2BQ7

Crystal structure of factor Xa in complex with 43


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.218 

Starting Model: experimental
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Ligand Structure Quality Assessment 


This is version 1.4 of the entry. See complete history


Literature

Probing the Subpockets of Factor Xa Reveals Two Binding Modes for Inhibitors Based on a 2-Carboxyindole Scaffold: A Study Combining Structure-Activity Relationship and X-Ray Crystallography.

Nazare, M.Will, D.W.Matter, H.Schreuder, H.Ritter, K.Urmann, M.Essrich, M.Bauer, A.Wagner, M.Czech, J.Lorenz, M.Laux, V.Wehner, V.

(2005) J Med Chem 48: 4511

  • DOI: https://doi.org/10.1021/jm0490540
  • Primary Citation of Related Structures:  
    2BOH, 2BQ6, 2BQ7, 2BQW

  • PubMed Abstract: 

    Structure-activity relationships within a series of highly potent 2-carboxyindole-based factor Xa inhibitors incorporating a neutral P1 ligand are described with particular emphasis on the structural requirements for addressing subpockets of the factor Xa enzyme. Interactions with the subpockets were probed by systematic substitution of the 2-carboxyindole scaffold, in combination with privileged P1 and P4 substituents. Combining the most favorable substituents at the indole nucleus led to the discovery of a remarkably potent factor Xa inhibitor displaying a K(i) value of 0.07 nM. X-ray crystallography of inhibitors bound to factor Xa revealed substituent-dependent switching of the inhibitor binding mode and provided a rationale for the SAR obtained. These results underscore the key role played by the P1 ligand not only in determining the binding affinity of the inhibitor by direct interaction but also in modifying the binding mode of the whole scaffold, resulting in a nonlinear SAR.


  • Organizational Affiliation

    Aventis Pharma Deutschland GmbH, a company of the Sanofi-Aventis group, Industriepark Höchst, Frankfurt am Main, Germany. Marc.Nazare@sanofi-aventis.com


Macromolecules
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
COAGULATION FACTOR X52Homo sapiensMutation(s): 0 
EC: 3.4.21.6
UniProt & NIH Common Fund Data Resources
Find proteins for P00742 (Homo sapiens)
Explore P00742 
Go to UniProtKB:  P00742
PHAROS:  P00742
GTEx:  ENSG00000126218 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00742
Sequence Annotations
Expand
  • Reference Sequence
Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 2
MoleculeChains Sequence LengthOrganismDetailsImage
FACTOR XA249Homo sapiensMutation(s): 0 
EC: 3.4.21.6
UniProt & NIH Common Fund Data Resources
Find proteins for P00742 (Homo sapiens)
Explore P00742 
Go to UniProtKB:  P00742
PHAROS:  P00742
GTEx:  ENSG00000126218 
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP00742
Sequence Annotations
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChains Name / Formula / InChI Key2D Diagram3D Interactions
IID
Query on IID

Download Ideal Coordinates CCD File 
C [auth A]N-(1-ISOPROPYLPIPERIDIN-4-YL)-1-(3-METHOXYBENZYL)-1H-INDOLE-2-CARBOXAMIDE
C25 H31 N3 O2
GIPCBGDQVGKMPO-UHFFFAOYSA-N
CA
Query on CA

Download Ideal Coordinates CCD File 
D [auth B]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
Binding Affinity Annotations 
IDSourceBinding Affinity
IID PDBBind:  2BQ7 Ki: 89 (nM) from 1 assay(s)
BindingDB:  2BQ7 Ki: 89 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.20 Å
  • R-Value Free: 0.272 
  • R-Value Work: 0.218 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 55.94α = 90
b = 72.05β = 90
c = 78.55γ = 90
Software Package:
Software NamePurpose
CNXrefinement
XDSdata reduction
XSCALEdata scaling
CNXphasing

Structure Validation

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Ligand Structure Quality Assessment 


Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2006-04-26
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2019-01-30
    Changes: Data collection, Experimental preparation, Other
  • Version 1.4: 2023-12-13
    Changes: Data collection, Database references, Derived calculations, Other, Refinement description