CATH Classification

Domain Context

CATH Clusters

Superfamily Trypsin-like serine proteases
Functional Family Coagulation factor X

Enzyme Information

3.4.21.6
Coagulation factor Xa.
based on mapping to UniProt P00742
Selective cleavage of Arg-|-Thr and then Arg-|-Ile bonds in prothrombin to form thrombin.
-!- A blood coagulation factor formed from the proenzyme factor X by limited proteolysis. -!- Factor X is a glycoprotein composed of a heavy chain and a light chain, which are generated from a precursor protein by the excision of the tripeptide RKR and held together by one or more disulfide bonds. -!- The activated factor Xa converts prothrombin to thrombin in the presence of factor Va, Ca(2+) and phospholipids. -!- Scutelarin (EC 3.4.21.60) has similar specificity, but does not require factor Va. -!- Belongs to peptidase family S1.

UniProtKB Entries (2)

P23827
ECOT_ECOLI
Escherichia coli K-12
Ecotin
P00742
FA10_HUMAN
Homo sapiens
Coagulation factor X

PDB Structure

PDB 1P0S
External Links
Method X-RAY DIFFRACTION
Organism Escherichia
Primary Citation
The Extended Interactions and Gla Domain of Blood Coagulation Factor Xa
Wang, S.X., Hur, E., Sousa, C.A., Brinen, L., Slivka, E.J., Fletterick, R.J.
Biochemistry
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