Snake Venom. The Amino Acid Sequence of Protein A fromDendroaspis polylepis polylepis(Black mamba) Venom

Abstract
Protein A from D. polylepis polylepis venom comprised 81 amino acids, including 10 half-cystine residues. The complete primary structures of protein A and its variant A'' were elucidated. Sequences of proteins A and A'', which differ in a single position, showed no homology with various neurotoxins and non-neurotoxic proteins and represented a new type of elapid venom protein.