CATH Classification

Domain Context

CATH Clusters

Superfamily Trypsin-like serine proteases
Functional Family Coagulation factor X

Enzyme Information
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 has similar specificity, but does not require factor Va. -!- Belongs to peptidase family S1.

UniProtKB Entries (1)

Homo sapiens
Coagulation factor X

PDB Structure

PDB 4Y76
External Links
Primary Citation
Factor Xa inhibitors: S1 binding interactions of a series of N-{(3S)-1-[(1S)-1-methyl-2-morpholin-4-yl-2-oxoethyl]-2-oxopyrrolidin-3-yl}sulfonamides.
Chan, C., Borthwick, A.D., Brown, D., Burns-Kurtis, C.L., Campbell, M., Chaudry, L., Chung, C.W., Convery, M.A., Hamblin, J.N., Johnstone, L., Kelly, H.A., Kleanthous, S., Patikis, A., Patel, C., Pateman, A.J., Senger, S., Shah, G.P., Toomey, J.R., Watson, N.S., Weston, H.E., Whitworth, C., Young, R.J., Zhou, P.
J. Med. Chem.