t4 ligase Search Results


99
New England Biolabs t4 dna ligase
T4 Dna Ligase, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+DNA+Ligase/pm40020667-655-13-16
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TaKaRa t4 ligase
T4 Ligase, supplied by TaKaRa, used in various techniques. Bioz Stars score: 97/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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New England Biolabs b0202s
B0202s, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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97
New England Biolabs t4 rna ligase buffer
a, Cloverleaf structure of tRNA with some modifications. m 1 A, 1-methyladenosine; m 1 G, 1-methylguanosine; acp 3 U, 3-(3-amino-3-carboxypropyl) uridine; m G, N , N -dimethylguanosine; m 3 C, 3-methylcytidine; ncm 5 U, 5-carbamoylmethyluridine; mcm 5 U, 5-methoxycarbonylmethyluridine; mcm 5 s U, 5-methoxycarbonylmethyl-2-thiouridine; I, inosine; i A, N -isopentenyladenosine; t A, N -threonylcarbamoyladenosine; m t A, N -methyl- N -threonylcarbamoyladenosine; ms t A, 2-methylthio- N -threonylcarbamoyladenosine; m 1 I, 1-methylinosine. b, Chemical structures of some tRNA modifications. c, The ligation efficiency of Poly(A) polymerase and <t>T4</t> <t>RNA</t> ligase 2. Using an equal amount of total tRNA without any adapter ligation or poly(A) addition as a control, the ligation efficiency is calculated as the ratio of RNA molecules with successfully added adapters or poly(A) tails to those in the control. d, A pool of RNA oligonucleotides with identical sequences but varying 5’-terminal nucleotides (A, C, G, or U) was subjected to the template-switching reverse transcription library preparation under optimized conditions. The bar graph shows the proportion of each oligonucleotide recovered in the final sequencing libraries. e, Schematic overview illustrating the steps required for tRNA library preparation using FLORA-seq. f, Raw read coverage of mito_tRNA Leu (TAA) and cyto_tRNA Leu (AAG) from 20 HEK 293T. g, Raw read coverage of mito_tRNA Leu (TAG) and cyto_tRNA Leu (TAG) from 5 mouse morulae. h, Raw read coverage of 3’ and 5’tdR from 5 mouse morulae. i, Raw read coverage of internal tdRs from 5 mouse morulae. j, Pie chart illustrating the distribution of distinct RNA species identified from non-ribosomal genome-aligned reads in mouse morula sequencing data. Reads with mapped lengths below 15 bp were excluded from the analysis.
T4 Rna Ligase Buffer, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 97/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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99
New England Biolabs recombinant ribonuclease inhibitor
a, Cloverleaf structure of tRNA with some modifications. m 1 A, 1-methyladenosine; m 1 G, 1-methylguanosine; acp 3 U, 3-(3-amino-3-carboxypropyl) uridine; m G, N , N -dimethylguanosine; m 3 C, 3-methylcytidine; ncm 5 U, 5-carbamoylmethyluridine; mcm 5 U, 5-methoxycarbonylmethyluridine; mcm 5 s U, 5-methoxycarbonylmethyl-2-thiouridine; I, inosine; i A, N -isopentenyladenosine; t A, N -threonylcarbamoyladenosine; m t A, N -methyl- N -threonylcarbamoyladenosine; ms t A, 2-methylthio- N -threonylcarbamoyladenosine; m 1 I, 1-methylinosine. b, Chemical structures of some tRNA modifications. c, The ligation efficiency of Poly(A) polymerase and <t>T4</t> <t>RNA</t> ligase 2. Using an equal amount of total tRNA without any adapter ligation or poly(A) addition as a control, the ligation efficiency is calculated as the ratio of RNA molecules with successfully added adapters or poly(A) tails to those in the control. d, A pool of RNA oligonucleotides with identical sequences but varying 5’-terminal nucleotides (A, C, G, or U) was subjected to the template-switching reverse transcription library preparation under optimized conditions. The bar graph shows the proportion of each oligonucleotide recovered in the final sequencing libraries. e, Schematic overview illustrating the steps required for tRNA library preparation using FLORA-seq. f, Raw read coverage of mito_tRNA Leu (TAA) and cyto_tRNA Leu (AAG) from 20 HEK 293T. g, Raw read coverage of mito_tRNA Leu (TAG) and cyto_tRNA Leu (TAG) from 5 mouse morulae. h, Raw read coverage of 3’ and 5’tdR from 5 mouse morulae. i, Raw read coverage of internal tdRs from 5 mouse morulae. j, Pie chart illustrating the distribution of distinct RNA species identified from non-ribosomal genome-aligned reads in mouse morula sequencing data. Reads with mapped lengths below 15 bp were excluded from the analysis.
Recombinant Ribonuclease Inhibitor, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+RNA+Ligase+2/pm37723159-242-33-46
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99
New England Biolabs t4 rna ligase 1
a, Cloverleaf structure of tRNA with some modifications. m 1 A, 1-methyladenosine; m 1 G, 1-methylguanosine; acp 3 U, 3-(3-amino-3-carboxypropyl) uridine; m G, N , N -dimethylguanosine; m 3 C, 3-methylcytidine; ncm 5 U, 5-carbamoylmethyluridine; mcm 5 U, 5-methoxycarbonylmethyluridine; mcm 5 s U, 5-methoxycarbonylmethyl-2-thiouridine; I, inosine; i A, N -isopentenyladenosine; t A, N -threonylcarbamoyladenosine; m t A, N -methyl- N -threonylcarbamoyladenosine; ms t A, 2-methylthio- N -threonylcarbamoyladenosine; m 1 I, 1-methylinosine. b, Chemical structures of some tRNA modifications. c, The ligation efficiency of Poly(A) polymerase and <t>T4</t> <t>RNA</t> ligase 2. Using an equal amount of total tRNA without any adapter ligation or poly(A) addition as a control, the ligation efficiency is calculated as the ratio of RNA molecules with successfully added adapters or poly(A) tails to those in the control. d, A pool of RNA oligonucleotides with identical sequences but varying 5’-terminal nucleotides (A, C, G, or U) was subjected to the template-switching reverse transcription library preparation under optimized conditions. The bar graph shows the proportion of each oligonucleotide recovered in the final sequencing libraries. e, Schematic overview illustrating the steps required for tRNA library preparation using FLORA-seq. f, Raw read coverage of mito_tRNA Leu (TAA) and cyto_tRNA Leu (AAG) from 20 HEK 293T. g, Raw read coverage of mito_tRNA Leu (TAG) and cyto_tRNA Leu (TAG) from 5 mouse morulae. h, Raw read coverage of 3’ and 5’tdR from 5 mouse morulae. i, Raw read coverage of internal tdRs from 5 mouse morulae. j, Pie chart illustrating the distribution of distinct RNA species identified from non-ribosomal genome-aligned reads in mouse morula sequencing data. Reads with mapped lengths below 15 bp were excluded from the analysis.
T4 Rna Ligase 1, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+RNA+Ligase+1/pmc13030957-4-0-5
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99
New England Biolabs rnas
