1UNC

Solution structure of the human villin C-terminal headpiece subdomain


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 25 
  • Selection Criteria: target function 

wwPDB Validation   3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Solution Structures of the C-Terminal Headpiece Subdomains of Human Villin and Advillin, Evaluation of Headpiece F-Actin-Binding Requirements

Vermeulen, W.Vanhaesebrouck, P.Van Troys, M.Verschueren, M.Fant, F.Goethals, M.Ampe, C.Martins, J.Borremans, F.

(2004) Protein Sci 13: 1276

  • DOI: 10.1110/ps.03518104
  • Primary Citation of Related Structures:  
    1UNC, 1UND

  • PubMed Abstract: 
  • Headpiece (HP) is a 76-residue F-actin-binding module at the C terminus of many cytoskeletal proteins. Its 35-residue C-terminal subdomain is one of the smallest known motifs capable of autonomously adopting a stable, folded structure in the absence of any disulfide bridges, metal ligands, or unnatural amino acids ...

    Headpiece (HP) is a 76-residue F-actin-binding module at the C terminus of many cytoskeletal proteins. Its 35-residue C-terminal subdomain is one of the smallest known motifs capable of autonomously adopting a stable, folded structure in the absence of any disulfide bridges, metal ligands, or unnatural amino acids. We report the three-dimensional solution structures of the C-terminal headpiece subdomains of human villin (HVcHP) and human advillin (HAcHP), determined by two-dimensional 1H-NMR. They represent the second and third structures of such C-terminal headpiece subdomains to be elucidated so far. A comparison with the structure of the chicken villin C-terminal subdomain reveals a high structural conservation. Both C-terminal subdomains bind specifically to F-actin. Mutagenesis is used to demonstrate the involvement of Trp 64 in the F-actin-binding surface. The latter residue is part of a conserved structural feature, in which the surface-exposed indole ring is stacked on the proline and lysine side chain embedded in a PXWK sequence motif. On the basis of the structural and mutational data concerning Trp 64 reported here, the results of a cysteine-scanning mutagenesis study of full headpiece, and a phage display mutational study of the 69-74 fragment, we propose a modification of the model, elaborated by Vardar and coworkers, for the binding of headpiece to F-actin.


    Organizational Affiliation

    NMR and Structure Analysis Unit, Department of Organic Chemistry, Faculty of Sciences, Ghent University, 9000 Ghent, Belgium.



Macromolecules
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
VILLIN 1A36Homo sapiensMutation(s): 0 
Gene Names: VIL1VIL
UniProt & NIH Common Fund Data Resources
Find proteins for P09327 (Homo sapiens)
Explore P09327 
Go to UniProtKB:  P09327
PHAROS:  P09327
Entity Groups  
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UniProt GroupP09327
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 500 
  • Conformers Submitted: 25 
  • Selection Criteria: target function 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2004-07-15
    Type: Initial release
  • Version 1.1: 2011-05-08
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance