An aminotransferase is an alternative term for transaminase, any of a group of enzymes which catalyzes transamination.

ALT and AST (liver enzymes....alanine aminotransferase and aspartate aminotransferase

Alanine aminotransferase

Liver enzymes in blood tests are ALT/SGPT (alanine aminotransferase) and AST/SGOT (aspartate aminotransferase).

The Aspartate aminotransferase test measures levels of AST, an enzyme released into the blood when certain organs or tissues, particularly the liver and heart, are injured