Figure 1. Tetranucleotide cap analogues act as initiators of in vitro transcription reactions. (A) Structure of the cap analogues used in this study; newly synthesized tetranucleotide and previously obtained trinucleotide (14) cap analogues are presented on the left and right side, respectively. (B) Comparison of the major transcription initiation events during the in vitro transcription reaction when either no cap analogue, a trinucleotide cap analogue or a tetranucleotide cap analogue was used as an initiator. <t>Capped</t> <t>RNA</t> obtained in the in vitro transcription reaction with a tri- or tetranucleotide cap analogue is 27 nt long, as uncapped RNA is 25 nt long. (C) Analysis of short <t>RNAs</t> obtained by in vitro transcription using T7 RNA polymerase in the presence of different cap analogues (DNAzyme-trimmed and HPLC-purified transcripts). The capping efficiency values (percentage) determined by densitometric quantification of the major bands corresponding to capped and uncapped RNA are shown at the top of the gel. Minor extra bands most probably arise from unspecific addition of nucleotides during in vitro transcription.
Rnas, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+RNA+Ligase+1/pm36018811-98-8-15
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93
tiangen biotech co t4 dna ligase
Figure 1. Tetranucleotide cap analogues act as initiators of in vitro transcription reactions. (A) Structure of the cap analogues used in this study; newly synthesized tetranucleotide and previously obtained trinucleotide (14) cap analogues are presented on the left and right side, respectively. (B) Comparison of the major transcription initiation events during the in vitro transcription reaction when either no cap analogue, a trinucleotide cap analogue or a tetranucleotide cap analogue was used as an initiator. <t>Capped</t> <t>RNA</t> obtained in the in vitro transcription reaction with a tri- or tetranucleotide cap analogue is 27 nt long, as uncapped RNA is 25 nt long. (C) Analysis of short <t>RNAs</t> obtained by in vitro transcription using T7 RNA polymerase in the presence of different cap analogues (DNAzyme-trimmed and HPLC-purified transcripts). The capping efficiency values (percentage) determined by densitometric quantification of the major bands corresponding to capped and uncapped RNA are shown at the top of the gel. Minor extra bands most probably arise from unspecific addition of nucleotides during in vitro transcription.
T4 Dna Ligase, supplied by tiangen biotech co, used in various techniques. Bioz Stars score: 93/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+DNA+Ligase/pmc07428733-48-25-28
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95
ABclonal Biotechnology t4 dna ligase
Figure 1. Tetranucleotide cap analogues act as initiators of in vitro transcription reactions. (A) Structure of the cap analogues used in this study; newly synthesized tetranucleotide and previously obtained trinucleotide (14) cap analogues are presented on the left and right side, respectively. (B) Comparison of the major transcription initiation events during the in vitro transcription reaction when either no cap analogue, a trinucleotide cap analogue or a tetranucleotide cap analogue was used as an initiator. <t>Capped</t> <t>RNA</t> obtained in the in vitro transcription reaction with a tri- or tetranucleotide cap analogue is 27 nt long, as uncapped RNA is 25 nt long. (C) Analysis of short <t>RNAs</t> obtained by in vitro transcription using T7 RNA polymerase in the presence of different cap analogues (DNAzyme-trimmed and HPLC-purified transcripts). The capping efficiency values (percentage) determined by densitometric quantification of the major bands corresponding to capped and uncapped RNA are shown at the top of the gel. Minor extra bands most probably arise from unspecific addition of nucleotides during in vitro transcription.
T4 Dna Ligase, supplied by ABclonal Biotechnology, used in various techniques. Bioz Stars score: 95/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+DNA+Ligase/bio_rxiv__2024__06__26__600744-350-6-9
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New England Biolabs salt t4 dna ligase
a Nucleobase structures of the standard <t>DNA</t> base pairs (G ≡ C, A = T). Dashed arrows indicate functional groups that participate in hydrogen bonding, drawn from the hydrogen-bond donor to the acceptor. b Nucleobase structures of two hydrogen-bonding UBPs (B ≡ S, P ≡ Z) studied in this work. The structure of S shown is S n (5-methyl-isocytosine). Putative replication error modes of each UBP are shown by red equilibrium arrows. During replication, keto-enol tautomerization (Taut.) of B can rearrange the H-bonding patterns (shown in red), leading to a Watson-Crick-Franklin mismatch with T, resulting in B → A and S → T <t>DNA</t> transitions. Similarly, deprotonation of the Z nucleobase can lead to a mismatch with G, resulting in P → G and Z → C <t>DNA</t> transitions. c Nucleobase structures of the non-hydrogen-bonding UBP, Ds:Diol-Px. Self-pairing of the Ds base can lead to UBP strand inversions (i.e, Ds→Diol-Px and Diol-Px→ Ds).
Salt T4 Dna Ligase, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 95/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/Salt-T4+DNA+Ligase/pmc13601594-329-30-34
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salt t4 dna ligase - by Bioz Stars, 2026-10
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99
Beyotime sodium palmitate
a Nucleobase structures of the standard <t>DNA</t> base pairs (G ≡ C, A = T). Dashed arrows indicate functional groups that participate in hydrogen bonding, drawn from the hydrogen-bond donor to the acceptor. b Nucleobase structures of two hydrogen-bonding UBPs (B ≡ S, P ≡ Z) studied in this work. The structure of S shown is S n (5-methyl-isocytosine). Putative replication error modes of each UBP are shown by red equilibrium arrows. During replication, keto-enol tautomerization (Taut.) of B can rearrange the H-bonding patterns (shown in red), leading to a Watson-Crick-Franklin mismatch with T, resulting in B → A and S → T <t>DNA</t> transitions. Similarly, deprotonation of the Z nucleobase can lead to a mismatch with G, resulting in P → G and Z → C <t>DNA</t> transitions. c Nucleobase structures of the non-hydrogen-bonding UBP, Ds:Diol-Px. Self-pairing of the Ds base can lead to UBP strand inversions (i.e, Ds→Diol-Px and Diol-Px→ Ds).
Sodium Palmitate, supplied by Beyotime, used in various techniques. Bioz Stars score: 99/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+DNA+Ligase/pm38583151-230-215-242
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98
New England Biolabs kq neb
a Nucleobase structures of the standard <t>DNA</t> base pairs (G ≡ C, A = T). Dashed arrows indicate functional groups that participate in hydrogen bonding, drawn from the hydrogen-bond donor to the acceptor. b Nucleobase structures of two hydrogen-bonding UBPs (B ≡ S, P ≡ Z) studied in this work. The structure of S shown is S n (5-methyl-isocytosine). Putative replication error modes of each UBP are shown by red equilibrium arrows. During replication, keto-enol tautomerization (Taut.) of B can rearrange the H-bonding patterns (shown in red), leading to a Watson-Crick-Franklin mismatch with T, resulting in B → A and S → T <t>DNA</t> transitions. Similarly, deprotonation of the Z nucleobase can lead to a mismatch with G, resulting in P → G and Z → C <t>DNA</t> transitions. c Nucleobase structures of the non-hydrogen-bonding UBP, Ds:Diol-Px. Self-pairing of the Ds base can lead to UBP strand inversions (i.e, Ds→Diol-Px and Diol-Px→ Ds).
Kq Neb, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 98/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
https://www.bioz.com/product/t4+ligase/T4+RNA+Ligase+2%2C+truncated+KQ/pmc12716993-268-23-24
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Image Search Results


