Hope someone can help me on this. Basically I'm mapping probeIDs from the chip hgu133a.db to entrezIDs and I found that out of 22283 probesetIDs, 1266 maps to multiple entrezIDs. within it there are microRNAs, histones, pseudogenes and other weird stuff :D. So question is...how do I make the call, if it is possible, to which is the most reliable mapping for each of the multimapping probeset?
Hope this question is pertinent to this community.
PhD student in Genomics
Roslin Institute, Scotland