e coli dna polymerase i Thermo Fisher Search Results


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  • 99
    New England Biolabs dna polymerase
    Dna Polymerase, supplied by New England Biolabs, used in various techniques. Bioz Stars score: 99/100, based on 4972 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/dna polymerase/product/New England Biolabs
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    99
    Thermo Fisher escherichia coli dna polymerase i
    Effect of the W88G mutation on removal of AZTMP from blocked primer-template. (A) AZTMP-terminated [5′- 32 P]L33 primer-WL50 template was incubated with the indicated WT or mutant RT in the absence (−) or presence (+) of 3.2 mM ATP for the indicated times at 37°C. The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with an exonuclease-free Klenow fragment of E. coli <t>DNA</t> polymerase I. The products were separated on a 20% denaturing polyacrylamide gel. The positions of unextended primer (primer) and of products formed after elongation to the end of the template (ext. primer) are shown to the left of the figure. (B) Radioactivity in products longer than 34 nucleotides (rescued primers) from experiments whose results are shown in panel A were quantitated by PhosphorImager analysis, expressed as a percentage of total radioactivity for each lane, and plotted against time. (C) Experiments were performed as described for panel A, except that the ATP concentration was varied from 0.2 to 6.4 mM and the time of incubation (2 to 90 min) was chosen for each RT to allow a maximum of 40% of the primer to be rescued. (D) Rescue experiments were performed as described for panel A, except that 50 μM PP i was used instead of ATP. For panels B, C, and D, the symbols represent data points obtained in a typical experiment with the RTs indicated at the bottom of the figure, and the lines represent the best fit of the data to a hyperbola.
    Escherichia Coli Dna Polymerase I, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 267 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/escherichia coli dna polymerase i/product/Thermo Fisher
    Average 99 stars, based on 267 article reviews
    Price from $9.99 to $1999.99
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    99
    Thermo Fisher dna polymerase i large klenow fragment
    Effect of the W88G mutation on removal of AZTMP from blocked primer-template. (A) AZTMP-terminated [5′- 32 P]L33 primer-WL50 template was incubated with the indicated WT or mutant RT in the absence (−) or presence (+) of 3.2 mM ATP for the indicated times at 37°C. The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with an exonuclease-free Klenow fragment of E. coli <t>DNA</t> polymerase I. The products were separated on a 20% denaturing polyacrylamide gel. The positions of unextended primer (primer) and of products formed after elongation to the end of the template (ext. primer) are shown to the left of the figure. (B) Radioactivity in products longer than 34 nucleotides (rescued primers) from experiments whose results are shown in panel A were quantitated by PhosphorImager analysis, expressed as a percentage of total radioactivity for each lane, and plotted against time. (C) Experiments were performed as described for panel A, except that the ATP concentration was varied from 0.2 to 6.4 mM and the time of incubation (2 to 90 min) was chosen for each RT to allow a maximum of 40% of the primer to be rescued. (D) Rescue experiments were performed as described for panel A, except that 50 μM PP i was used instead of ATP. For panels B, C, and D, the symbols represent data points obtained in a typical experiment with the RTs indicated at the bottom of the figure, and the lines represent the best fit of the data to a hyperbola.
    Dna Polymerase I Large Klenow Fragment, supplied by Thermo Fisher, 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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    99
    Thermo Fisher dntp mix
    Effect of the W88G mutation on removal of AZTMP from blocked primer-template. (A) AZTMP-terminated [5′- 32 P]L33 primer-WL50 template was incubated with the indicated WT or mutant RT in the absence (−) or presence (+) of 3.2 mM ATP for the indicated times at 37°C. The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with an exonuclease-free Klenow fragment of E. coli <t>DNA</t> polymerase I. The products were separated on a 20% denaturing polyacrylamide gel. The positions of unextended primer (primer) and of products formed after elongation to the end of the template (ext. primer) are shown to the left of the figure. (B) Radioactivity in products longer than 34 nucleotides (rescued primers) from experiments whose results are shown in panel A were quantitated by PhosphorImager analysis, expressed as a percentage of total radioactivity for each lane, and plotted against time. (C) Experiments were performed as described for panel A, except that the ATP concentration was varied from 0.2 to 6.4 mM and the time of incubation (2 to 90 min) was chosen for each RT to allow a maximum of 40% of the primer to be rescued. (D) Rescue experiments were performed as described for panel A, except that 50 μM PP i was used instead of ATP. For panels B, C, and D, the symbols represent data points obtained in a typical experiment with the RTs indicated at the bottom of the figure, and the lines represent the best fit of the data to a hyperbola.