a, Cloverleaf structure of tRNA with some modifications. m 1 A, 1-methyladenosine; m 1 G, 1-methylguanosine; acp 3 U, 3-(3-amino-3-carboxypropyl) uridine; m G, N , N -dimethylguanosine; m 3 C, 3-methylcytidine; ncm 5 U, 5-carbamoylmethyluridine; mcm 5 U, 5-methoxycarbonylmethyluridine; mcm 5 s U, 5-methoxycarbonylmethyl-2-thiouridine; I, inosine; i A, N -isopentenyladenosine; t A, N -threonylcarbamoyladenosine; m t A, N -methyl- N -threonylcarbamoyladenosine; ms t A, 2-methylthio- N -threonylcarbamoyladenosine; m 1 I, 1-methylinosine. b, Chemical structures of some tRNA modifications. c, The ligation efficiency of Poly(A) polymerase and T4 RNA ligase 2. Using an equal amount of total tRNA without any adapter ligation or poly(A) addition as a control, the ligation efficiency is calculated as the ratio of RNA molecules with successfully added adapters or poly(A) tails to those in the control. d, A pool of RNA oligonucleotides with identical sequences but varying 5’-terminal nucleotides (A, C, G, or U) was subjected to the template-switching reverse transcription library preparation under optimized conditions. The bar graph shows the proportion of each oligonucleotide recovered in the final sequencing libraries. e, Schematic overview illustrating the steps required for tRNA library preparation using FLORA-seq. f, Raw read coverage of mito_tRNA Leu (TAA) and cyto_tRNA Leu (AAG) from 20 HEK 293T. g, Raw read coverage of mito_tRNA Leu (TAG) and cyto_tRNA Leu (TAG) from 5 mouse morulae. h, Raw read coverage of 3’ and 5’tdR from 5 mouse morulae. i, Raw read coverage of internal tdRs from 5 mouse morulae. j, Pie chart illustrating the distribution of distinct RNA species identified from non-ribosomal genome-aligned reads in mouse morula sequencing data. Reads with mapped lengths below 15 bp were excluded from the analysis.

