4AZ2

Human thrombin - inhibitor complex


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.141 
  • R-Value Observed: 0.143 

wwPDB Validation   3D Report Full Report


This is version 1.3 of the entry. See complete history


Literature

Design and Synthesis of Potent and Highly Selective Thrombin Inhibitors.

Hilpert, K.Ackermann, J.Banner, D.W.Gast, A.Gubernator, K.Hadvary, P.Labler, L.Muller, K.Schmid, G.Tschopp, T.B.

(1994) J Med Chem 37: 3889

  • DOI: 10.1021/jm00049a008
  • Primary Citation of Related Structures:  
    4AX9, 4AYV, 4AYY, 4AZ2

  • PubMed Abstract: 
  • Thrombin, a serine protease, plays a central role in the initiation and propagation of thrombotic events. An extensive search for new thrombin inhibitors was performed, using an unconventional approach. Screening of small basic molecules for binding in t ...

    Thrombin, a serine protease, plays a central role in the initiation and propagation of thrombotic events. An extensive search for new thrombin inhibitors was performed, using an unconventional approach. Screening of small basic molecules for binding in the recognition pocket of thrombin led to the discovery of (aminoiminomethyl)piperidine (amidinopiperidine) as a weak, but intrinsically selective, thrombin inhibitor. Elaboration of this molecule provided compounds which inhibit thrombin with Ki's in the range of 20-50 nM and with selectivities of 1000-4000 against trypsin. These inhibitor compounds show a new and unexpected binding mode to thrombin. Modification of the central building block and then of one of the hydrophobic substituents led to the discovery of a new family of thrombin inhibitors which has reverted to the former binding mode to thrombin. This last class of compounds shows inhibitory activities in the picomolar range, low toxicity, and a short plasma half life which favors its use for an intravenous application. From this series of thrombin inhibitors, 19f(Ro 46-6240) was selected for clinical development as an antithrombotic agent for intravenous administration.


    Organizational Affiliation

    Pharma Division, F. Hoffmann-La Roche Ltd., Basel, Switzerland.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
THROMBIN LIGHT CHAIN A30Homo sapiensMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens)
Explore P00734 
Go to UniProtKB:  P00734
NIH Common Fund Data Resources
PHAROS:  P00734
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
THROMBIN HEAVY CHAIN B257Homo sapiensMutation(s): 0 
Gene Names: F2
EC: 3.4.21.5
Find proteins for P00734 (Homo sapiens)
Explore P00734 
Go to UniProtKB:  P00734
NIH Common Fund Data Resources
PHAROS:  P00734
Protein Feature View
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  • Reference Sequence
  • Find similar proteins by:  Sequence   |   Structure
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
HIRUDIN-3A' D11Hirudo medicinalisMutation(s): 0 
Find proteins for P28508 (Hirudo medicinalis)
Explore P28508 
Go to UniProtKB:  P28508
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
9MU
Query on 9MU

Download Ideal Coordinates CCD File 
B
(R)-N-((S)-1-CARBAMIMIDOYL-PIPERIDIN-3-YLMETHYL)-2-(NAPHTHALENE-2-SULFONYLAMINO)-3-PHENYL-PROPIONAMIDE
C26 H31 N5 O3 S
WWJJOLLOSVQTGQ-GBXCKJPGSA-N
 Ligand Interaction
NAG
Query on NAG

Download Ideal Coordinates CCD File 
B
2-acetamido-2-deoxy-beta-D-glucopyranose
C8 H15 N O6
OVRNDRQMDRJTHS-FMDGEEDCSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
9MUKi :  47   nM  PDBBind
9MUKi:  32   nM  BindingDB
9MUKi:  47   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.190 
  • R-Value Work: 0.141 
  • R-Value Observed: 0.143 
  • Space Group: P 43 21 2
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 90.8α = 90
b = 90.8β = 90
c = 132.5γ = 90
Software Package:
Software NamePurpose
REFMACrefinement
XDSdata reduction
XDSdata scaling
AMoREphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2012-08-15
    Type: Initial release
  • Version 1.1: 2013-08-07
    Changes: Other
  • Version 1.2: 2017-06-28
    Changes: Data collection
  • Version 1.3: 2020-07-29
    Type: Remediation
    Reason: Carbohydrate remediation
    Changes: Data collection, Derived calculations, Other, Structure summary