Bovine carboxypeptidase A variants resulting from allelomorphism.

Abstract
Amino acid replacement in the antepenultimate C-terminal position of bovine carboxypeptidase Aa gives rise to 2 distinct species of the enzyme which may occur either separately or together in any individual animal. Distribution among 13 animals was shown to be consistent with the approximately equal occurrence of 2 alleles in the general population. The enzymes were found to have similar activity toward hippuryl phenyllactic acid, but to differ markedly in their heat stability.