HLA-B and psoriasis: To search for additional loci for psoriasis in the MHC region, we conducted logistic regression analyses adjusting for the imputed HLA-Cw*0602, and identified two loci within 1.2 Mb of HLA-C, one around the C6orf10 gene, and one between HLA-B and MICA. Both of these loci were significantly associated with disease risk after Bonferroni correction for the number of SNPs considered in the analyses.