1NFX

CRYSTAL STRUCTURE OF HUMAN COAGULATION FACTOR XA COMPLEXED WITH RPR208944

Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Work: 0.215 
  • R-Value Observed: 0.215 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history. 


Literature

Molecular structures of human Factor Xa complexed with ketopiperazine inhibitors: preference for a neutral group in the S1 pocket.

Maignan, S., Guilloteau, J.P., Choi-Sledeski, Y.M., Becker, M.R., Ewing, W.R., Pauls, H.W., Spada, A.P., Mikol, V.

(2003) J Med Chem 46: 685-690

  • DOI: 10.1021/jm0203837
  • Primary Citation of Related Structures:  
    1NFU, 1NFW, 1NFX, 1NFY

  • PubMed Abstract: 

    • The structures of the noncovalent complex of human factor Xa (fXa) with four non-peptide inhibitors containing a central sulfonylpiperazinone scaffold have been determined to about 2.1 A resolution. Highly potent fXa inhibitors containing both neutral groups such as chlorobenzothiophene or chlorothiophene and basic groups such as benzamidine were shown to interact in the S1 pocket through the neutral group whereas the S4 pocket is occupied by the basic moiety ...

    The structures of the noncovalent complex of human factor Xa (fXa) with four non-peptide inhibitors containing a central sulfonylpiperazinone scaffold have been determined to about 2.1 A resolution. Highly potent fXa inhibitors containing both neutral groups such as chlorobenzothiophene or chlorothiophene and basic groups such as benzamidine were shown to interact in the S1 pocket through the neutral group whereas the S4 pocket is occupied by the basic moiety. The scaffold comprising the sulfonyl keto piperazine moiety might play a pivotal role in the orientation of substituents, since there is a strong hydrogen bond between Gly219 of fXa and the carbonyl oxygen of the piperazine. This unique "reverse" binding mode is heretofore unreported in fXa and shows that electrostatic interactions in the S1 subsite are not an absolute requirement to maintain high affinity. Selectivity against other serine proteases can be readily explained in light of these structural results. It has opened up new prospects for designing fXa inhibitors with increased oral bioavailability.

    Organizational Affiliation: 

    Department of Structural Biology, Aventis Pharma, 13, Quai J. Guesde, F-94403 Vitry/Seine, France.



Macromolecules
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
COAGULATION FACTOR XA, heavy chainA254Homo sapiensMutation(s): 0 
Gene Names: F10
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
Protein Feature View
Expand
  • Reference Sequence
Find similar proteins by: 
(by identity cutoff)  |  Structure
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
Coagulation factor XA, light chainB134Homo sapiensMutation(s): 0 
Gene Names: F10
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
Protein Feature View
Expand
  • Reference Sequence
Small Molecules
Ligands 2 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
RDR (Subject of Investigation/LOI)
Query on RDR
Download Ideal Coordinates CCD File 
D [auth A]4-[(6-CHLORO-1-BENZOTHIEN-2-YL)SULFONYL]-1-{[1-(2-HYDROXYETHYL)-1H-PYRROLO[3,2-C]PYRIDIN-2-YL]METHYL}PIPERAZIN-2-ONE
C22 H21 Cl N4 O4 S2
NZNFLUOJACWZKX-UHFFFAOYSA-N		 Ligand Interaction
CA
Query on CA
Download Ideal Coordinates CCD File 
C [auth A]CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N		 Ligand Interaction
Binding Affinity Annotations 
IDSourceBinding Affinity
RDR Binding MOAD:  1NFX Ki: 3 (nM) from 1 assay(s)
BindingDB:  1NFX Ki: 3 (nM) from 1 assay(s)
PDBBind:  1NFX Ki: 3 (nM) from 1 assay(s)
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.15 Å
  • R-Value Work: 0.215 
  • R-Value Observed: 0.215 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 56.5α = 90
b = 72.33β = 90
c = 79.67γ = 90
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
AMoREphasing
X-PLORrefinement

Structure Validation

View Full Validation Report



View more in-depth experimental data

Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2003-02-25
    Type: Initial release
  • Version 1.1: 2008-04-29
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance