More posts like this
-
how to define cis regulatory elements using histone modifications ChIPseq
written by BenHu •Hello, I have some questions about Histone modifications ChIPseq. 1: why are H3K27ac peaks broad? 2: People use H3K27ac or H3K4me1 peaks to define enhancers. …
-
What is the difference between tissues and cell lines in ENCODE>
written by burcakotlu •I want to download histone modifications and transcription factor binding sites data from ENCODE. In this link below: https://www.encodeproject.org/matrix/?type=Experiment&status=released There are tissues and cell lines, …
-
Getting hints on protein function by correlating its ChIP-seq peaks with public datasets?
written by bsksln •Hi, First of all, my apology that the question might be a little confusing. I'll try to explain. I did a ChIP-seq experiment on a …
-
Low input ChIP-seq on frozen tissue
written by evakoole •Dear all, Currently I am working on a project to find the most optimal protocol for doing ChIP-seq on frozen tissues. Most protocols are designed …
-
regulation of protein expression
written by PappuI am trying to find find out which transcription factors, ncRNAs, epigenetic modifications, alternative splicing etc might influence the expression of a protein highly expressed …
-
Find transcription factors that bind to inputted nucleotide sequence?
written by randalljellisHello, Is there a tool where you input a nucleotide sequence, and the tool outputs which transcription factors bind to that sequence? Thank you
-
Finding histone modification enrichment specific loci using modENCODE data
written by dr_bantzPosted this on SEQanswers but no luck so far... I have a list of interesting genomc regions (intergenic regions, a few 100 bases long) and …
-
Plot of intergenomic distances between all bound TF sites?
written by bede.portzI would like to plot the distance between all pairs of peaks/bound locations for a specific transcription factor. In other words, generate a histogram of …
-
Blog: Live Webinar on 26 Aug: Calling Narrow and Broad Peaks from ChIP-Seq data
written by Genomics**Live webinar on Calling Narrow and Broad Peaks from ChIP-Seq data on 26 Aug 2015** **Abstract** Chromatin immunoprecipitation (ChIP) followed by high throughput sequencing (ChIP-Seq) …
-
Chip-sequencing of histone modifications
written by AffanComing from a non-bio background, this stuff can get confusing to me. Some time ago I asked about [what chip-seq is when applied to TFs][1] …
This question doesn't make sense as written. Can you clarify? Histones can be modified in a number of ways (a distribution of ways perhaps). And then there are transcription factors, which can be covalently modified, but aren't typically thought of in this regard. Histones and Transcription Factors and the modifications each may undergo are separate entities. What are you trying to achieve? What are you trying to figure out? What would your plot consist of? What question would it address?
Dear seidel,
Thanks for your reply. I have a bed file of H3K4me1 and a bed file of MCM2, I would like to plot the H3K4me1 enrichment on MCM2 as shown in the image below. The abscissa represents the coordinates of the MCM2. I used a simple Python script to handle it, but the running time was extremely slow because of the huge data, so I wanted to ask if there was a better way to do this thing. Thank you very much. Sincerely.
deepTools plotProfile (or plotHeatmap which also adds detailed heatmaps) can be used to plot those enrichment profiles you are referring to. (https://deeptools.readthedocs.io/en/develop/content/tools/plotProfile.html)
However, your bed files won't provide enough information for that, as they only contain the genomic location and average enrichment of (probably) peaks of H3K4me1 and MCM2 and no detailed, binned enrichment values. You would have to run deepTools computeMatrix prior to plotProfile, which requires bigWigs with the signal of your histone modification and transcription factor besides bed files specifying the genomic regions.
Hi lily, Thank you so much.
Deeptool is a really powerful tool. I'm going to learn how to use it.
Thanks again.