1K7B

NMR Solution Structure of sTva47, the Viral-Binding Domain of Tva


Experimental Data Snapshot

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

The solution structure of the viral binding domain of Tva, the cellular receptor for subgroup A avian leukosis and sarcoma virus.

Tonelli, M.Peters, R.J.James, T.L.Agard, D.A.

(2001) FEBS Lett. 509: 161-168


  • PubMed Abstract: 
  • The cellular receptor for subgroup A avian leukosis and sarcoma virus (ALSV-A) is Tva, which contains a motif related to repeats in the low density lipoprotein receptor (LDLR) ligand binding repeat (LBr) and which is necessary for viral entry. As obs ...

    The cellular receptor for subgroup A avian leukosis and sarcoma virus (ALSV-A) is Tva, which contains a motif related to repeats in the low density lipoprotein receptor (LDLR) ligand binding repeat (LBr) and which is necessary for viral entry. As observed with LBr repeats of LDLR, the 47 residue LBr domain of Tva (sTva47) requires calcium during oxidative folding to form the correct disulfide bonds, and calcium enhances the structure of correctly oxidized sTva47, as well as its ability to bind the viral envelope protein (Env). However, solution nuclear magnetic resonance studies indicate that, even in the presence of excess calcium, sTva47 exists in an ensemble of conformations. Nonetheless, as reported here, the structure of the predominant sTva47 solution conformer closely resembles that of other LBr repeats, with identical S-S binding topology and octahedral calcium coordination. The location of W48 and other critical residues on the surface suggests a region of the molecule necessary for Env binding and to mediate post-binding events important for ALSV-A cell entry.


    Organizational Affiliation

    The Howard Hughes Medical Institute, University of California, San Francisco 94143, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
SUBGROUP A ROUS SARCOMA VIRUS RECEPTOR PG800 AND PG950
A
47Coturnix coturnix japonicaN/A
Find proteins for P98162 (Coturnix coturnix japonica)
Go to UniProtKB:  P98162
Experimental Data & Validation

Experimental Data

  • Method: SOLUTION NMR
  • Conformers Calculated: 100 
  • Conformers Submitted: 20 
  • Selection Criteria: structures with the lowest energy 
  • Olderado: 1K7B Olderado

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2001-12-19
    Type: Initial release
  • Version 1.1: 2008-04-27
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance