Methionine Adenosyltransferase Deficiency

**Semantic type:** Disease or Syndrome

**Definition:** A metabolic disorder usually inherited in an autosomal recessive pattern and caused by mutations in the MAT1A gene. Affected individuals usually do not have clinical abnormalities.

**Synonyms:** - Hypermethioninemia, Isolated Persistent - Isolated Persistent Hypermethioninemia - MAT Deficiency - MAT I/III Deficiency