Where are the raw data files containing Affy sequence and annotation information?
For some time the starting point to get GeneChip information is the Affy products page. The selections on that page recently changed. Look for a dropdown box under “Expression Analysis Arrays” on that page and select an array of interest. I find Affy’s naming conventions somewhat confusing for their mouse chips. The older chip was called the “Murine Genome U74Av2” (MGU74Av2). Newer chips are called “Mouse Expression Set 430” and are sold in “A” and “B” chips, MOE430A and MOE430B. The annotations were better for the “A” chip in general, with many ESTs present on the “B” chip.. Then these “A” and “B” chips were combined into a single chip, Mouse430_2. For some reason there is an “A” version of this chip now, Mouse430A_2. Having two chips with similar names, MOE430A and Mouse430A_2, is a confusing convention After you are certain which chip you care about and have found its web page, there should be an area at the lower right labeled “ADDITIONAL SUPPORT”. One of the links under this headi
