Hi UCSC genome browser's technical group,
I am Charlie and I recently used UCSC genome browser to try to visualize
our ChIP sequencing data, and then I've encountered some problems. We used
the ht-seq R package that developed by UC Riverside to do the analysis,
and then output the analysis to a WIG file output. By carefully going
through the WIG file format the UCSC genome browser supports, I think the
output WIG file we have is supported by the browser. However, when I
uploaded the this WIG file to custom track, it doesn't show out any peaks
on the genome browser, even though the "score" is in the WIG file.

Interestingly, when I excerpt part of my WIG file (ex. I excerpt first
10,000 line), then the peaks display just fine.

The following address is our WIG files:
full file:
http://radbio.lbl.gov:8080/ChIP/input_chr1.wig
excerpt file:
http://radbio.lbl.gov:8080/ChIP/input_chr1_part.wig

Our WIG file is generated from the output of ht-seq package (in R)
analysis, and the raw data is aligned by Bowtie with UCSC reference genome
of hg18.

Thanks for your help!

-Charlie-

_______________________________________________
Genome maillist  -  [email protected]
https://lists.soe.ucsc.edu/mailman/listinfo/genome

Reply via email to