2MXD

Solution structure of VPg of porcine sapovirus


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 1.0 of the entry. See complete history

Literature

Solution structure of the porcine sapovirus VPg core reveals a stable three-helical bundle with a conserved surface patch.

Hwang, H.J.Min, H.J.Yun, H.Pelton, J.G.Wemmer, D.E.Cho, K.O.Kim, J.S.Lee, C.W.

(2015) Biochem.Biophys.Res.Commun. 459: 610-616

  • DOI: 10.1016/j.bbrc.2015.02.156

  • PubMed Abstract: 
  • Viral protein genome-linked (VPg) proteins play a critical role in the life cycle of vertebrate and plant positive-sense RNA viruses by acting as a protein primer for genome replication and as a protein cap for translation initiation. Here we report ...

    Viral protein genome-linked (VPg) proteins play a critical role in the life cycle of vertebrate and plant positive-sense RNA viruses by acting as a protein primer for genome replication and as a protein cap for translation initiation. Here we report the solution structure of the porcine sapovirus VPg core (VPg(C)) determined by multi-dimensional NMR spectroscopy. The structure of VPg(C) is composed of three α-helices stabilized by several conserved hydrophobic residues that form a helical bundle core similar to that of feline calicivirus VPg. The putative nucleotide acceptor Tyr956 within the first helix of the core is completely exposed to solvent accessible surface to facilitate nucleotidylation by viral RNA polymerase. Comparison of VPg structures suggests that the surface for nucleotidylation site is highly conserved among the Caliciviridae family, whereas the backbone core structures are different. These structural features suggest that caliciviruses share common mechanisms of VPg-dependent viral replication and translation.


    Organizational Affiliation

    Department of Chemistry, Chonnam National University, Gwangju 500-757, Republic of Korea.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
Viral protein genome-linked
A
62Porcine enteric sapovirusEC: 3.6.1.15, 3.4.22.66, 2.7.7.48
Find proteins for Q9QEJ5 (Porcine enteric sapovirus)
Go to UniProtKB:  Q9QEJ5
Experimental Data & Validation

Experimental Data

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

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2015-04-15
    Type: Initial release