1WHE

COAGULATION FACTOR, NMR, 20 STRUCTURES


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 

wwPDB Validation 3D Report Full Report


This is version 1.4 of the entry. See complete history

Literature

The relative orientation of Gla and EGF domains in coagulation factor X is altered by Ca2+ binding to the first EGF domain. A combined NMR-small angle X-ray scattering study.

Sunnerhagen, M.Olah, G.A.Stenflo, J.Forsen, S.Drakenberg, T.Trewhella, J.

(1996) Biochemistry 35: 11547-11559

  • DOI: 10.1021/bi960633j
  • Primary Citation of Related Structures:  

  • PubMed Abstract: 
  • Coagulation factor X is a serine protease containing three noncatalytic domains: an N-terminal gamma-carboxyglutamic acid (Gla)1 domain followed by two epidermal growth factor (EGF)-like domains. The isolated N-terminal EGF domain binds Ca2+ with a K ...

    Coagulation factor X is a serine protease containing three noncatalytic domains: an N-terminal gamma-carboxyglutamic acid (Gla)1 domain followed by two epidermal growth factor (EGF)-like domains. The isolated N-terminal EGF domain binds Ca2+ with a Kd of 10(-3) M. When linked to the Gla domain, however, its Ca2+ affinity is increased 10-fold. In this paper, we present the NMR solution structure of the factor X Gla-EGF domain pair with Ca2+ bound to the EGF domain, as well as small angle X-ray scattering (SAXS) data on the Gla-EGF domain pair with and without Ca2+. Our results show that Ca2+ binding to the EGF domain makes the Gla and EGF domains fold toward each other using the Ca2+ site as a hinge. Presumably, a similar mechanism may be responsible for alterations in the relative orientation of protein domains in many other extracellular proteins containing EGF domains with the consensus for Ca2+ binding. The results of the NMR and SAXS measurements reported in this paper confirm our previous result that the Gla domain is folded also in its apo state when linked to the EGF domain [Sunnerhagen, M., et al. (1995) Nat. Struct. Biol. 2, 504-509]. Finally, our study clearly demonstrates the powerful combination of NMR and SAXS in the study of modular proteins, since this enables reliable evaluation of both short-range (NMR) and long-range interactions (SAXS).


    Related Citations: 
    • Three-Dimensional Structure of the Apo Form of the N-Terminal Egf-Like Module of Blood Coagulation Factor X as Determined by NMR Spectroscopy and Simulated Folding
      Ullner, M.,Selander, M.,Persson, E.,Stenflo, J.,Drakenberg, T.,Teleman, O.
      (1992) Biochemistry 31: 5974
    • How an Epidermal Growth Factor (Egf)-Like Domain Binds Calcium. High Resolution NMR Structure of the Calcium Form of the NH2-Terminal Egf-Like Domain in Coagulation Factor X
      Selander-Sunnerhagen, M.,Ullner, M.,Persson, E.,Teleman, O.,Stenflo, J.,Drakenberg, T.
      (1992) J.Biol.Chem. 267: 19642
    • Structure of the Ca(2+)-Free Gla Domain Sheds Light on Membrane Binding of Blood Coagulation Proteins
      Sunnerhagen, M.,Forsen, S.,Hoffren, A.M.,Drakenberg, T.,Teleman, O.,Stenflo, J.
      (1995) Nat.Struct.Mol.Biol. 2: 504


    Organizational Affiliation

    Chemical Center, Lund University, Sweden.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
COAGULATION FACTOR X
A
86Bos taurusMutation(s): 0 
Gene Names: F10
EC: 3.4.21.6
Find proteins for P00743 (Bos taurus)
Go to Gene View: F10
Go to UniProtKB:  P00743
Small Molecules
Modified Residues  2 Unique
IDChainsTypeFormula2D DiagramParent
BHD
Query on BHD
A
L-PEPTIDE LINKINGC4 H7 N O5ASP
CGU
Query on CGU
A
L-PEPTIDE LINKINGC6 H9 N O6GLU
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Submitted: 20 
  • Olderado: 1WHE Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 1997-05-15
    Type: Initial release
  • Version 1.1: 2008-03-24
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance
  • Version 1.3: 2012-06-20
    Type: Non-polymer description
  • Version 1.4: 2017-11-29
    Type: Derived calculations, Other