2.6.1.40 (R)-3-amino-2-methylpropionate---pyruvate transaminase; D-3-aminoisobutyrate---pyruvate transaminase; beta-aminoisobutyrate-pyruvate aminotransferase; D-3-aminoisobutyrate-pyruvate aminotransferase; D-3-aminoisobutyrate-pyruvate transaminase; (R)-3- • • •