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SALP, a new NGS library construction method especially useful for the high-throughput characterization of chromatin openness states

ABSTRACT: SALP, a new NGS library construction method especially useful for the high-throughput characterization of chromatin openness states

PROVIDER: PRJNA411840 | ENA |

REPOSITORIES: ENA

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			Action	DRS
	SRR6061630_1.fastq.gz	Fastqsanger.gz
	SRR6061630_2.fastq.gz	Fastqsanger.gz
	SRR6061631_1.fastq.gz	Fastqsanger.gz
	SRR6061631_2.fastq.gz	Fastqsanger.gz
	SRR6061632_1.fastq.gz	Fastqsanger.gz

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SALP, a new NGS library construction method especially useful for the high-throughput characterization of chromatin openness states

Project description:Background: Next-generation sequencing (NGS) is fundamental to the current biological and biomedical research. Construction of sequencing library is a key step of NGS. Therefore, various library construction methods have been explored. However, the current methods are still limited by some shortcomings. Results: This study developed a new NGS library construction method, Single strand Adaptor Library Preparation (SALP), by using a novel single strand adaptor (SSA). SSA is a double-stranded oligonucleotide with a 3ʹ overhang of 3 random nucleotides, which can be efficiently ligated to the 3′ end of single strand DNA by T4 DNA ligase. SALP can be started with any denatured DNA fragments such as those sheared by Tn5 tagmentation, enzyme digestion and sonication. When started with Tn5-tagmented chromatin, SALP can overcome a key limitation of ATAC-seq and become a high-throughput NGS library construction method, SALP-seq, which can be used to comparatively characterize the chromatin openness state of multiple cells unbiasly. In this way, this study successfully characterized the comparative chromatin openness states of four different cell lines, including GM12878, HepG2, HeLa and 293T, with SALP-seq. Similarly, this study also successfully characterized the chromatin openness states of HepG2 cells with SALP-seq by using 105 to 500 cells. Conclusions: This study developed a new NGS library construction method, SALP, by using a novel kind of single strand adaptor (SSA), which should has wide applications in the future due to its unique performance.

2018-01-31 | GSE104162 | GEO

TELP, a sensitive and versatile library construction method for next-generation sequencing

Project description:Next-generation sequencing has been widely used for the genome-wide profiling of histone modifications, transcription factor binding and gene expression through chromatin immunoprecipitated DNA sequencing (ChIP-seq) and cDNA sequencing (RNA-seq). Here, we describe a versatile library construction method that can be applied to both ChIP-seq and RNA-seq on the widely used Illumina platforms. Standard methods for ChIP-seq library construction require nanograms of starting DNA, substantially limiting its application to rare cell types or limited clinical samples. By minimizing the DNA purification steps that cause major sample loss, our method achieved a high sensitivity in ChIP-seq library preparation. Using this method, we achieved the following: (1) generated high-quality epigenomic and transcription factor-binding maps using ChIP-seq for murine adipocytes; (2) successfully prepared a ChIP-seq library from as little as 25 pg of starting DNA; (3) achieved paired-end sequencing of the ChIP-seq libraries; (4) systematically profiled gene expression dynamics during murine adipogenesis using RNA-seq; and (5) preserved the strand specificity of the transcripts in RNA-seq. Given its sensitivity and versatility in both double-stranded and single-stranded DNA library construction, this method has wide applications in genomic, epigenomic, transcriptomic and interactomic studies. Pre-adipocytes and mature adipocytes were collected. Their chromatin and RNA were subjected to ChIP and mRNA extraction. Sequencing libraries from ChIP DNA or mRNA were generated following either standard protocols or TELP method. The quality and features of TELP libraries were proved and demonstrated in comparison with standard libraries or other published data.

2015-12-15 | E-GEOD-75966 | biostudies-arrayexpress

MobiChIP: a compatible library construction method of single-cell ChIP-seq based droplets

Project description:In order to illustrate the epigenetic heterogeneity, versatile tools of single-cell ChIP-seq(scChIP-seq) are necessary to meet the convenience and accuracy. Here, we develop MobiChIP, a compatible ChIP-seq library construction method based current sequencing platform with single cell level. As a novel capture strategy, MobiChIP is efficient to capture the fragments from tagmented nuclei of numerous species and execute the mixing of samples from different tissues or species. Especially, this strategy enables the flexible sequencing manipulation and sufficient nucleosome amplification without customized sequencing primers. MobiChIP reveals the landscape of chromatin regulation regions with active(H3K27ac) and repressive(H3K27me3) histone modification markers in peripheral blood mononuclear cells (PBMCs), and accurately unveiled the epigenetic repression of hox gene cluster in PBMCs than ATAC-seq. Meanwhile, we complete the bioinformatics pipeline to integrate the scChIP-seq and scRNA-seq data to illustrate the cellular epigenetic and genetic heterogeneity.

2024-10-27 | GSE273350 | GEO

TELP, a sensitive and versatile library construction method for next-generation sequencing

2015-12-15 | GSE75966 | GEO

SALP, a new single-stranded DNA library preparation method especially useful for the high-throughput characterization of chromatin openness states.

Project description:BackgroundNext-generation sequencing (NGS) is fundamental to the current biological and biomedical research. Construction of sequencing library is a key step of NGS. Therefore, various library construction methods have been explored. However, the current methods are still limited by some shortcomings.ResultsThis study developed a new NGS library construction method, Single strand Adaptor Library Preparation (SALP), by using a novel single strand adaptor (SSA). SSA is a double-stranded oligonucleotide with a 3' overhang of 3 random nucleotides, which can be efficiently ligated to the 3' end of single strand DNA by T4 DNA ligase. SALP can be started with any denatured DNA fragments such as those sheared by Tn5 tagmentation, enzyme digestion and sonication. When started with Tn5-tagmented chromatin, SALP can overcome a key limitation of ATAC-seq and become a high-throughput NGS library construction method, SALP-seq, which can be used to comparatively characterize the chromatin openness state of multiple cells unbiasly. In this way, this study successfully characterized the comparative chromatin openness states of four different cell lines, including GM12878, HepG2, HeLa and 293T, with SALP-seq. Similarly, this study also successfully characterized the chromatin openness states of HepG2 cells with SALP-seq by using 105 to 500 cells.ConclusionsThis study developed a new NGS library construction method, SALP, by using a novel kind of single strand adaptor (SSA), which should has wide applications in the future due to its unique performance.

| S-EPMC5811972 | biostudies-literature

Correction to: SALP, a new single-stranded DNA library preparation method especially useful for the high-throughput characterization of chromatin openness states.

Project description:After publication of the original article [1] the authors noted that the additional files had not been uploaded correctly.

| S-EPMC5935957 | biostudies-literature

Low-input Hi-C library construction

Project description:Low-input Hi-C library construction

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A Cost-effective Method of Mate-pair Library Construction with Controlled Polymerization

Project description:A Cost-effective Method of Mate-pair Library Construction with Controlled Polymerization

| PRJEB28073 | ENA

RNA-seq comparison: before/after MARIS protocol and library construction technique test

Project description:The aim of this experiment was to determine the amount of RNA-seq signal degradation that results from MARIS and to test how well 4 different RNA-seq library construction techniques perform on partially degraded RNA.

2015-03-19 | E-MTAB-3424 | biostudies-arrayexpress

MobiChIP: a compatible library construction method of single-cell ChIP-seq based droplets

Project description:MobiChIP: a compatible library construction method of single-cell ChIP-seq based droplets

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