abnormal circulating enzyme level abnormal circulating alanine transaminase level MP:0000204 MP:0001573 MPheno.ontology aberrant concentration in the blood of the enzyme which transfers amino groups from l-alanine to 2-ketoglutarate, or the reverse (from l-glutamate to pyruvate); serum concentration is increased in viral hepatitis and myocardial infarction abnormal ALT level abnormal GPT level abnormal SGPT level abnormal alanine aminotransferase level abnormal alanine transaminase level abnormal glutamate pyruvate transaminase level abnormal glutamic-pyruvic transaminase level