NCIt definition : Human MAT1A wild-type allele is located in the vicinity of 10q22.3 and is approximately
18 kb in length. This allele, which encodes S-adenosylmethionine synthase isoform
type-1 protein, plays a role in S-adenosyl-L-methionine biosynthesis. Mutation of
the gene is associated with hypermethioninemia due to methionine adenosyltransferase
deficiency.;