Journal: bioRxiv

Article Title: Ultra-sensitive FLORA-seq links cell-type-specific tRNAome dynamics to differentiation trajectories guiding therapeutic suppressor tRNA candidate selection

doi: 10.64898/2026.04.14.718460

Figure Lengend Snippet: a, Cloverleaf structure of tRNA with some modifications. m 1 A, 1-methyladenosine; m 1 G, 1-methylguanosine; acp 3 U, 3-(3-amino-3-carboxypropyl) uridine; m G, N , N -dimethylguanosine; m 3 C, 3-methylcytidine; ncm 5 U, 5-carbamoylmethyluridine; mcm 5 U, 5-methoxycarbonylmethyluridine; mcm 5 s U, 5-methoxycarbonylmethyl-2-thiouridine; I, inosine; i A, N -isopentenyladenosine; t A, N -threonylcarbamoyladenosine; m t A, N -methyl- N -threonylcarbamoyladenosine; ms t A, 2-methylthio- N -threonylcarbamoyladenosine; m 1 I, 1-methylinosine. b, Chemical structures of some tRNA modifications. c, The ligation efficiency of Poly(A) polymerase and T4 RNA ligase 2. Using an equal amount of total tRNA without any adapter ligation or poly(A) addition as a control, the ligation efficiency is calculated as the ratio of RNA molecules with successfully added adapters or poly(A) tails to those in the control. d, A pool of RNA oligonucleotides with identical sequences but varying 5’-terminal nucleotides (A, C, G, or U) was subjected to the template-switching reverse transcription library preparation under optimized conditions. The bar graph shows the proportion of each oligonucleotide recovered in the final sequencing libraries. e, Schematic overview illustrating the steps required for tRNA library preparation using FLORA-seq. f, Raw read coverage of mito_tRNA Leu (TAA) and cyto_tRNA Leu (AAG) from 20 HEK 293T. g, Raw read coverage of mito_tRNA Leu (TAG) and cyto_tRNA Leu (TAG) from 5 mouse morulae. h, Raw read coverage of 3’ and 5’tdR from 5 mouse morulae. i, Raw read coverage of internal tdRs from 5 mouse morulae. j, Pie chart illustrating the distribution of distinct RNA species identified from non-ribosomal genome-aligned reads in mouse morula sequencing data. Reads with mapped lengths below 15 bp were excluded from the analysis.

Article Snippet: The ligation reaction was performed in a 20 μL reaction containing 1 × T4 RNA ligase buffer, 200 ng tRNA, 10 μM pre-adenylated DNA adapter (Synthesized by Novazyme), and 200 U of T4 RNA ligase 2 (NEB) at 25°C for 2 h

Techniques: Ligation, Adapter Ligation, Control, Reverse Transcription, Sequencing

Figure 1. Tetranucleotide cap analogues act as initiators of in vitro transcription reactions. (A) Structure of the cap analogues used in this study; newly synthesized tetranucleotide and previously obtained trinucleotide (14) cap analogues are presented on the left and right side, respectively. (B) Comparison of the major transcription initiation events during the in vitro transcription reaction when either no cap analogue, a trinucleotide cap analogue or a tetranucleotide cap analogue was used as an initiator. Capped RNA obtained in the in vitro transcription reaction with a tri- or tetranucleotide cap analogue is 27 nt long, as uncapped RNA is 25 nt long. (C) Analysis of short RNAs obtained by in vitro transcription using T7 RNA polymerase in the presence of different cap analogues (DNAzyme-trimmed and HPLC-purified transcripts). The capping efficiency values (percentage) determined by densitometric quantification of the major bands corresponding to capped and uncapped RNA are shown at the top of the gel. Minor extra bands most probably arise from unspecific addition of nucleotides during in vitro transcription.

Journal: Nucleic acids research

Article Title: 2'-O-Methylation of the second transcribed nucleotide within the mRNA 5' cap impacts the protein production level in a cell-specific manner and contributes to RNA immune evasion.

doi: 10.1093/nar/gkac722

Figure Lengend Snippet: Figure 1. Tetranucleotide cap analogues act as initiators of in vitro transcription reactions. (A) Structure of the cap analogues used in this study; newly synthesized tetranucleotide and previously obtained trinucleotide (14) cap analogues are presented on the left and right side, respectively. (B) Comparison of the major transcription initiation events during the in vitro transcription reaction when either no cap analogue, a trinucleotide cap analogue or a tetranucleotide cap analogue was used as an initiator. Capped RNA obtained in the in vitro transcription reaction with a tri- or tetranucleotide cap analogue is 27 nt long, as uncapped RNA is 25 nt long. (C) Analysis of short RNAs obtained by in vitro transcription using T7 RNA polymerase in the presence of different cap analogues (DNAzyme-trimmed and HPLC-purified transcripts). The capping efficiency values (percentage) determined by densitometric quantification of the major bands corresponding to capped and uncapped RNA are shown at the top of the gel. Minor extra bands most probably arise from unspecific addition of nucleotides during in vitro transcription.

Article Snippet: Biotinylated pAp (pAp N6-PEG-biot) (22) was ligated to RNAs by T4 RNA ligase 1 (M0204, New England Biolabs).

Techniques: Analogues, In Vitro, Synthesized, Comparison, Purification

Figure 3. 2′-O-Methylation within the cap structure does not influence RNA affinity for the translational machinery. (A) Relative affinities of transcripts bearing different cap analogues for murine eIF4E determined using MST. Bars represent the mean value ± SEM from three independent replicates. Statistical significance: **P <0.01 (one-way ANOVA with Turkey’s multiple comparisons test). (Representative MST curves and competitive binding curves obtained in the experiment are presented in Supplementary Figure S8.) (B) Comparison of apparent binding constant values KD,app for capped RNAs in complexes with murine eIF4E measured with MST with dissociation constants of eIF4E–cap complexes obtained using time-synchronized fluorescence quenching titration (ts-FQT) (14). For all RNAs, three independent replicates were performed, besides cap2(A) and cap2-1(A) RNAs, for which data from two replicates are presented. (C) Competition of differently capped IVT mRNAs encoding Gaussia luciferase with endogenous mRNAs for the translation machinery. HEK 293 Flp-In T-REx cells expressing shmiRs targeting CMTR1, CMTR2 or both (a negative control was utilized in parallel) were transfected with IVT mRNAs, and medium was collected after 72 h for luciferase activity analysis. Bars represent the mean value ± SEM normalized to Gaussia luciferase activity measured for transcripts with cap0(A). Data for three independent experiments are presented (each biological replicate consisted of three transfections).

