Drögemüller et al. (2011) identified a likely causal variant in Tyrolean Grey cattle as the synonymous c.2229C>T SNP, which "is located within a putative exonic splice enhancer (ESE) and the variant allele leads to partial retention of the entire intron 19 and a premature stop codon in the aberrant MFN2 transcript. Thus we have identified a highly unusual splicing defect, where an exonic single base exchange leads to the retention of the pr...
OMIA ID:1106Inheritance: 5Characterised: YesYear: 2011
Cloning and sequencing of the bovine gene encoding molybdopterin cofactor sulfurase (MCSU, now called MOCOS) in normal and affected cattle, by Watanabe et al. (2000), revealed the causal mutation to be a 3bp deletion (c.769_771delTAC) of codon 257 (deleting Tyr) in the MOCOS gene (omia.variant:446). Murgiano et al. (2016) discovered a different mutation in the MUCOS gene as the likely cause in Tyrolean Grey cattle: "1 bp deletion in the molybd...
OMIA ID:1819Inheritance: Pedigree analysis by Watanabe et al. (2000) revealed autosomal recessive inhe...Characterised: YesYear: 2000