2PUQ

Crystal structure of active site inhibited coagulation factor VIIA in complex with soluble tissue factor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.228 

wwPDB Validation 3D Report Full Report


This is version 1.3 of the entry. See complete history

Literature

Engineering the substrate and inhibitor specificities of human coagulation Factor VIIa

Larsen, K.S.Ostergaard, H.Bjelke, J.R.Olsen, O.H.Rasmussen, H.B.Christensen, L.Kragelund, B.B.Stennicke, H.R.

(2007) Biochem.J. 405: 429-438

  • DOI: 10.1042/BJ20061901

  • PubMed Abstract: 
  • The remarkably high specificity of the coagulation proteases towards macromolecular substrates is provided by numerous interactions involving the catalytic groove and remote exosites. For FVIIa [activated FVII (Factor VII)], the principal initiator o ...

    The remarkably high specificity of the coagulation proteases towards macromolecular substrates is provided by numerous interactions involving the catalytic groove and remote exosites. For FVIIa [activated FVII (Factor VII)], the principal initiator of coagulation via the extrinsic pathway, several exosites have been identified, whereas only little is known about the specificity dictated by the active-site architecture. In the present study, we have profiled the primary P4-P1 substrate specificity of FVIIa using positional scanning substrate combinatorial libraries and evaluated the role of the selective active site in defining specificity. Being a trypsin-like serine protease, FVIIa had P1 specificity exclusively towards arginine and lysine residues. In the S2 pocket, threonine, leucine, phenylalanine and valine residues were the most preferred amino acids. Both S3 and S4 appeared to be rather promiscuous, however, with some preference for aromatic amino acids at both positions. Interestingly, a significant degree of interdependence between the S3 and S4 was observed and, as a consequence, the optimal substrate for FVIIa could not be derived directly from a subsite-directed specificity screen. To evaluate the role of the active-site residues in defining specificity, a series of mutants of FVIIa were prepared at position 239 (position 99 in chymotrypsin), which is considered to be one of the most important residues for determining P2 specificity of the trypsin family members. This was confirmed for FVIIa by marked changes in primary substrate specificity and decreased rates of antithrombin III inhibition. Interestingly, these changes do not necessarily coincide with an altered ability to activate Factor X, demonstrating that inhibitor and macromolecular substrate selectivity may be engineered separately.


    Organizational Affiliation

    Haemostasis Biochemistry, Novo Nordisk A/S, Novo Nordisk Park, DK-2760 Måløv, Denmark. ksln@novonordisk.com




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Coagulation factor VII
L
94Homo sapiensGene Names: F7
EC: 3.4.21.21
Find proteins for P08709 (Homo sapiens)
Go to Gene View: F7
Go to UniProtKB:  P08709
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
Coagulation factor VII
H
254Homo sapiensGene Names: F7
EC: 3.4.21.21
Find proteins for P08709 (Homo sapiens)
Go to Gene View: F7
Go to UniProtKB:  P08709
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
Tissue factor
T
204Homo sapiensGene Names: F3
Find proteins for P13726 (Homo sapiens)
Go to Gene View: F3
Go to UniProtKB:  P13726
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
TRP-TYR-THR-ARG CHLOROMETHYLKETONE INHIBITOR
I
5N/A
Protein Feature View is not available: No corresponding UniProt sequence found.
Small Molecules
Ligands 3 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
CA
Query on CA

Download SDF File 
Download CCD File 
H
CALCIUM ION
Ca
BHPQYMZQTOCNFJ-UHFFFAOYSA-N
 Ligand Interaction
BGC
Query on BGC

Download SDF File 
Download CCD File 
L
BETA-D-GLUCOSE
C6 H12 O6
WQZGKKKJIJFFOK-VFUOTHLCSA-N
 Ligand Interaction
FUC
Query on FUC

Download SDF File 
Download CCD File 
L
ALPHA-L-FUCOSE
C6 H12 O5
SHZGCJCMOBCMKK-SXUWKVJYSA-N
 Ligand Interaction
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.05 Å
  • R-Value Free: 0.273 
  • R-Value Work: 0.228 
  • Space Group: P 1 21 1
Unit Cell:
Length (Å)Angle (°)
a = 78.312α = 90.00
b = 68.827β = 90.74
c = 78.732γ = 90.00
Software Package:
Software NamePurpose
XDSdata scaling
REFMACrefinement
PHASERphasing
PDB_EXTRACTdata extraction
XDSdata reduction

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2007-05-22
    Type: Initial release
  • Version 1.1: 2008-05-01
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Atomic model, Database references, Derived calculations, Non-polymer description, Structure summary, Version format compliance
  • Version 1.3: 2012-12-12
    Type: Other