highly significantp < 10-9
Genotyping of 419 psoriasis families further revealed that CCHCR1*WWCC (four SNPs, 2 each in exons 4 and 10) and HLA-Cw*6 allele were associated with psoriasis [4]. A genome scan of the 220-kb region (at chromosome 6p21) across 171 family-based trios of European origin, identified 59 SNPs (18 in coding and 41 in non-coding regions), of which two SNPs (n.7 and n.9 lying 7 and 4 kb proximal to HLA-C, respectively) were found to exhibit highly significant association (p < 10-9 ), sug- gesting these two SNPs as markers for psoriasis sus- ceptibility [37].