Journal: Nucleic acids research

Article Title: 2'-O-Methylation of the second transcribed nucleotide within the mRNA 5' cap impacts the protein production level in a cell-specific manner and contributes to RNA immune evasion.

doi: 10.1093/nar/gkac722

Figure Lengend Snippet: Figure 3. 2′-O-Methylation within the cap structure does not influence RNA affinity for the translational machinery. (A) Relative affinities of transcripts bearing different cap analogues for murine eIF4E determined using MST. Bars represent the mean value ± SEM from three independent replicates. Statistical significance: **P <0.01 (one-way ANOVA with Turkey’s multiple comparisons test). (Representative MST curves and competitive binding curves obtained in the experiment are presented in Supplementary Figure S8.) (B) Comparison of apparent binding constant values KD,app for capped RNAs in complexes with murine eIF4E measured with MST with dissociation constants of eIF4E–cap complexes obtained using time-synchronized fluorescence quenching titration (ts-FQT) (14). For all RNAs, three independent replicates were performed, besides cap2(A) and cap2-1(A) RNAs, for which data from two replicates are presented. (C) Competition of differently capped IVT mRNAs encoding Gaussia luciferase with endogenous mRNAs for the translation machinery. HEK 293 Flp-In T-REx cells expressing shmiRs targeting CMTR1, CMTR2 or both (a negative control was utilized in parallel) were transfected with IVT mRNAs, and medium was collected after 72 h for luciferase activity analysis. Bars represent the mean value ± SEM normalized to Gaussia luciferase activity measured for transcripts with cap0(A). Data for three independent experiments are presented (each biological replicate consisted of three transfections).

Article Snippet: Biotinylated pAp (pAp N6-PEG-biot) (22) was ligated to RNAs by T4 RNA ligase 1 (M0204, New England Biolabs).

Techniques: Methylation, Analogues, Binding Assay, Comparison, Fluorescence, Titration, Luciferase, Expressing, Negative Control, Transfection, Activity Assay

Figure 4. 2′-O-Methylation of the second transcribed nucleotide prevents RNA from decapping by DXO but not by DCP2. (A–C) Short capped RNAs were subjected to treatment with hDCP2 (wild type or mutant) over a 60 min time-course. Reactions without enzyme served as controls. Aliquots from the indicated time points were resolved on a polyacrylamide gel and bands corresponding to capped transcripts (27 nt long) and to RNAs decapped by hDCP2 action (26 nt long) were quantified densitometrically. (A) Representative polyacrylamide gel analyses obtained for all tested capped RNAs (two additional repetitions with wild-type hDCP2 of this experiment are shown in Supplementary Figure S12). (B and C) Quantitative results for all studied RNAs. The fraction of capped RNA remaining in the total RNA was plotted as a function of time. Data points represent mean values ± SD from triplicate experiments. (D) Short capped RNAs were subjected to treatment with hDXO (wild type or mutant) over a 60 min time-course. Reactions without enzyme served as controls. Aliquots from the indicated time points were resolved on a polyacrylamide gel. (E) Experimental set-up as in (D); however, a 2.5-fold higher hDXO concentration was used.

Journal: Nucleic acids research

Article Title: 2'-O-Methylation of the second transcribed nucleotide within the mRNA 5' cap impacts the protein production level in a cell-specific manner and contributes to RNA immune evasion.

doi: 10.1093/nar/gkac722

Figure Lengend Snippet: Figure 4. 2′-O-Methylation of the second transcribed nucleotide prevents RNA from decapping by DXO but not by DCP2. (A–C) Short capped RNAs were subjected to treatment with hDCP2 (wild type or mutant) over a 60 min time-course. Reactions without enzyme served as controls. Aliquots from the indicated time points were resolved on a polyacrylamide gel and bands corresponding to capped transcripts (27 nt long) and to RNAs decapped by hDCP2 action (26 nt long) were quantified densitometrically. (A) Representative polyacrylamide gel analyses obtained for all tested capped RNAs (two additional repetitions with wild-type hDCP2 of this experiment are shown in Supplementary Figure S12). (B and C) Quantitative results for all studied RNAs. The fraction of capped RNA remaining in the total RNA was plotted as a function of time. Data points represent mean values ± SD from triplicate experiments. (D) Short capped RNAs were subjected to treatment with hDXO (wild type or mutant) over a 60 min time-course. Reactions without enzyme served as controls. Aliquots from the indicated time points were resolved on a polyacrylamide gel. (E) Experimental set-up as in (D); however, a 2.5-fold higher hDXO concentration was used.

Article Snippet: Biotinylated pAp (pAp N6-PEG-biot) (22) was ligated to RNAs by T4 RNA ligase 1 (M0204, New England Biolabs).

Techniques: Methylation, Mutagenesis, Concentration Assay

a Nucleobase structures of the standard DNA base pairs (G ≡ C, A = T). Dashed arrows indicate functional groups that participate in hydrogen bonding, drawn from the hydrogen-bond donor to the acceptor. b Nucleobase structures of two hydrogen-bonding UBPs (B ≡ S, P ≡ Z) studied in this work. The structure of S shown is S n (5-methyl-isocytosine). Putative replication error modes of each UBP are shown by red equilibrium arrows. During replication, keto-enol tautomerization (Taut.) of B can rearrange the H-bonding patterns (shown in red), leading to a Watson-Crick-Franklin mismatch with T, resulting in B → A and S → T DNA transitions. Similarly, deprotonation of the Z nucleobase can lead to a mismatch with G, resulting in P → G and Z → C DNA transitions. c Nucleobase structures of the non-hydrogen-bonding UBP, Ds:Diol-Px. Self-pairing of the Ds base can lead to UBP strand inversions (i.e, Ds→Diol-Px and Diol-Px→ Ds).

