[Genome] Missing affymetrix probes

[Schraga Schwartz]

Hello,

 

I am currently analyzing an affymetrix human exon array. Ending up with
various probesets, I tried downloading their coordinates from UCSC (using
the Table Browser through Galaxy). I got the following warning: 

 

"Note: 4 of the 29765 given identifiers (e.g. 2574994) have no match in
table affyHuEx1, field name. Try the "describe table schema" button for more
information about the table and field". 

 

Indeed, when looking up probeset 2574994 - it is not visualized in UCSC. Any
ideas what the problem may be?

 

Thank you,

 

Schraga Schwartz

Department of Human Molecular Genetics and Biochemistry,
Tel Aviv University Medical School,
Tel Aviv 69978, Israel.
Tel: +972-3-640 6894

email: schragas at post.tau.ac.il