PBX1 and type 2 diabetes mellitus: A comparison of this list with the SNPs genotyped in this study indicates that we typed a mere 18 tag SNPs (or proxies) plus 11 other SNPs, equating to ~25% of the common variation at PBX1. Thus, we are not able to rule out the possibility that type 2 diabetes susceptibility variants exist at the PBX1 locus.