ENU-induced C to T transition at base pair 122,627,693 (v38) on chromosome 7, or base pair 338,569 in the GenBank genomic region NC_000073. The mutation corresponds to residue 2,121 in the mRNA sequence NM_008855 within exon 17 of 17 total exons. The mutation results in a threonine to isoleucine substitution at position 634 (T634I) in the PKC protein.