Journal: Nature Communications

Article Title: Quantifying replication fidelity of unnatural base pairs using nanopore sequencing

doi: 10.1038/s41467-026-76964-9

Figure Lengend Snippet: a Nucleobase structures of the standard DNA base pairs (G ≡ C, A = T). Dashed arrows indicate functional groups that participate in hydrogen bonding, drawn from the hydrogen-bond donor to the acceptor. b Nucleobase structures of two hydrogen-bonding UBPs (B ≡ S, P ≡ Z) studied in this work. The structure of S shown is S n (5-methyl-isocytosine). Putative replication error modes of each UBP are shown by red equilibrium arrows. During replication, keto-enol tautomerization (Taut.) of B can rearrange the H-bonding patterns (shown in red), leading to a Watson-Crick-Franklin mismatch with T, resulting in B → A and S → T DNA transitions. Similarly, deprotonation of the Z nucleobase can lead to a mismatch with G, resulting in P → G and Z → C DNA transitions. c Nucleobase structures of the non-hydrogen-bonding UBP, Ds:Diol-Px. Self-pairing of the Ds base can lead to UBP strand inversions (i.e, Ds→Diol-Px and Diol-Px→ Ds).

Article Snippet: Beads were washed twice using freshly prepared 70% ethanol and clean samples were ligated with ligation adapters (LA) in ligation buffer (LNB) using either Quick T4 DNA Ligase (NEB) or Salt T4 DNA Ligase (NEB).

Techniques: Functional Assay

a Segmented and normalized (norm.) nanopore signal traces for DNA sequences containing UBs (blue: B, S; orange: P, Z; red: Ds (D), Diol-Px (X)) compared with identical sequences containing only standard bases (black traces). The colored shade highlights the UB position in the sequence. The median signal is plotted ( n = 500 reads per class). b Overview of comparative basecalling model architecture. c Confusion matrices generated from benchmarking comparative models (BA1, ST1) to detect BS error modes in the 5′-GBC-3′ context (left: B vs A; n = 10,000 reads per class, right: S vs T; n = 10,000 reads per class). The quantified UB fraction B ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{B}$$\end{document} f B ; blue) and fraction S ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{S}$$\end{document} f S ; gray) when the same models are applied to demultiplexed synthetic DNA standards containing an AT (BA1:ST1) or BS (B1:S1) base pair across five independent sequencing experiments. The mean ± SD of experimental replicates ( n = 5) is plotted with replicate values overlaid as points. d Specificity (TNR; true negative rate) versus recall (TPR; true positive rate) for all comparative basecalling models generated in this work. Colors correspond to the UB each model is trained to detect (blue: B; light blue: S; orange: P; light orange: Z; red: Ds; light red: Px). Dashed lines show 98% thresholds for recall and specificity. Raw data are tabulated in the Source Data file.

Journal: Nature Communications

Article Title: Quantifying replication fidelity of unnatural base pairs using nanopore sequencing

doi: 10.1038/s41467-026-76964-9

Figure Lengend Snippet: a Segmented and normalized (norm.) nanopore signal traces for DNA sequences containing UBs (blue: B, S; orange: P, Z; red: Ds (D), Diol-Px (X)) compared with identical sequences containing only standard bases (black traces). The colored shade highlights the UB position in the sequence. The median signal is plotted ( n = 500 reads per class). b Overview of comparative basecalling model architecture. c Confusion matrices generated from benchmarking comparative models (BA1, ST1) to detect BS error modes in the 5′-GBC-3′ context (left: B vs A; n = 10,000 reads per class, right: S vs T; n = 10,000 reads per class). The quantified UB fraction B ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{B}$$\end{document} f B ; blue) and fraction S ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{S}$$\end{document} f S ; gray) when the same models are applied to demultiplexed synthetic DNA standards containing an AT (BA1:ST1) or BS (B1:S1) base pair across five independent sequencing experiments. The mean ± SD of experimental replicates ( n = 5) is plotted with replicate values overlaid as points. d Specificity (TNR; true negative rate) versus recall (TPR; true positive rate) for all comparative basecalling models generated in this work. Colors correspond to the UB each model is trained to detect (blue: B; light blue: S; orange: P; light orange: Z; red: Ds; light red: Px). Dashed lines show 98% thresholds for recall and specificity. Raw data are tabulated in the Source Data file.

Article Snippet: Beads were washed twice using freshly prepared 70% ethanol and clean samples were ligated with ligation adapters (LA) in ligation buffer (LNB) using either Quick T4 DNA Ligase (NEB) or Salt T4 DNA Ligase (NEB).

