A transgenic construct containing the SMN(A111G) missense mutation under the control of 4.1 kb SMN promoter was injected into fertilized FVB/N mouse eggs. Eleven founder lines were obtained and line 588 was subsequently established. This line was found to have 4 copies of the transgene. The transgene integrated on chromosome 8 (119838039-119852117; mouse mm10]), which resulted in a duplication of the 14 kb genomic region in between the two identified fusion points. This duplicated region includes exons 1 and 2 of the Cotl1 locus. It is not known if the duplicated region expresses any Cotl1 isoforms or truncated protein. (J:101977, J:148541)