Browse
Submit Data
Databases
API
Help

Dataset Information

0 Views

0 Connections

0 Citations

0 Reanalyses

0 Downloads

Omics score: 0

Genome-wide determinants of Tn5 insertion preference

ABSTRACT: We generated Tn5 segmentation data on naked genomic DNA to explore the intrinsic Tn5 insertion preference along the whole genome

ORGANISM(S): Mus musculus Homo sapiens

PROVIDER: GSE164997 | GEO | 2021/10/01

REPOSITORIES: GEO

ACCESS DATA

Json Xml

Shared Molecules

Only show the datasets with similarity scores above: 0.5

Threshold

0.5

Similar Datasets

Genome-wide determinants of Tn5 insertion preference

Project description:Genome-wide determinants of Tn5 insertion preference

| PRJNA692745 | ENA

Tn5 insertion in S.meliloti

Project description:Tn5 insertion in S.meliloti

| PRJEB60399 | ENA

Long-read analysis of Tn5 insertion patterns

Project description:Long-read analysis of Tn5 insertion patterns

| PRJEB77663 | ENA

Long-read analysis of Tn5 insertion patterns

Project description:To be able to study where Tn5 inserts among repeat sequences of the genome, ATAC-seq was performed using a custom insert. The resulting DNA was then mechanically sheared and sequenced using PacBio

2024-07-19 | E-MTAB-14238 | biostudies-arrayexpress

Tn5 transposase and tagmentation procedures for massively scaled sequencing projects

Project description:Massively parallel DNA sequencing of thousands of samples in a single machine-run is now possible, but the preparation of the individual sequencing libraries is expensive and time-consuming. Tagmentation-based library construction, using the Tn5 transposase, is efficient for generating sequencing libraries but currently relies on undisclosed reagents, which severely limits development of novel applications and the execution of large scale projects. Here, we present simple and robust procedures for Tn5 transposase production and optimized reaction conditions for tagmentation-based sequencing library construction. We further show how molecular crowding agents both modulate library lengths and enable efficient tagmentation from sub-picogram amounts of cDNA. Comparison of single-cell RNA-sequencing libraries generated using produced and commercial Tn5 demonstrated equal performances in terms of gene detection and library characteristics. Finally, as naked Tn5 can be annealed to any oligonucleotide of choice, for example molecular barcodes in single-cell assays or methylated oligonucleotides for bisulfite sequencing, custom Tn5 production and tagmentation enables innovation in sequencing-based applications.

2014-07-14 | GSE58652 | GEO

Comprehensive understanding of Tn5 insertion preference improves transcription regulatory element identification.

Project description:Tn5 transposase, which can efficiently tagment the genome, has been widely adopted as a molecular tool in next-generation sequencing, from short-read sequencing to more complex methods such as assay for transposase-accessible chromatin using sequencing (ATAC-seq). Here, we systematically map Tn5 insertion characteristics across several model organisms, finding critical parameters that affect its insertion. On naked genomic DNA, we found that Tn5 insertion is not uniformly distributed or random. To uncover drivers of these biases, we used a machine learning framework, which revealed that DNA shape cooperatively works with DNA motif to affect Tn5 insertion preference. These intrinsic insertion preferences can be modeled using nucleotide dependence information from DNA sequences, and we developed a computational pipeline to correct for these biases in ATAC-seq data. Using our pipeline, we show that bias correction improves the overall performance of ATAC-seq peak detection, recovering many potential false-negative peaks. Furthermore, we found that these peaks are bound by transcription factors, underscoring the biological relevance of capturing this additional information. These findings highlight the benefits of an improved understanding and precise correction of Tn5 insertion preference.

| S-EPMC8557372 | biostudies-literature

Biochemical analysis of chromatin targeting by Tn5 transposase

Project description:Tn5 transposase is used as a tool for detecting nucleosome-free regions of genomic DNA in eukaryotes, but its DNA target site in chromatin has not been understood. In the present study, the well-positioned dinucleosomes were reconstituted, and the Tn5 transposase target sites were mapped in the dinucleosomes in vitro. We found that Tn5 transposase preferentially targets near the entry-exit DNA region within the nucleosome, if the linker DNA exists between two nucleosomes. This specific DNA targeting by Tn5 did not depend on the linker DNA length and DNA sequence. Tn5 transposase becomes to target the middle of the linker DNA, in addition to the entry-exit site of the nucleosome, if the linker DNA length extends to 30 base pairs. These in vitro data provide direct evidence for the Tn5 target sites in the nucleosome, resulting important information for interpretation of the Tn5-transposase-based genomics methods, which have been interpreted as linker or nucleosome-free DNA regions in genomes.

2019-09-18 | GSE130322 | GEO

Tn5 tagments and transports oligos to single-strand DNA for high throughput sequencing

Project description:Tn5 transposon tagments double-strand DNA and RNA/DNA hybrid to generate nucleic acids ready to be amplified for high throughput sequencing. The nucleic acid substrates of Tn5 transposon need to be explored to increase the applications of Tn5. Here, we find that Tn5 transposon is able to transport oligos into the 5’ end of single-strand DNA, which are more than 140 base pairs of nucleic acids. Based on this property of Tn5, we develop a tagmentation-based and ligation-enabled single-strand DNA sequencing method, TABLE-seq. Through a series of reaction temperature, time, and enzyme concentration tests, we managed to apply this TABLE-seq to strand-specific RNA sequencing, starting with as low as 30 picograms of total RNA. Moreover, compared with traditional dUTP based strand-specific RNA sequencing, this method detects more genes, has higher strand-specificity, and shows more evenly distributed reads across genes. Together, our results provide insights into the properties of Tn5 transposons and expand the applications of Tn5 in cutting-edge sequencing techniques.

2023-01-30 | GSE208316 | GEO

TuMV insertion

Project description:Turnip mosaic virus insertion rate

| PRJEB9490 | ENA

Evaluation of Tn5 protein fusions suitable for GET-seq

Project description:This experiment includes the sequencing files for different hp1a-tn5 hybrids, together with standard ATAC-seq and ChIP-seq data used to evaluate the best construct.

2021-08-17 | E-MTAB-9648 | biostudies-arrayexpress

OmicsDI is part of the ELIXIR infrastructure

OmicsDI is an Elixir interoperability service. Learn more ›

Tweets

OmicsDI Databases

PRIDE
PeptideAtlas
MassIVE
JPOST Repository
Physiome Model Repository

EGA
EVA
ENA
LINCS
PAXDB
Cell Collective

MetaboLights
Metabolomics Workbench
MetabolomeExpress
GNPS
BioModels
FAIRDOMHub

ArrayExpress
dbGaP
ExpressionAtlas
GEO
NODE

Information

Databases
Help
API
Contact us
Code on GitHub
Terms of use
Submit Data