Techniques: Sequencing, Generated

a Synthetic template containing the PZ UBP is PCR amplified at pH 8.0 or pH 8.8. b UB fractions for P ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{P}$$\end{document} f P ; darker shades) and Z ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{Z}$$\end{document} f Z ; lighter shades), following PCR amplification with Takara Taq polymerase at pH 8.0 (orange) or pH 8.8 (gray). UB fractions measured for demultiplexed internal standards (PZ, GC) are shown in orange. c -Log 2 -transformed, normalized average UB fractions ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{\left\langle P,Z\right\rangle }$$\end{document} f P , Z ), plotted as mean ± SD of experimental replicates ( n = 3). Data series include reaction pH 8.8 (gray) and pH 8.0 (orange), at either standard dPTP concentration (0.2 mM; circles) or optimized (opt) dPTP concentration (0.5 mM; diamonds). WLS linear regression fits are shown using a dashed line. The average replication fidelity, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle P,Z\right\rangle }$$\end{document} φ P , Z (95% CI; n = 3) for each condition is displayed on the plot. d 8-letter PCR performed on 6-letter DNA (ATGCBP) ssDNA template. e Normalized species fractions for the various 4-letter (gray; \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{GA}}$$\end{document} f G A , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{TC}}$$\end{document} f T C ), 5-letter (blue: \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{GB}}$$\end{document} f G B , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{SC}}$$\end{document} f S C ; orange: \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{PA}}$$\end{document} f P A , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{TZ}}$$\end{document} f T Z ), and 6-letter (purple: \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{PB}}$$\end{document} f P B , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{SZ}}$$\end{document} f S Z ) DNA molecular species. Darker shades represent sense-strand (+) species, and lighter shades represent antisense-strand (-) species. Mean ± SD is plotted with experimental replicate values overlaid as points ( n = 3). Modeled species fractions (Supplementary Equation (41)) are plotted using dashed lines, with the fidelities used to constrain the model ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle B,S\right\rangle }$$\end{document} φ B , S and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle P,Z\right\rangle }$$\end{document} φ P , Z ) included on the plot. f -Log 2 -transformed average fraction of 6-letter species ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{\left\langle {PB},{SZ}\right\rangle }$$\end{document} f P B , S Z ). Mean ± SD is plotted with experimental replicate values overlaid ( n = 3). The average joint replication fidelity for the 8-letter species, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle B,{S|P},Z\right\rangle }$$\end{document} φ B , S ∣ P , Z (95% CI; n = 3) is shown on the plot. Average replication fidelities for each individual UBP, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle B,S\right\rangle }$$\end{document} φ B , S and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle P,Z\right\rangle }$$\end{document} φ P , Z (95% CI; n = 3) are also shown (gray font). The raw data used to generate these plots are tabulated in the Source Data file.

Journal: Nature Communications

Article Title: Quantifying replication fidelity of unnatural base pairs using nanopore sequencing

doi: 10.1038/s41467-026-76964-9

Figure Lengend Snippet: a Synthetic template containing the PZ UBP is PCR amplified at pH 8.0 or pH 8.8. b UB fractions for P ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{P}$$\end{document} f P ; darker shades) and Z ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{Z}$$\end{document} f Z ; lighter shades), following PCR amplification with Takara Taq polymerase at pH 8.0 (orange) or pH 8.8 (gray). UB fractions measured for demultiplexed internal standards (PZ, GC) are shown in orange. c -Log 2 -transformed, normalized average UB fractions ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{\left\langle P,Z\right\rangle }$$\end{document} f P , Z ), plotted as mean ± SD of experimental replicates ( n = 3). Data series include reaction pH 8.8 (gray) and pH 8.0 (orange), at either standard dPTP concentration (0.2 mM; circles) or optimized (opt) dPTP concentration (0.5 mM; diamonds). WLS linear regression fits are shown using a dashed line. The average replication fidelity, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle P,Z\right\rangle }$$\end{document} φ P , Z (95% CI; n = 3) for each condition is displayed on the plot. d 8-letter PCR performed on 6-letter DNA (ATGCBP) ssDNA template. e Normalized species fractions for the various 4-letter (gray; \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{GA}}$$\end{document} f G A , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{TC}}$$\end{document} f T C ), 5-letter (blue: \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{GB}}$$\end{document} f G B , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{SC}}$$\end{document} f S C ; orange: \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{PA}}$$\end{document} f P A , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{TZ}}$$\end{document} f T Z ), and 6-letter (purple: \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{PB}}$$\end{document} f P B , \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{SZ}}$$\end{document} f S Z ) DNA molecular species. Darker shades represent sense-strand (+) species, and lighter shades represent antisense-strand (-) species. Mean ± SD is plotted with experimental replicate values overlaid as points ( n = 3). Modeled species fractions (Supplementary Equation (41)) are plotted using dashed lines, with the fidelities used to constrain the model ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle B,S\right\rangle }$$\end{document} φ B , S and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle P,Z\right\rangle }$$\end{document} φ P , Z ) included on the plot. f -Log 2 -transformed average fraction of 6-letter species ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{\left\langle {PB},{SZ}\right\rangle }$$\end{document} f P B , S Z ). Mean ± SD is plotted with experimental replicate values overlaid ( n = 3). The average joint replication fidelity for the 8-letter species, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle B,{S|P},Z\right\rangle }$$\end{document} φ B , S ∣ P , Z (95% CI; n = 3) is shown on the plot. Average replication fidelities for each individual UBP, \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle B,S\right\rangle }$$\end{document} φ B , S and \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle P,Z\right\rangle }$$\end{document} φ P , Z (95% CI; n = 3) are also shown (gray font). The raw data used to generate these plots are tabulated in the Source Data file.

Article Snippet: Beads were washed twice using freshly prepared 70% ethanol and clean samples were ligated with ligation adapters (LA) in ligation buffer (LNB) using either Quick T4 DNA Ligase (NEB) or Salt T4 DNA Ligase (NEB).

