Thank you very much for your interest in ProbeMatchDB. We no longer support ProbeMatchDB updates since there are many gene ID conversion services available over the internet now. You may select services listed on Startbioinfo for your tasks.
If you are interested in mapping custom CDF probe sets to Affymetrix probe sets, you can download a custom CDF probe set to Affymetrix probe set mapping file from the custom CDF download page ( e.g., http://brainarray.mbni.med.umich.edu/Brainarray/Database/CustomCDF/17.0.0/ensg.asp). You can click the "O" link under the column name "CDF Seq Map Desc" (the rightmost column on the download page) to download files related to the custom CDF. The *_probe_tab file links that version of custom CDF probe sets to the Affymetrix probe sets.
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