Good Afternoon Graham:

You can pick up the original files with the phyloP scores at:
  http://hgdownload.cse.ucsc.edu/goldenPath/hg19/phyloP46way/

These are the simple ASCII files before they are converted
into compressed binary format to be used in the genome
browser.  You can use the binary format files too if
that is convenient, please note:
  http://genomewiki.ucsc.edu/index.php/Using_hgWiggle_without_a_database

I don't know if these are the numbers you are referring to, but these
are the positive/negative actual phyloP calculated numbers.

--Hiram

----- Original Message -----
From: "Graham Bignell" <[email protected]>
To: [email protected]
Sent: Thursday, May 17, 2012 7:45:51 AM
Subject: [Genome] PhyloP plots in the UCSC browser

Dear Jennifer,

 

I am very interested in using the phyloP data from the UCSC genome
browser as a way of assigning significance to putative somatic variants
for a series of unmatched samples for which we have exome sequence data.


 

I have downloaded the phyloP data from you ftp server for both the
placental mammels and all vertebrate alignments, and have also looked
through the paper cited on your web page (Detection of nonneutral
substitution rates on mammalian phylogenies, Pollard-K et al).

 

In the supplementary information associated with the paper there is a
section on 'estimation of neutral model' which describes how the base
level P-value data available from your FTP site was converted into the
data presented in your browser track showing positive and negative
scores (indicating conserved and vast evolving residues respectively).
However, the conversion is going to difficult for me to apply!

 

Do you have or could you possibly produce,  a file that I can access
which gives the base level values converted as described above and as
presented in your browser, or possibly a script that allows me to do the
relevant conversion to the files I have downloaded?

 

I am sorry to have to approach you in this regard, I am associated with
extensive amounts of data available to the research community via our
web pages and know how time consuming these queries can be!

 

Sincerely 

 

Graham Bignell

 

Graham R. Bignell BSc. PhD.

Senior Staff Scientist.

Cancer Genome Project,

Wellcome Trust Sanger Institute,

Wellcome Trust genome Campus,

Hinxton, Cambridge, CB10 1SA.

 

Tel +44 (0)1223 494818

 




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