Hello Mary, members of the list:

Well, I would like to do some alignments on the different promoters of
different species. 
I am running a phylogenetic foot-printing technique and I want to have
as many genes from different species as possible. 

>From what I could gather from the mailing list, xenoRefFlat consists of
other genes from other species aligned into the organism. This would
give me a larger list of genes because some organisms only have 1000+
gene annotations in refFlat. Do you think using xenoRefFlat for this
purpose makes sense?

Regards,

Arnoldo Muller

On Tue, 2010-10-05 at 15:51 -0700, Mary Goldman wrote:
> Hi Arnoldo,
> 
> The answer to your question depends on what you are going to use the data 
> for. Please keep in mind that the UCSC Genome Browser simply displays data; 
> it does not say what is or is not acceptable analysis of this data.
> 
> Please feel free to contact the mail list again if you require further 
> assistance.
> 
> Best,
> Mary
> ------------------
> Mary Goldman
> UCSC Bioinformatics Group
> 
> ----- Original Message -----
> From: "Arnoldo Jose Muller-Molina" <[email protected]>
> To: [email protected]
> Sent: Tuesday, October 5, 2010 1:31:56 PM GMT -08:00 US/Canada Pacific
> Subject: [Genome] About xenorefflat
> 
> Hello!
> 
> I would like to extract promoter regions of various sizes from different
> vertebrates. I am aware that you provide the upstreamXXXX.fa.gz files
> but I would like to have them repeatmasked. 
> 
> I decided to extract my data directly from the chromosomes using
> refFlat.txt files. I have noticed that some organisms have a small
> number of entries. Some organisms like the Panda do not have refFlat.txt
> at all. Would it be safe to approximate promoter regions with
> xenoRefFlat? 
> 
> Regards,
> 


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