2K8P

Characterisation of the structural features and interactions of sclerostin: molecular insight into a key regulator of Wnt-mediated bone formation


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 36 
  • Selection Criteria: target function 

wwPDB Validation 3D Report Full Report


This is version 1.1 of the entry. See complete history

Literature

Characterization of the Structural Features and Interactions of Sclerostin: Molecular insight into a key regulator of Wnt-mediated bone formation

Veverka, V.Henry, A.J.Slocombe, P.M.Ventom, A.Mulloy, B.Muskett, F.W.Muzylak, M.Greenslade, K.Moore, A.Zhang, L.Gong, J.Qian, X.Paszty, C.Taylor, R.J.Robinson, M.K.Carr, M.D.

(2009) J.Biol.Chem. 284: 10890-10900

  • DOI: 10.1074/jbc.M807994200

  • PubMed Abstract: 
  • The secreted glycoprotein sclerostin has recently emerged as a key negative regulator of Wnt signaling in bone and has stimulated considerable interest as a potential target for therapeutics designed to treat conditions associated with low bone mass, ...

    The secreted glycoprotein sclerostin has recently emerged as a key negative regulator of Wnt signaling in bone and has stimulated considerable interest as a potential target for therapeutics designed to treat conditions associated with low bone mass, such as osteoporosis. We have determined the structure of sclerostin, which resulted in the identification of a previously unknown binding site for heparin, suggestive of a functional role in localizing sclerostin to the surface of target cells. We have also mapped the interaction site for an antibody that blocks the inhibition of Wnt signaling by sclerostin. This shows minimal overlap with the heparin binding site and highlights a key role for this region of sclerostin in protein interactions associated with the inhibition of Wnt signaling. The conserved N- and C-terminal arms of sclerostin were found to be unstructured, highly flexible, and unaffected by heparin binding, which suggests a role in stabilizing interactions with target proteins.


    Organizational Affiliation

    Department of Biochemistry, University of Leicester, Leicester LE1 9HN, United Kingdom.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Sclerostin
A
189Homo sapiensMutation(s): 0 
Gene Names: SOST
Find proteins for Q9BQB4 (Homo sapiens)
Go to Gene View: SOST
Go to UniProtKB:  Q9BQB4
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 36 
  • Selection Criteria: target function 
  • Olderado: 2K8P Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2009-02-17
    Type: Initial release
  • Version 1.1: 2011-07-13
    Type: Version format compliance