ENU-induced T to A transversion at base pair 20,595,951 (v38) on chromosome 18, or base pair 37,878 in the GenBank genomic region NC_000084 within intron 12 (9-base pairs upstream of exon 13 [out of 15 total exons]). The effect of the mutation at the cDNA and protein levels has not been examined, but the mutation is predicted to result in the use of a cryptic site in exon 13. The mutation would cause a 2-base pair deletion of exon 13, causing a frame-shifted protein product beginning after amino acid 632 of the protein, which is normally 1,122 amino acids in length, and termination after the inclusion of 33 aberrant amino acids.