Techniques: Amplification, Transformation Assay, Concentration Assay

a Synthetic ssDNA template containing the Ds base is PCR amplified using AccuPrime Pfx polymerase, resulting in products that may contain DNA transversions or UBP inversions. b Schematic of the DsPx (Px = Diol-Px) PCR model (Supplementary Equation (46)), with arrows representing replication events drawn from the template to the inserted base. Included are UB → N transversion errors (gray), UBP inversion errors (red), and correct UB incorporations (black). Epsilon ( ɛ ε ) is the error rate and mu ( μ μ ) is the correct UB incorporation rate, with the superscript sign denoting the template strand ( + for sense, - for antisense). Normalized fraction of Ds ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s ), Px ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Px}}$$\end{document} f P x ), and N ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{N}$$\end{document} f N ; N = A,T,G,C) located on the sense (+, lighter shades) or antisense (-, darker shades) strands are shown following PCR amplification of ssDNA templates c D1 or d D2. Retained UBs (Sense: Ds; Antisense: Px) are shown in blue, inverted UBs (Sense: Px; Antisense: Ds) are shown in red, and DNA transversions (N; either strand) are shown in gray. On each plot, the mean value ± SD is plotted with experimental replicate values overlaid as points ( n = 3). e -Log 2 -linear transform of the fraction of UB-containing (inversion-agnostic) species ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s + \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Px}}$$\end{document} f P x ), averaged across strands ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{\left\langle {Ds}+{Px},{Px}+{Ds}\right\rangle }$$\end{document} f D s + P x , P x + D s ) for templates D1 (blue) and D2 (black). The mean value ± SD of experimental replicates is plotted ( n = 3). The DNA transversion fidelities ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle {Ds},{Px}\right\rangle }^{{{\rm{trnv}}}}$$\end{document} φ D s , P x trnv ) for PCR amplification of templates D1 and D2 are shown on the plot (95% CI). f Fraction Ds ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s ) relative to the fraction of the UB-containing species ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s + \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Px}}$$\end{document} f P x ) on sense (+, black) and antisense (-, red) strands for template D2. The mean value ± SD is plotted with experimental replicate values overlaid as points ( n = 3). The dashed lines represent the nonlinear fit of a reduced ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varepsilon }_{{YY}}^{+}={\varepsilon }_{{XX}}^{-}=0$$\end{document} ε Y Y + = ε X X − = 0 ) state-transition model for the effective inversion rate ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varepsilon }_{{inv}}={\varepsilon }_{{XX}}^{+}={\varepsilon }_{{YY}}^{-}$$\end{document} ε i n v = ε X X + = ε Y Y − ) on the sense (black) and antisense (red) strands. The root-mean-square error (RMSE) of the nonlinear model fit is shown. Plotted values are the mean of experimental triplicates ± standard deviation ( n = 3). The raw data used to generate each plot are tabulated in the Source Data file.

Journal: Nature Communications

Article Title: Quantifying replication fidelity of unnatural base pairs using nanopore sequencing

doi: 10.1038/s41467-026-76964-9

Figure Lengend Snippet: a Synthetic ssDNA template containing the Ds base is PCR amplified using AccuPrime Pfx polymerase, resulting in products that may contain DNA transversions or UBP inversions. b Schematic of the DsPx (Px = Diol-Px) PCR model (Supplementary Equation (46)), with arrows representing replication events drawn from the template to the inserted base. Included are UB → N transversion errors (gray), UBP inversion errors (red), and correct UB incorporations (black). Epsilon ( ɛ ε ) is the error rate and mu ( μ μ ) is the correct UB incorporation rate, with the superscript sign denoting the template strand ( + for sense, - for antisense). Normalized fraction of Ds ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s ), Px ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Px}}$$\end{document} f P x ), and N ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{N}$$\end{document} f N ; N = A,T,G,C) located on the sense (+, lighter shades) or antisense (-, darker shades) strands are shown following PCR amplification of ssDNA templates c D1 or d D2. Retained UBs (Sense: Ds; Antisense: Px) are shown in blue, inverted UBs (Sense: Px; Antisense: Ds) are shown in red, and DNA transversions (N; either strand) are shown in gray. On each plot, the mean value ± SD is plotted with experimental replicate values overlaid as points ( n = 3). e -Log 2 -linear transform of the fraction of UB-containing (inversion-agnostic) species ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s + \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Px}}$$\end{document} f P x ), averaged across strands ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{\left\langle {Ds}+{Px},{Px}+{Ds}\right\rangle }$$\end{document} f D s + P x , P x + D s ) for templates D1 (blue) and D2 (black). The mean value ± SD of experimental replicates is plotted ( n = 3). The DNA transversion fidelities ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varphi }_{\left\langle {Ds},{Px}\right\rangle }^{{{\rm{trnv}}}}$$\end{document} φ D s , P x trnv ) for PCR amplification of templates D1 and D2 are shown on the plot (95% CI). f Fraction Ds ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s ) relative to the fraction of the UB-containing species ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Ds}}$$\end{document} f D s + \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${f}_{{Px}}$$\end{document} f P x ) on sense (+, black) and antisense (-, red) strands for template D2. The mean value ± SD is plotted with experimental replicate values overlaid as points ( n = 3). The dashed lines represent the nonlinear fit of a reduced ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varepsilon }_{{YY}}^{+}={\varepsilon }_{{XX}}^{-}=0$$\end{document} ε Y Y + = ε X X − = 0 ) state-transition model for the effective inversion rate ( \documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\varepsilon }_{{inv}}={\varepsilon }_{{XX}}^{+}={\varepsilon }_{{YY}}^{-}$$\end{document} ε i n v = ε X X + = ε Y Y − ) on the sense (black) and antisense (red) strands. The root-mean-square error (RMSE) of the nonlinear model fit is shown. Plotted values are the mean of experimental triplicates ± standard deviation ( n = 3). The raw data used to generate each plot are tabulated in the Source Data file.

Article Snippet: Beads were washed twice using freshly prepared 70% ethanol and clean samples were ligated with ligation adapters (LA) in ligation buffer (LNB) using either Quick T4 DNA Ligase (NEB) or Salt T4 DNA Ligase (NEB).

Techniques: Amplification, Standard Deviation