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Anticoagulation factor I (ACF I), a snake C-type lectin (snaclec) from the venom of Agkistrodon acutus binds specifically with activated factor X (FXa) in a Ca 2+ -dependent manner and prolongs the blood-clotting time in vitro. In this study, the inhibition of the coagulation pathway by ACF I was measured in vivo by activated partial thromboplastin time and prothrombin time assays and the...
Factor IX-binding protein (AHP IX-bp), a Ca 2+ - and Zn 2+ -binding protein from the venom of Agkistrodon Halys Pallas was reported to bind specifically with factor IX in a Zn 2+ -dependent manner. Here we have purified AHP IX-bp by a simple two-step of chromatography procedure and found that AHP IX-bp also binds factor Xa (FXa) with high binding-affinity in a Mg 2+ ...
Two anticoagulants from five-pace snake (Agkistrodon acutus) venom, anticoagulation factor I (ACF I) and anticoagulation factor II (ACF II), have been purified by a multiple-step chromatography procedure of anion-exchange chromatography, gel permeation chromatography and cation-exchange chromatography. Each of them is shown to be homogeneous as judged by PAGE, SDS-PAGE and mass spectrometry. In vitro,...
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