pubmed-article:1810247 | pubmed:abstractText | Indian cobra (Naja naja naja) venom is reported to contain multiple forms of phospholipase A2. Only a couple of them have been isolated and characterized. A lethal phospholipase A2 (NN-IVb1-PLA2) from Naja naja naja venom has been purified in three steps involving CM-Sephadex C-25, Sephadex G-50 and rechromatography on CM-Sephadex C-25 columns. It is a basic protein with pl value between 7-7.5 and has molecular weight between 11,000-11,500. The LD50 of NN-IVb1-PLA2 is 1.2 mg/K g body weight. It induces neurotoxic symptoms in the experimental mice and is devoid of myotoxic, anticoagulant, edema inducing and direct hemolytic activities. | lld:pubmed |