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3.4.21.6: coagulation factor Xa

This is an abbreviated version!
For detailed information about coagulation factor Xa, go to the full flat file.

Word Map on EC 3.4.21.6

Reaction

selective cleavage of Arg-/-Thr and then Arg-/-Ile bonds in prothrombin to form thrombin =

Synonyms

activated blood-coagulation factor X, activated factor X, activated Stuart-Prower factor, autoprothrombin C, blood coagulation factor X, blood coagulation factor Xa, blood-coagulation factor X, activated, clotting factor Xa, coagulation factor X, coagulation factor Xa, f.Xa, factor X, factor Xa, Fgl2 protein, fX, FXa, FXaalpha/beta, hXa, More, oscutarin, plasma thromboplastin, procoagulant factor X, prothrombase, prothrombin activator, prothrombinase, Stuart factor, thrombokinase, thromboplastin, thromboplastin, plasma, trocarin, Trocarin prothrombin activator, VAP, Virus activating protease, Xa

ECTree

     3 Hydrolases
         3.4 Acting on peptide bonds (peptidases)
             3.4.21 Serine endopeptidases
                3.4.21.6 coagulation factor Xa

Cofactor

Cofactor on EC 3.4.21.6 - coagulation factor Xa

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COFACTOR
ORGANISM
UNIPROT
COMMENTARY hide
LITERATURE
IMAGE
1,2-dicaproyl-sn-glycero-3-phospho-L-serine
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i.e. C6PS, soluble phospholipid, 2 molecules per enzyme molecule, binding to 2 binding sites in sigmoidal fashion with active site labeled enzyme and in hyperbolic fashion with nonlabeled enzyme, binding induces conformaional changes of secondary structure, binding to the tighter of the 2 binding site triggers structural changes which lead to Ca2+-dependent dimer formation, model of sequential binding mechanism
Factor V
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Factor Va
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Factor VIIa
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human plasma factor V activated by thrombin, residues 1-709 and 1546-2196, required for catalytic activity in the prothrombinase complex activating prothrombin to thrombin
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factor VNN
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factor V cleaved by the venom of the snake Naja nigricollis nigricollis at Asp697, Asp1509, and Asp1514, 2 fragments of MW 100 and 80 kDa, 7% clotting activity compared to factor VIIa
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factor VNN/IIa
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factor VNN cleaved by alpha-thrombin at Arg1545, 48% clotting activity compared to factor VIIa
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factor VNN/RVV
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factor VNN cleaved by Russell's viper venom at Arg1545, 48% clotting activity compared to factor VIIa
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factor VRVV
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factor V cleaved by Russell's viper venom at Arg1018 and Arg1545, 2 fragments of MW 74 and 150 kDa, 102% clotting activity compared to factor VIIa
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Phospholipids
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part of the prothrombinase complex, reduce the inhibitory effect of 3-chloro-N-[2-[[(4-fluorophenyl)amino]carbonyl]-4-methylphenyl]benzo[b]thiophene-2-carboxamide
vitamin K
dependent on
additional information
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