Experimental Data Snapshot

  • Resolution: 2.35 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.191 

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Hinge bending within the cytokine receptor superfamily revealed by the 2.4 A crystal structure of the extracellular domain of rabbit tissue factor.

Muller, Y.A.Kelley, R.F.de Vos, A.M.

(1998) Protein Sci 7: 1106-1115

  • DOI: https://doi.org/10.1002/pro.5560070504
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 

    Tissue factor (TF), a member of the cytokine receptor superfamily, is the obligate cofactor of coagulation factor VIIa (FVIIa), and has a pivotal role in initiating the extrinsic pathway of blood coagulation through formation of the TF x FVIIa complex. The crystal structure of the extracellular portion of rabbit TF has been solved at 2.35 A resolution and refined to a crystallographic R-value of 19.1% (free R-value, 27.7%). Like the human homologue, the extracellular portion consists of two fibronectin type III domains connected by a short alpha-helical segment. Unexpectedly, the two molecules in the crystallographic asymmetric unit differ in their relative domain-domain orientation, revealing unsuspected hinge motion consisting of a rotation of about 12.7 degrees around an axis intersecting the linker segment at residue 106. Superposition of rabbit tissue factor with free and bound human tissue factor allows for the detection of an identical, albeit smaller, hinge motion in human TF induced upon binding of FVIIa. This raises the possibility that a very similar hinge axis may be present in other members of the cytokine receptor superfamily.

  • Organizational Affiliation

    Forschungsgruppe Kristallographie, Max-Delbrück-Centrum für Molekulare Medizin, Berlin-Buch, Germany. yam@mdc-berlin.de

Find similar proteins by:  (by identity cutoff)  |  3D Structure
Entity ID: 1
MoleculeChains Sequence LengthOrganismDetailsImage
A, B
219Oryctolagus cuniculusMutation(s): 0 
Gene Names: F3
Find proteins for P24055 (Oryctolagus cuniculus)
Explore P24055 
Go to UniProtKB:  P24055
Entity Groups  
Sequence Clusters30% Identity50% Identity70% Identity90% Identity95% Identity100% Identity
UniProt GroupP24055
Sequence Annotations
  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Resolution: 2.35 Å
  • R-Value Free: 0.278 
  • R-Value Work: 0.191 
  • R-Value Observed: 0.191 
  • Space Group: P 1
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.54α = 96.06
b = 49.01β = 99.11
c = 65.01γ = 91.14
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
X-PLORmodel building

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 1998-05-27
    Type: Initial release
  • Version 1.1: 2008-03-24
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2023-08-02
    Changes: Database references, Refinement description