20.064kb genomic fragment (CHORI-322-21P14 clone) that includes the pst locus. The nucleotide at the position of the A2469G SNP is an A (numbering relative to the start of the 5'UTR, and includes intronic positions). The A2469G SNP is a nonsynonymous mutation (Thr/Ala). The A variant is the susceptible allele with respect to resistance to Drosophila C virus (DCV).