Proteomic characterization of two snake venoms: Naja naja atra and Agkistrodon halys

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Proteomic characterization of two snake venoms: Naja naja atra and Agkistrodon halys.

Snake venom is a complex mixture of proteins and peptides, and a number of studies have described the biological properties of several venomous proteins. Nevertheless, a complete proteomic profile of venom from any of the many species of snake is not available. Proteomics now makes it possible to globally identify proteins from a complex mixture. To assess the venom proteomic profiles from Naja...

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Phospholipase A of snake venoms. I. Isolation and molecular properties of isoenzymes from Naja naja and Vipera russellii venoms.

A combination of narrow range isoelectric focusing, electrophoresis on polyacrylamide gel, and gel exclusion on Sephadex reveals the presence of at least 9, possibly 11 isoenzymes of phospholipase A in Naja naja (cobra) venom. Their isoelectric points range from pH 4.60 to 5.66 and their molecular weights from 8,500 to 20,200. The most abundant form (isoelectric point = pH 4.95) has been isolat...

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Proteomic characterization of the thermostable toxins from Naja naja venom

Naja naja snake venom presents abundant thermostable peptides. Many of them possess useful pharmacological activity that may be employed for drug development. For the proteomic characterization of such toxins, in the present study, Naja naja venom solution was heated up to 100°C for 10, 30, 60, 120, 180 and 300 minutes and protein fractions of non-heated and heated venom were analyzed by twodim...

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Differential Effects of Naja naja atra Venom on Immune Activity

Previous studies reported that Naja naja atra venom (NNAV) inhibited inflammation and adjuvant arthritis. Here we investigated the role of NNAV in regulation of immune responses in mice. Oral administration of NNAV to normal mice showed significant increase in natural killer cell activity, B lymphocyte proliferation stimulated by lipopolysaccharides, and antibody production in response to sheep...

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Preparation and characterization of immunoglobulin yolk against the venom of Naja naja atra.

Chinese Cobra (Naja naja atra) bite is one of the leading causes of snake-bite mortality in China. The traditional anti-cobra venom serum therapy was found to be expensive and with high frequency of side effects. Therefore attempts were made to generate a high titer immunoglobulin from egg yolk (IgY) of crude cobra-venom immunized Leghorn hens, and to standardize an effective method for produci...

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ژورنال

عنوان ژورنال: Biochemical Journal

سال: 2004

ISSN: 0264-6021,1470-8728

DOI: 10.1042/bj20040354