    Dntp Mix, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 14684 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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    Thermo Fisher escherichia coli dna polymerase klenow fragment i
    Effect of the W88G mutation on removal of AZTMP from blocked primer-template. (A) AZTMP-terminated [5′- 32 P]L33 primer-WL50 template was incubated with the indicated WT or mutant RT in the absence (−) or presence (+) of 3.2 mM ATP for the indicated times at 37°C. The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with an exonuclease-free Klenow fragment of E. coli <t>DNA</t> polymerase I. The products were separated on a 20% denaturing polyacrylamide gel. The positions of unextended primer (primer) and of products formed after elongation to the end of the template (ext. primer) are shown to the left of the figure. (B) Radioactivity in products longer than 34 nucleotides (rescued primers) from experiments whose results are shown in panel A were quantitated by PhosphorImager analysis, expressed as a percentage of total radioactivity for each lane, and plotted against time. (C) Experiments were performed as described for panel A, except that the ATP concentration was varied from 0.2 to 6.4 mM and the time of incubation (2 to 90 min) was chosen for each RT to allow a maximum of 40% of the primer to be rescued. (D) Rescue experiments were performed as described for panel A, except that 50 μM PP i was used instead of ATP. For panels B, C, and D, the symbols represent data points obtained in a typical experiment with the RTs indicated at the bottom of the figure, and the lines represent the best fit of the data to a hyperbola.
    Escherichia Coli Dna Polymerase Klenow Fragment I, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 99/100, based on 7 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/escherichia coli dna polymerase klenow fragment i/product/Thermo Fisher
    Average 99 stars, based on 7 article reviews
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    escherichia coli dna polymerase klenow fragment i - by Bioz Stars, 2020-09
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    85
    Thermo Fisher eschericcia coli dna pol i
    Effect of the W88G mutation on removal of AZTMP from blocked primer-template. (A) AZTMP-terminated [5′- 32 P]L33 primer-WL50 template was incubated with the indicated WT or mutant RT in the absence (−) or presence (+) of 3.2 mM ATP for the indicated times at 37°C. The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with an exonuclease-free Klenow fragment of E. coli <t>DNA</t> polymerase I. The products were separated on a 20% denaturing polyacrylamide gel. The positions of unextended primer (primer) and of products formed after elongation to the end of the template (ext. primer) are shown to the left of the figure. (B) Radioactivity in products longer than 34 nucleotides (rescued primers) from experiments whose results are shown in panel A were quantitated by PhosphorImager analysis, expressed as a percentage of total radioactivity for each lane, and plotted against time. (C) Experiments were performed as described for panel A, except that the ATP concentration was varied from 0.2 to 6.4 mM and the time of incubation (2 to 90 min) was chosen for each RT to allow a maximum of 40% of the primer to be rescued. (D) Rescue experiments were performed as described for panel A, except that 50 μM PP i was used instead of ATP. For panels B, C, and D, the symbols represent data points obtained in a typical experiment with the RTs indicated at the bottom of the figure, and the lines represent the best fit of the data to a hyperbola.
    Eschericcia Coli Dna Pol I, supplied by Thermo Fisher, used in various techniques. Bioz Stars score: 85/100, based on 9 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
    https://www.bioz.com/result/eschericcia coli dna pol i/product/Thermo Fisher
    Average 85 stars, based on 9 article reviews
    Price from $9.99 to $1999.99
    eschericcia coli dna pol i - by Bioz Stars, 2020-09
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    Image Search Results


    Effect of the W88G mutation on removal of AZTMP from blocked primer-template. (A) AZTMP-terminated [5′- 32 P]L33 primer-WL50 template was incubated with the indicated WT or mutant RT in the absence (−) or presence (+) of 3.2 mM ATP for the indicated times at 37°C. The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with an exonuclease-free Klenow fragment of E. coli DNA polymerase I. The products were separated on a 20% denaturing polyacrylamide gel. The positions of unextended primer (primer) and of products formed after elongation to the end of the template (ext. primer) are shown to the left of the figure. (B) Radioactivity in products longer than 34 nucleotides (rescued primers) from experiments whose results are shown in panel A were quantitated by PhosphorImager analysis, expressed as a percentage of total radioactivity for each lane, and plotted against time. (C) Experiments were performed as described for panel A, except that the ATP concentration was varied from 0.2 to 6.4 mM and the time of incubation (2 to 90 min) was chosen for each RT to allow a maximum of 40% of the primer to be rescued. (D) Rescue experiments were performed as described for panel A, except that 50 μM PP i was used instead of ATP. For panels B, C, and D, the symbols represent data points obtained in a typical experiment with the RTs indicated at the bottom of the figure, and the lines represent the best fit of the data to a hyperbola.

    Journal: Journal of Virology

    Article Title: Relationship between 3?-Azido-3?-Deoxythymidine Resistance and Primer Unblocking Activity in Foscarnet-Resistant Mutants of Human Immunodeficiency Virus Type 1 Reverse Transcriptase

    doi: 10.1128/JVI.77.11.6127-6137.2003

    Figure Lengend Snippet: Effect of the W88G mutation on removal of AZTMP from blocked primer-template. (A) AZTMP-terminated [5′- 32 P]L33 primer-WL50 template was incubated with the indicated WT or mutant RT in the absence (−) or presence (+) of 3.2 mM ATP for the indicated times at 37°C. The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with an exonuclease-free Klenow fragment of E. coli DNA polymerase I. The products were separated on a 20% denaturing polyacrylamide gel. The positions of unextended primer (primer) and of products formed after elongation to the end of the template (ext. primer) are shown to the left of the figure. (B) Radioactivity in products longer than 34 nucleotides (rescued primers) from experiments whose results are shown in panel A were quantitated by PhosphorImager analysis, expressed as a percentage of total radioactivity for each lane, and plotted against time. (C) Experiments were performed as described for panel A, except that the ATP concentration was varied from 0.2 to 6.4 mM and the time of incubation (2 to 90 min) was chosen for each RT to allow a maximum of 40% of the primer to be rescued. (D) Rescue experiments were performed as described for panel A, except that 50 μM PP i was used instead of ATP. For panels B, C, and D, the symbols represent data points obtained in a typical experiment with the RTs indicated at the bottom of the figure, and the lines represent the best fit of the data to a hyperbola.

    Article Snippet: The RT was inactivated by heat treatment, and the unblocked primer was extended by incubation with the exonuclease-free Klenow fragment of Escherichia coli DNA polymerase I (0.3 U; USB Corp.) and all four dNTPs (100 μM each).

    Techniques: Mutagenesis, Incubation, Radioactivity, Concentration Assay

    The full length bicistronic RNA is expressed from the dl VAR vectors. (A) Schematic representation of the experimental procedure to detect the full length bicistronic mRNA showing the primers and the size of the expected amplicons [23] . (B and D) HeLa cells were transfected with 200 ng of the dl HIV-1, dl ΔEMCV, or the different dl VAR plasmids. Total RNA was extracted from transfected cells and quantified. (B) Extracted RNA (3 µg) was used as template in a one-step RT-PCR designed to specifically detect the bicistronic RNAs (lanes 4, 6, 8, 10, 14, and 16). To assay for DNA contamination the same reaction was conducted in the absence of reverse transcriptase (lanes 5, 7, 9, 11, 13, 15, 17). In vitro transcribed dl HIV-1 IRES RNAs (lane 2) and water (lane 3) were included as RT-PCR controls. (C) Schematic representation of the experimental procedure to detect the RLuc-RNA and FLuc-RNA showing the primers and the size of the expected amplicons (D) Total RNA (200 ng) extracted from transfected HeLa cells was used as template in parallel RT-qPCR reactions designed to specifically detect the RLuc or FLuc containing RNAs. The RNA-FLuc concentration (pmol)/RNA-RLuc (pmol) ratio was calculated. Values are the means +/- SEM from three independent experiments (each RNA sample was amplified in three independent reactions).

