Aspartate transaminase (AST), also called aspartate aminotransferase is commonly known as sgot (AspAT/ASAT/AAT) or serum glutamic oxaloacetic transaminase (SGOT), is a pyridoxal phosphate
(PLP)-dependent transaminase enzyme (EC2.6.1.1). AST catalyzes the reversible transfer of an α-amino group between aspartate and glutamate and, as such, is an important enzyme in amino acid
metabolism. AST is found in the liver, heart, skeletal muscle, kidneys, brain, and red blood cells, and it is commonly measured clinically as a marker for liver health.
http://www.creative-enzymes.com/product/Aspartate-Aminotransferase-From-Human-Recombinant_724.html