ENU-induced A to G transition at base pair 124,721,789 (v38) on chromosome 6, or base pair 16,921 in the GenBank genomic region NC_000072. The mutation corresponds to residue 1,756 in the mRNA sequence NM_013545 within exon 13 of 16 total exons. The mutation results in a threonine to alanine substitution at position 519 (T519A) in variant 1 of the SHP1 protein. (J:272440)