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A novel fibrinogenase, DAnase, was purified from the venom of Deinagkistrodon acutus by a combination of anion and cation exchange chromatography. Unlike other fibrinogenases which are usually single polypeptide chain proteins, the enzyme was a disulfide-linked dimer with an isoelectric point of 6.03 and an apparent molecular weight of 25kDa on SDS–polyacrylamide gel electrophoresis. DAnase showed...
The phosphodiesterases (PDEs) are a superfamily of enzymes that have multiple roles in extracellular nucleotide metabolism and in the regulation of nucleotide-based intercellular signaling. Here we describe for the first time the isolation and partial characterization of a novel phosphodiesterase from Trimeresurus stejnegeri venom, named TS-PDE, using ion exchange and gel filtration chromatography...
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