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Serious clinical problems such as hemorrhage, edema and tissue necrosis are observed following viperid envenoming. A proteinase (VLH2) was isolated from Vipera lebetina by combination of two chromatographic steps of gel filtration on Sephadex G-75 followed by DEAE Sephadex A-50. This acidic proteinase, with a molecular mass of about 55 kDa and isoelectric point of 5.4, displayed a fibrinogenolytic...
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