1CZV

CRYSTAL STRUCTURE OF THE C2 DOMAIN OF HUMAN COAGULATION FACTOR V: DIMERIC CRYSTAL FORM


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.205 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Crystal structures of the membrane-binding C2 domain of human coagulation factor V.

Macedo-Ribeiro, S.Bode, W.Huber, R.Quinn-Allen, M.A.Kim, S.W.Ortel, T.L.Bourenkov, G.P.Bartunik, H.D.Stubbs, M.T.Kane, W.H.Fuentes-Prior, P.

(1999) Nature 402: 434-439

  • DOI: 10.1038/46594
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Rapid and controlled clot formation is achieved through sequential activation of circulating serine proteinase precursors on phosphatidylserine-rich procoagulant membranes of activated platelets and endothelial cells. The homologous complexes Xase an ...

    Rapid and controlled clot formation is achieved through sequential activation of circulating serine proteinase precursors on phosphatidylserine-rich procoagulant membranes of activated platelets and endothelial cells. The homologous complexes Xase and prothrombinase, each consisting of an active proteinase and a non-enzymatic cofactor, perform critical steps within this coagulation cascade. The activated cofactors VIIIa and Va, highly specific for their cognate proteinases, are each derived from precursors with the same A1-A2-B-A3-C1-C2 architecture. Membrane binding is mediated by the C2 domains of both cofactors. Here we report two crystal structures of the C2 domain of human factor Va. The conserved beta-barrel framework provides a scaffold for three protruding loops, one of which adopts markedly different conformations in the two crystal forms. We propose a mechanism of calcium-independent, stereospecific binding of factors Va and VIIIa to phospholipid membranes, on the basis of (1) immersion of hydrophobic residues at the apices of these loops in the apolar membrane core; (2) specific interactions with phosphatidylserine head groups in the groove enclosed by these loops; and (3) favourable electrostatic contacts of basic side chains with negatively charged membrane phosphate groups.


    Organizational Affiliation

    Max-Planck-Institut für Biochemie, Abteilung Strukturforschung, Martinsried, Germany.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
PROTEIN (COAGULATION FACTOR V)
A, B
160Homo sapiensMutation(s): 0 
Gene Names: F5
Find proteins for P12259 (Homo sapiens)
Go to Gene View: F5
Go to UniProtKB:  P12259
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.4 Å
  • R-Value Free: 0.257 
  • R-Value Work: 0.205 
  • Space Group: P 21 21 2
Unit Cell:
Length (Å)Angle (°)
a = 86.520α = 90.00
b = 70.540β = 90.00
c = 60.580γ = 90.00
Software Package:
Software NamePurpose
SCALAdata scaling
CCP4data scaling
X-PLORrefinement
MOSFLMdata reduction
AMoREphasing

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1999-11-26
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance