1ZGI image
Deposition Date 2005-04-21
Release Date 2005-09-27
Last Version Date 2024-10-09
Entry Detail
PDB ID:
1ZGI
Keywords:
HYDROLASE/HYDROLASE INHIBITOR
Title:
thrombin in complex with an oxazolopyridine inhibitor 21
Biological Source:
Source Organism:
Hirudo medicinalis (Taxon ID: 6421)
Homo sapiens (Taxon ID: 9606)
Method Details:
Experimental Method:
X-RAY DIFFRACTION
Resolution:
2.20 Å
R-Value Free:
0.26
R-Value Work:
0.22
R-Value Observed:
0.22
Space Group:
C 1 2 1
1ZGI validation report
Macromolecular Entities
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Thrombin
Gene (Uniprot):F2
Chain IDs:A
Chain Length:287
Number of Molecules:1
Biological Source:Homo sapiens
UniProt ID:P00734 Pfam ID:PF09396, PF00089 EC:3.4.21.5
Protein Blast
Polymer Type:polypeptide(L)
Molecule:Hirudin
Chain IDs:B
Chain Length:10
Number of Molecules:1
Biological Source:Hirudo medicinalis
UniProt ID:P01050
Modified Residue
Compound ID Chain ID Parent Comp ID Details 2D Image
TYS B TYR O-SULFO-L-TYROSINE
Ligand Molecules
382
Primary Citation
Development of an oxazolopyridine series of dual thrombin/factor Xa inhibitors via structure-guided lead optimization.
Bioorg.Med.Chem.Lett. 15 4411 4416 (2005)
PMID: 16137886 DOI: 10.1016/j.bmcl.2005.07.022

Abstact

Thrombin-inhibitor X-ray crystal structures, in combination with the installation of binding elements optimized within the pyrazinone series of thrombin inhibitors, were utilized to transform a weak triazolopyrimidine lead into a series of potent oxazolopyridines. A modification intended to attenuate plasma protein binding (i.e., conversion of the P3 pyridine to a piperidine) conferred significant factor Xa activity to this series. Ultimately, these dual thrombin/factor Xa inhibitors demonstrated excellent in vitro and in vivo anticoagulant efficacy.

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Primary Citation of related structures
1ZGI