    Journal: PLoS ONE

    Article Title: Functional and Structural Analysis of the Internal Ribosome Entry Site Present in the mRNA of Natural Variants of the HIV-1

    doi: 10.1371/journal.pone.0035031

    Figure Lengend Snippet: The full length bicistronic RNA is expressed from the dl VAR vectors. (A) Schematic representation of the experimental procedure to detect the full length bicistronic mRNA showing the primers and the size of the expected amplicons [23] . (B and D) HeLa cells were transfected with 200 ng of the dl HIV-1, dl ΔEMCV, or the different dl VAR plasmids. Total RNA was extracted from transfected cells and quantified. (B) Extracted RNA (3 µg) was used as template in a one-step RT-PCR designed to specifically detect the bicistronic RNAs (lanes 4, 6, 8, 10, 14, and 16). To assay for DNA contamination the same reaction was conducted in the absence of reverse transcriptase (lanes 5, 7, 9, 11, 13, 15, 17). In vitro transcribed dl HIV-1 IRES RNAs (lane 2) and water (lane 3) were included as RT-PCR controls. (C) Schematic representation of the experimental procedure to detect the RLuc-RNA and FLuc-RNA showing the primers and the size of the expected amplicons (D) Total RNA (200 ng) extracted from transfected HeLa cells was used as template in parallel RT-qPCR reactions designed to specifically detect the RLuc or FLuc containing RNAs. The RNA-FLuc concentration (pmol)/RNA-RLuc (pmol) ratio was calculated. Values are the means +/- SEM from three independent experiments (each RNA sample was amplified in three independent reactions).

    Article Snippet: To generate plasmids without the SV40 mammalian promoter, the bicistronic vectors were digested with StuI and MluI (Fermentas), treated with the E. coli DNA Polymerase I Klenow fragment (Fermentas) to generate blunt ends, and ligated using T4 DNA ligase (Fermentas).

    Techniques: Transfection, Reverse Transcription Polymerase Chain Reaction, In Vitro, Quantitative RT-PCR, Concentration Assay, Amplification

    Analysis of a promoterless bicistronic construct containing the HIV-1 5′UTR sequences recovered from clinical samples. ( A ) Schematic representation of the bicistronic constructs. The SV40 promoter from dl ΔEMCV (lane 4), dl HIV-1 IRES, or dl VAR was removed to generate the equivalent promoterless (ΔSV40) vectors. ( B ) HeLa cells were transfected with DNA (200 ng) corresponding to the vectors depicted in (A) as previously described [23] . Total DNA was extracted from transfected cells and the presence of the transfected plasmids was confirmed by PCR (upper panel). The dl HIV-1 IRES plasmid (100 ng) was used as an amplification control. Total RNA was extracted from transfected cells and the presence of transcripts for the ΔSV40-dl ΔEMCV, ΔSV40-dl HIV-1 IRES, or the ΔSV40-dl VAR plasmids was evaluated by a one step RT-PCR designed to detect the bicistronic RNA (depicted in Fig. 2B ) [23] . In vitro transcribed RNA (100 ng) generated from plasmids dl HIV-1 IRES (lane 2) were used as amplification controls. ( C ) HeLa cells were transfected with either the 200 ng of SV40 or ΔSV40 version of dl ΔEMCV, dl HIV-1 IRES, or the different dl VAR plasmids as previously described [23] . Cells were processed and RLuc and FLuc activities were measured. For each data point the [RLuc/(total protein)] (left panel) and the [FLuc/(total protein)] (right panel) for the SV40 positive plasmids was arbitrary set to 100%. Values are the means +/- SD from three independent experiments.

    Journal: PLoS ONE

    Article Title: Functional and Structural Analysis of the Internal Ribosome Entry Site Present in the mRNA of Natural Variants of the HIV-1

    doi: 10.1371/journal.pone.0035031

    Figure Lengend Snippet: Analysis of a promoterless bicistronic construct containing the HIV-1 5′UTR sequences recovered from clinical samples. ( A ) Schematic representation of the bicistronic constructs. The SV40 promoter from dl ΔEMCV (lane 4), dl HIV-1 IRES, or dl VAR was removed to generate the equivalent promoterless (ΔSV40) vectors. ( B ) HeLa cells were transfected with DNA (200 ng) corresponding to the vectors depicted in (A) as previously described [23] . Total DNA was extracted from transfected cells and the presence of the transfected plasmids was confirmed by PCR (upper panel). The dl HIV-1 IRES plasmid (100 ng) was used as an amplification control. Total RNA was extracted from transfected cells and the presence of transcripts for the ΔSV40-dl ΔEMCV, ΔSV40-dl HIV-1 IRES, or the ΔSV40-dl VAR plasmids was evaluated by a one step RT-PCR designed to detect the bicistronic RNA (depicted in Fig. 2B ) [23] . In vitro transcribed RNA (100 ng) generated from plasmids dl HIV-1 IRES (lane 2) were used as amplification controls. ( C ) HeLa cells were transfected with either the 200 ng of SV40 or ΔSV40 version of dl ΔEMCV, dl HIV-1 IRES, or the different dl VAR plasmids as previously described [23] . Cells were processed and RLuc and FLuc activities were measured. For each data point the [RLuc/(total protein)] (left panel) and the [FLuc/(total protein)] (right panel) for the SV40 positive plasmids was arbitrary set to 100%. Values are the means +/- SD from three independent experiments.

