3HNB

Factor VIII Trp2313-His2315 segment is involved in membrane binding as shown by crystal structure of complex between factor VIII C2 domain and an inhibitor


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.15 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.187 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history


Literature

Trp2313-His2315 of factor VIII C2 domain is involved in membrane binding: structure of a complex between the C2 domain and an inhibitor of membrane binding.

Liu, Z.Lin, L.Yuan, C.Nicolaes, G.A.Chen, L.Meehan, E.J.Furie, B.Furie, B.Huang, M.

(2010) J Biol Chem 285: 8824-8829

  • DOI: 10.1074/jbc.M109.080168
  • Structures With Same Primary Citation

  • PubMed Abstract: 
  • Factor VIII (FVIII) plays a critical role in blood coagulation by forming the tenase complex with factor IXa and calcium ions on a membrane surface containing negatively charged phospholipids. The tenase complex activates factor X during blood coagul ...

    Factor VIII (FVIII) plays a critical role in blood coagulation by forming the tenase complex with factor IXa and calcium ions on a membrane surface containing negatively charged phospholipids. The tenase complex activates factor X during blood coagulation. The carboxyl-terminal C2 domain of FVIII is the main membrane-binding and von Willebrand factor-binding region of the protein. Mutations of FVIII cause hemophilia A, whereas elevation of FVIII activity is a risk factor for thromboembolic diseases. The C2 domain-membrane interaction has been proposed as a target of intervention for regulation of blood coagulation. A number of molecules that interrupt FVIII or factor V (FV) binding to cell membranes have been identified through high throughput screening or structure-based design. We report crystal structures of the FVIII C2 domain under three new crystallization conditions, and a high resolution (1.15 A) crystal structure of the FVIII C2 domain bound to a small molecular inhibitor. The latter structure shows that the inhibitor binds to the surface of an exposed beta-strand of the C2 domain, Trp(2313)-His(2315). This result indicates that the Trp(2313)-His(2315) segment is an important constituent of the membrane-binding motif and provides a model to understand the molecular mechanism of the C2 domain membrane interaction.


    Organizational Affiliation

    State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian 350002, China.



Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Coagulation factor VIIIM159Homo sapiensMutation(s): 0 
Gene Names: F8F8C
Find proteins for P00451 (Homo sapiens)
Explore P00451 
Go to UniProtKB:  P00451
NIH Common Fund Data Resources
PHAROS  P00451
Protein Feature View
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  • Reference Sequence
Small Molecules
Ligands 1 Unique
IDChainsName / Formula / InChI Key2D Diagram3D Interactions
768
Query on 768

Download CCD File 
M
(2R)-1-(2,4-dichlorophenoxy)-3-[(2E)-2-imino-3-(2-piperidin-1-ylethyl)-2,3-dihydro-1H-benzimidazol-1-yl]propan-2-ol
C23 H28 Cl2 N4 O2
QMRFKZWWZBZQKJ-MVXIZWJUSA-N
 Ligand Interaction
External Ligand Annotations 
IDBinding Affinity (Sequence Identity %)
768IC50 :  7800   nM  PDBBind
768IC50:  7800   nM  BindingDB
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 1.15 Å
  • R-Value Free: 0.220 
  • R-Value Work: 0.185 
  • R-Value Observed: 0.187 
  • Space Group: P 21 21 21
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 42.054α = 90
b = 55.775β = 90
c = 67.971γ = 90
Software Package:
Software NamePurpose
SCALAdata scaling
REFMACrefinement
PDB_EXTRACTdata extraction
HKL-2000data collection
HKL-2000data reduction
HKL-2000data scaling
MOLREPphasing

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

  • Deposited Date: 2009-05-31 
  • Released Date: 2010-01-19 
  • Deposition Author(s): Liu, Z., Yuan, C.

Revision History 

  • Version 1.0: 2010-01-19
    Type: Initial release
  • Version 1.1: 2011-07-13
    Changes: Version format compliance