plvx lentiviral backbone Search Results


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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
Third Generation Lentiviral Backbone, supplied by Addgene inc, used in various techniques. Bioz Stars score: 95/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
Paper N A Pet28b 6x His Ulp1403 621 Steven Markus N A Plv Egfp Lentiviral Backbone, supplied by Addgene inc, used in various techniques. Bioz Stars score: 95/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for <t>lentiviral</t> delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.
Plv Ef1a Ires Hygro Lentiviral Backbone, supplied by Addgene inc, used in various techniques. Bioz Stars score: 94/100, based on 1 PubMed citations. ZERO BIAS - scores, article reviews, protocol conditions and more
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Image Search Results


(A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for lentiviral delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.

Journal: bioRxiv

Article Title: Genome-wide annotation of gene regulatory elements linked to cell fitness

doi: 10.1101/2021.03.08.434470

Figure Lengend Snippet: (A) Overall schematic of (i) discovery wgCERES screen, (ii) secondary validation screen of regulatory elements, (iii) cell-type specificity, and (iv) single-cell (scCERES) readout to connect cell fitness-associated regulatory elements to target genes. (B) A schematic of wgCERES approach. gRNAs are designed to all DHSs in the K562 cell line and synthesized as a pool for lentiviral delivery. K562 cells either constitutively expressing or not expressing dCas9 KRAB are treated with the lentiviral gRNA library at a low MOI and cultured for 14 population doublings. Genomic DNA is then harvested and the gRNA abundance is quantified by Illumina sequencing. (C) A schematic describing four levels of gRNA grouping analyses, including individual gRNA, sliding windows of 2 or 3 gRNAs, and averaging all gRNAs within a DHS. (D) Summary of DHS hits identified by significant changes to individual gRNAs or grouped gRNAs. (E) Volcano plot of significance of gRNA changes relative to log2(fold-change). (F) Distribution of significant gRNAs relative to transcriptional start sites of nearest genes. (G) Representative examples of significant distal DHS hits (blue boxes) that also have a significant DHS hit at a TSS of the nearest gene. ChromHMM tracks indicate promoters (red), putative enhancers (yellow), and polycomb repressed regions (gray). (H) UMAP dimensionality reduction plot showing different ChromHMM chromatin state informed classes of significant (FDR < 0.1) DHS hits. Histone modifications as well as several epigenetic modifying proteins were included as input for dimensionality reduction. (I) Relative abundances of significantly depleted or enriched gRNAs relative to ChromHMM classes of genome annotations.

Article Snippet: The lentiviral Grna expression plasmid was cloned by combining a U6-gRNA cassette containing the gRNA-(F+E)-combined scaffold sequence ( ) with an EGFP-P2A-PAC or mCherry-P2A-PAC cassette into a lentiviral expression backbone (Addgene #83925) using Gibson assembly.

Techniques: Biomarker Discovery, Synthesized, Expressing, Cell Culture, Illumina Sequencing