A comparative study of cobra (Naja) venom enzymes.
1. The L-amino acid oxidase, hyaluronidase, alkaline phosphomonoesterase, protease, phosphodiesterase, acetylcholinesterase, phospholipase A and 5'-nucleotidase activities of 47 samples of venoms from all the six species of cobra (Naja), including five subspecies of Naja naja, were examined. 2. The results demonstrated interspecific differences in the venom contents of phospholipase A, acetylcholinesterase, hyaluronidase and phosphodiesterase. These differences in venom enzyme contents can be used for the differentiation of species of the genus Naja. 3. Thus, our results revealed a correlation between the enzyme composition of venom and the taxonomic status of the snake at the species level for the genus Naja.
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Department of Biochemistry, University of Malaya, Kuala Lumpur, Malaysia.
Tan
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D015720:5'-Nucleotidase; D000110:Acetylcholinesterase / Q000032:analysis; D000594:Amino Acid Oxidoreductases / Q000032:analysis; D000818:Animals; D004546:Elapid Venoms / Q000032:analysis*; D004798:Enzymes / Q000032:analysis*; D006821:Hyaluronoglucosaminidase / Q000032:analysis; D050830:L-Amino Acid Oxidase; D009708:Nucleotidases / Q000032:analysis; D010447:Peptide Hydrolases / Q000032:analysis; D010741:Phospholipases A / Q000032:analysis; D010727:Phosphoric Diester Hydrolases / Q000032:analysis; D010744:Phosphoric Monoester Hydrolases / Q000032:analysis; D012911:Snakes; D013045:Species Specificity
D004546:Elapid Venoms; D004798:Enzymes; D000594:Amino Acid Oxidoreductases; D050830:L-Amino Acid Oxidase; D010741:Phospholipases A; D000110:Acetylcholinesterase; D009708:Nucleotidases; D010744:Phosphoric Monoester Hydrolases; D015720:5'-Nucleotidase; D010727:Phosphoric Diester Hydrolases; D006821:Hyaluronoglucosaminidase; D010447:Peptide Hydrolases