Evidence map›Paper›PMID 24564479›Full record

ArticleBMC genomics2013

QChIPat: a quantitative method to identify distinct binding patterns for two biological ChIP-seq samples in different experimental conditions.

Bin Liu, Jimmy Yi, Aishwarya Sv, Xun Lan, Yilin Ma, Tim H M Huang, Gustavo Leone, Victor X Jin

Abstract readComparative Study
In one paragraph

Article in BMC genomics, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

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3 · Its place in the literature

Who cites it

24 citing papers in PubMed.

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  6. A physical basis for quantitative ChIP-sequencing.The Journal of biological chemistry · 2020
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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

8 authors.

Bin Liu
Jimmy Yi
Aishwarya Sv
Xun Lan
Yilin Ma
Tim H M Huang
Gustavo Leone
Victor X Jin

Funding

Predicting Drug Resistance in Cancer Genomes by DMA Methylation ProfilingU54CA113001 · NCI · UNIVERSITY OF TEXAS HLTH SCIENCE CENTER · PI HUANG, TIM H.-M. · 2004 to 2014
$16.1M
Suppression of Mammary Tumorigenesis by Stromal p53P01CA097189 · NCI · OHIO STATE UNIVERSITY · PI FERNANDEZ, SOLEDAD A · 2004 to 2016
$16.1M
NCI NIH HHS P01 CA097189NCI NIH HHS U54 CA113001
6 · The paper itself

Abstract

backgroundMany computational programs have been developed to identify enriched regions for a single biological ChIP-seq sample. Given that many biological questions are often asked to compare the difference between two different conditions, it is important to develop new programs that address the comparison of two biological ChIP-seq samples. Despite several programs designed to address this question, these programs suffer from some drawbacks, such as inability to distinguish whether the identified differential enriched regions are indeed significantly enriched, lack of distinguishing binding patterns, and neglect of the normalization between samples.

resultsIn this study, we developed a novel quantitative method for comparing two biological ChIP-seq samples, called QChIPat. Our method employs a new global normalization method: nonparametric empirical Bayes (NEB) correction normalization, utilizes pre-defined enriched regions identified from single-sample peak calling programs, uses statistical methods to define differential enriched regions, then defines binding (histone modification) pattern information for those differential enriched regions. Our program was tested on a benchmark data: histone modifications data used by ChIPDiffs. It was then applied on two study cases: one to identify differential histone modification sites for ChIP-seq of H3K27me3 and H3K9me2 data in AKT1-transfected MCF10A cells; the other to identify differential binding sites for ChIP-seq of TCF7L2 data in MCF7 and PANC1 cells.

conclusionsSeveral advantages of our program include: 1) it considers a control (or input) experiment; 2) it incorporates a novel global normalization strategy: nonparametric empirical Bayes correction normalization; 3) it provides the binding pattern information among different enriched regions. QChIPat is implemented in R, Perl and C++, and has been tested under Linux. The R package is available at http://motif.bmi.ohio-state.edu/QChIPat.

Indexed as

Models, StatisticalAlgorithmsBayes TheoremCell LineChromatin ImmunoprecipitationComputational BiologyHistonesHumansMarkov ChainsMCF-7 CellsSequence Analysis, DNASoftwareTranscription Factor 7-Like 2 ProteinHistonesTCF7L2 protein, humanTranscription Factor 7-Like 2 Protein

Identifiers

PMID24564479
PMCPMC4042236

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LicenceCC BY
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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.