title: The amino acid sequences of two postsynaptic neurotoxins isolated from Malayan cobra (Naja naja sputatrix) venom.
abstract: The complete amino acid sequences of two postsynaptic neurotoxins (toxin-3 and toxin-5) isolated from Malayan cobra (Naja naja sputatrix) venom were determined by direct automated Edman degradation of peptides obtained from digests with various proteases. Toxin-3 and toxin-5 are both short-chain neurotoxins and their amino acid sequences are highly homologous to Naja naja atra and Naja naja philippinensis neurotoxin, respectively. Toxin-3 is unique in possessing aspartic acid (D) as the fifth residue, while all other homologous short-chain neurotoxins have asparagine (N) at the corresponding position.
authors.affiliation: Department of Biochemistry, National University of Singapore, Kent Ridge.
authors.forename: M C
authors.initials: MC
authors.lastname: Chung
authors.forename: N H
authors.initials: NH
authors.lastname: Tan
authors.forename: A
authors.initials: A
authors.lastname: Armugam
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D001216:Asparagine / Q000378:metabolism; D001224:Aspartic Acid / Q000378:metabolism; D004546:Elapid Venoms / Q000737:chemistry* / Q000302:isolation & purification / Q000378:metabolism; D017815:Elapidae; D008969:Molecular Sequence Data; D009498:Neurotoxins / Q000737:chemistry* / Q000378:metabolism; D017386:Sequence Homology, Amino Acid; D013329:Structure-Activity Relationship
chemical_list: D004546:Elapid Venoms; D009498:Neurotoxins; D001224:Aspartic Acid; D001216:Asparagine