    Article Snippet: To generate plasmids without the SV40 mammalian promoter, the bicistronic vectors were digested with StuI and MluI (Fermentas), treated with the E. coli DNA Polymerase I Klenow fragment (Fermentas) to generate blunt ends, and ligated using T4 DNA ligase (Fermentas).

    Techniques: Construct, Transfection, Polymerase Chain Reaction, Plasmid Preparation, Amplification, Reverse Transcription Polymerase Chain Reaction, In Vitro, Generated

    Nicking enzyme-mediated labeling of open chromatin. a Nicking of crosslinked chromatin using varying amounts of Nt.CviPII. A 1% agarose gel showing differential nicking of HCT116 genomic DNA based on amount of nicking enzyme (10 U, 5 U, 2.5 U, 1 U, 0.3 U, 0 U). M is a DNA molecular weight ladder. b Open chromatin labeling in fixed HeLa cells using dNTPs supplemented with TexasRed-dATP. Top panel : labeling reaction performed in the presence of Nt.CviPII and DNA polymerase I. Middle panel : labeling reaction performed in the presence of DNA polymerase I only. Bottom panel : labeling reaction performed in the absence of Nt.CviPII and DNA polymerase I. TexasRed-dATP was included in all reactions. DNA staining was performed using DAPI ( blue ) and TexasRed stain ( red ) represents labeled OCSs. Magenta stain ( Merge ) represents the colocalization. c Labeling efficiency of OCSs in all three assayed conditions. The y-axis represents the ratio of the intensity of the red pixels to the intensity of the blue pixels ( OCS labeling efficiency ). d Dot blot showing labeling of open chromatin by Nt.CviPII nicking enzyme in both native and formaldehyde-fixed HCT116 cells. The level of labeling was revealed using HRP-conjugated goat anti-biotin antibody

    Journal: Genome Biology

    Article Title: NicE-seq: high resolution open chromatin profiling

    doi: 10.1186/s13059-017-1247-6

    Figure Lengend Snippet: Nicking enzyme-mediated labeling of open chromatin. a Nicking of crosslinked chromatin using varying amounts of Nt.CviPII. A 1% agarose gel showing differential nicking of HCT116 genomic DNA based on amount of nicking enzyme (10 U, 5 U, 2.5 U, 1 U, 0.3 U, 0 U). M is a DNA molecular weight ladder. b Open chromatin labeling in fixed HeLa cells using dNTPs supplemented with TexasRed-dATP. Top panel : labeling reaction performed in the presence of Nt.CviPII and DNA polymerase I. Middle panel : labeling reaction performed in the presence of DNA polymerase I only. Bottom panel : labeling reaction performed in the absence of Nt.CviPII and DNA polymerase I. TexasRed-dATP was included in all reactions. DNA staining was performed using DAPI ( blue ) and TexasRed stain ( red ) represents labeled OCSs. Magenta stain ( Merge ) represents the colocalization. c Labeling efficiency of OCSs in all three assayed conditions. The y-axis represents the ratio of the intensity of the red pixels to the intensity of the blue pixels ( OCS labeling efficiency ). d Dot blot showing labeling of open chromatin by Nt.CviPII nicking enzyme in both native and formaldehyde-fixed HCT116 cells. The level of labeling was revealed using HRP-conjugated goat anti-biotin antibody

    Article Snippet: Open chromatin DNA was labeled with biotin by incubating the nuclei in the presence of 2.5 U of Nt.CviPII (NEB R0626S), 10 U of DNA polymerase I (M0209S) and 30 μM of each dNTP including 6 μM of biotin-14-dATP (Invitrogen, 19524-016) and 6 μM of biotin-16-dCTP (ChemCyte, CC-6003-1) in 200 μL of 1× NEB buffer 2.

    Techniques: Labeling, Agarose Gel Electrophoresis, Molecular Weight, Staining, Dot Blot