ISDA

Entry Detail

PDB ID:

2ANM

Keywords:

Title:

Ternary complex of an orally active thrombin inhibitor with human thrombin and a c-terminal hirudin derived exo-sit inhibitor

Biological Source:

Source Organism:

Homo sapiens

Host Organism:

Escherichia coli

PDB Version:

Deposition Date:

2005-08-11

Release Date:

2006-06-13

Method Details:

Experimental Method:

X-RAY DIFFRACTION

Resolution:

2.40 Å

R-Value Free:

0.25

R-Value Work:

0.19

Space Group:

C 1 2 1

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Macromolecular Entities

Protein Blast

Polymer Type:polypeptide(L)
Description:thrombin
Chain IDs:A (auth: H)
Chain Length:257
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P00734 Pfam ID:PF00089, PF09396 EC:3.4.21.5

Protein Blast

Polymer Type:polypeptide(L)
Description:thrombin
Chain IDs:B (auth: L)
Chain Length:36
Number of Molecules:1
Biological Source:Homo sapiens

UniProt ID:P00734 Pfam ID:PF00089, PF09396 EC:3.4.21.5

Ligand Molecules

CDO

Primary Citation

Orally active thrombin inhibitors. Part 2: optimization of the P2-moiety

Lange, U.E.W, Baucke, D, Hornberger, W, Mack, H, Seitz, W, Hoeffken, H.W.Show

Bioorg.Med.Chem.Lett. 16 2648 2653 (2006)

PMID: 16460939 DOI: 10.1016/j.bmcl.2006.01.046

Abstact

Synthesis and SAR of orally active thrombin inhibitors of the d-Phe-Pro-Arg type with focus on the P2-moiety are described. The unexpected increase in in vitro potency, oral bioavailability, and in vivo activity of inhibitors with dehydroproline as P2-isostere is discussed. Over a period of 24h the antithrombin activity of the most active inhibitors with IC(50)s in the nanomolar range was determined in dogs demonstrating high thrombin inhibitory activity in plasma and an appropriate duration of action after oral administration.

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Primary Citation of related structures