Questions tagged [macs2]

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Methods to analyze MeDIP-seq data

I have MeDIP-seq data. I have 6 groups with 15 replicates and a total of 90 human samples. I am trying to choose the best method to analyze them. I would highly appreciate if you can give me your ...
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2answers
26 views

Separating peaks of chip-seq with specific length

My data contain several chip-seq results. I have the peaks called by MACS2.I wanted to only look at those peaks that their size is e.g 500bp to 1000bp. How can I separate those peaks efficiently? I ...
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36 views

differential analysis of chip-seq data

I have several sets of chip-seq data. I called the peaks using Macs2. I am pretty new to the field and I will appreciate any help. I wanted to annotate the peaks and see which peaks are shared between ...
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16 views

How to calculate overlapping between different chip-seq peaks

I have 3 sets of data for peaks called by Macs2 as below: 1-DNA methylation 2-Chip-seq (repression marks) 3-Chip-seq (activation marks) I need to show how many peaks in DNA methylation have the same ...
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41 views

How to make Venn diagram for the Macs peak calling output of two data sets?

I have two outputs of macs2 peak calling for two of my data sets. I wanted to plot the Venn diagram to see how many peaks are shared. I mainly work on Unix/Linux. Do you know any way that I can have ...
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222 views

merging two/or more bed file into one bed file

I am trying to merge two bed files (more in future) to one. my bed files are something like : . I need to merge them in a way to have the shared chromosome location. Is there a way to do that ?
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1answer
60 views

How to get the intersection of peaks after peak calling using MACS2?

I have following 5 narrow peak files after peak calling. K14_peaks.narrowPeak K15_peaks.narrowPeak K16_peaks.narrowPeak K3_peaks.narrowPeak K8_peaks.narrowPeak I ...
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32 views

gnu parallel for macs peak calling

These are the list of files ...
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1answer
31 views

When running ChIPQC bioconductor package after peak calling, should I use sorted BAM files or unsorted BAM files?

I have called peaks using MACS2 and now I'm trying to run ChIPQC bioconductor package. Can someone please tell me should I use sorted BAM files or unsorted BAM files? I have created sorted BAM files ...
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1answer
230 views

How to visualize called narrowPeak files in UCSC Genome browser or IGV?

I have called peaks using MACS2. Then I got a narrowPeak file like this. ...
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22 views

How to decide the parameters and parameter values when running ChIP-seq Peak Calling for H3K27ac data in MACS?

I have alignment data in SAM files from ChIP-seq analysis for H3K27ac mark. I need to call peaks using MACS2. But I'm having issues with selecting parameters and values of the parameters. I will be ...
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66 views

ATAC-seq macs2 peak splitting in sliding windows

I used macs2 to call peaks for atac-seq data. now my goal is to split the peaks into 50 bp windows with 25 bp steps and then calculate the Tn5 integration frequency in each window. How should I ...
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1answer
336 views

Convert paired-end BAM into a single-end BAM and keep all the reads

I want to call peaks using MACS2 on my paired-end ATAC-seq BAM and I am interested in cutting sites. So I make use of the -BAM option (opposed to the -BAMPE) option. However this throws away all the ...
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242 views

Biological replicates on Chip-seq Transcription factor data

I have 2 biological replicates for chip-seq transcription factor data and I have applied macs2 peak calling for each replicate separately. How can i make use of the biological replicates to extract ...
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1answer
76 views

Score predefined ChIP-seq peaks with MACS2 or equivalent

I have performed peak calling on a number of separate ChIP-seq experiments and would like to harmonise the peaks from each of the experiments in order to convert my data into a matrix for further ...