[Genome] Some questions about Affy All Exon

Mon Oct 22 12:07:30 PDT 2007

Thank you for you response, but this question is different, this time I want to know, the probe corespond location information , last time I want to learn about tissue response, Thanks again and I look forward to hearing from you.

Dong Li 

-----Original Message-----
From: Applications Support [mailto:support at affymetrix.com]
Sent: Mon 10/22/2007 2:54 PM
To: Li, Dong; Applications Support
Cc: genome at soe.ucsc.edu
Subject: RE: Some questions about Affy All Exon 

Hello Dong Li-

This question seems to have been answered by the group at UCSC.  Please
refer to the following link.

http://www.soe.ucsc.edu/pipermail/genome/2007-October/014848.html

Casey Gates

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________________________________

From: Li, Dong [mailto:dli at msm.edu] 
Sent: Monday, October 22, 2007 11:41 AM
To: Applications Support
Cc: genome at soe.ucsc.edu
Subject: Some questions about Affy All Exon 

Dear Sir,

Good morning. I have some questions about UCSC Table Browser's
Affymetrix All Exon data.
http://www.genome.ucsc.edu/cgi-bin/hgTables?hgsid=98882974&clade=vertebr
ate&org=Human&db=hg18&hgta_group=regulation&hgta_track=yaleBertoneTars&h
gta_table=0&hgta_regionType=range&position=chr9%3A21957875-21965084&hgta
_outputType=primaryTable&hgta_outFileName=

After download data, I find if I specific GeneExpression and Regulation"
selection in group and specific "Affy All Exon" in track. The data give
us contain ChromStart ChromEnd expids expScores and so on. But I wonder
sine the expScore value was got from different probe, how I can find
specific probe location information from this data? I mean I only have
general range information from ChromStart ChromEnd and in theory, every
block should contain several probes.
So how I can find the probe location information?.

Second, if every expScore value comes from correspond group probe's
signals, how this signal come out? I mean just simple give every probe
average value and sum them or have to give specific handle?

Thanks in advance and I look forward to hearing from you ASAP.

Dong Li Ph.D.

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