Aminotransferases
Alanine aminotransferase (ALT) or serum glutamic-oxaloacetic transaminase (SGOT): found mainly in the liver (lesser amounts in skeletal muscle and kidney)
Aspartate aminotransferase (AST) or serum glutamic-pyruvic transaminase (SGPT): widely distributed in equal amounts in the heart, skeletal muscle, and liver