ENU-induced C to T transition at base pair 128,081,634 (v38) on chromosome 7, or base pair 18,995 in the GenBank genomic region NC_000073. The mutation corresponds to residue 837 in the mRNA sequence NM_001082960 within exon 8 of 30 total exons. The mutation results in an alanine to valine substitution at position 245 (A245V) in the CD11b protein.