3KQB image
Deposition Date 2009-11-17
Release Date 2010-02-23
Last Version Date 2024-11-27
Entry Detail
PDB ID:
3KQB
Keywords:
HYDROLASE
Title:
Factor xa in complex with the inhibitor n-(3-fluoro-2'- (methylsulfonyl)biphenyl-4-yl)-1-(3-(5-oxo-4,5-dihydro-1h- 1,2,4-triazol-3-yl)phenyl)-3-(trifluoromethyl)-1h- pyrazole-5-carboxamide
Biological Source:
Source Organism:
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.25 Å
R-Value Free:
0.22
R-Value Work:
0.18
R-Value Observed:
0.18
Space Group:
P 21 21 21
3KQB validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:factor Xa heavy chain
Gene (Uniprot):F10
Chain IDs:A
Chain Length:234
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P00742 Pfam ID:PF00089, PF14670 EC:3.4.21.6
Protein Blast
Polymer Type:polypeptide(L)
Molecule:factor Xa light chain
Gene (Uniprot):F10
Chain IDs:B (auth: L)
Chain Length:52
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P00742 Pfam ID:PF00089, PF14670 EC:3.4.21.6
Ligand Molecules
LGJ
NA
Primary Citation
Phenyltriazolinones as potent factor Xa inhibitors.
Bioorg.Med.Chem.Lett. 20 1373 1377 (2010)
PMID: 20100660 DOI: 10.1016/j.bmcl.2010.01.011

Abstact

We have discovered that phenyltriazolinone is a novel and potent P1 moiety for coagulation factor Xa. X-ray structures of the inhibitors with a phenyltriazolinone in the P1 position revealed that the side chain of Asp189 has reoriented resulting in a novel S1 binding pocket which is larger in size to accommodate the phenyltriazolinone P1 substrate.

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Protein

Chemical

Disease

Primary Citation of related structures
3KQC
3KQD
3KQE