This column shows the Affymetrix ID from the MOE430 series of chips (A & B) that best corresponds to each gene.
Target genome sequences were downloaded from the Affymetrix Product Support website and mapped to the genome using blat followed by pslReps with the parameters -minCover=0.3 -minAli=0.95 -nearTop=0.005. For each gene, the target with the most overlap (on the same strand and excluding introns) was selected.