aspartic acid(redirected from alpha (alpha)-aminosuccinic acid)
Also found in: Dictionary, Thesaurus, Medical.
aspartic acid(əspär`tĭk), organic compound, one of the 20 amino acidsamino acid
, any one of a class of simple organic compounds containing carbon, hydrogen, oxygen, nitrogen, and in certain cases sulfur. These compounds are the building blocks of proteins.
..... Click the link for more information. commonly found in animal proteins. Only the l-stereoisomer participates in the biosynthesis of proteins. Its acidic side chain adds a negative charge and hence a greater degree of water-solubility to proteins in neutral solution and has been shown to be near the active sites of some enzymes (see pepsinpepsin,
enzyme produced in the mucosal lining of the stomach that acts to degrade protein. Pepsin is one of three principal protein-degrading, or proteolytic, enzymes in the digestive system, the other two being chymotrypsin and trypsin.
..... Click the link for more information. ). Aspartic acid is not essential to the human diet. It was discovered in protein in 1868.
aspartic acid[ə′spärd·ik ′as·əd]
C4H7NO4 A nonessential, crystalline dicarboxylic amino acid found in plants and animals, especially in molasses from young sugarcane and sugarbeet.