1M11

structural model of human decay-accelerating factor bound to echovirus 7 from cryo-electron microscopy


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history

Literature

Structure of decay-accelerating factor bound to echovirus 7: a virus-receptor complex.

He, Y.Lin, F.Chipman, P.R.Bator, C.M.Baker, T.S.Shoham, M.Kuhn, R.J.Medof, M.E.Rossmann, M.G.

(2002) Proc.Natl.Acad.Sci.USA 99: 10325-10329

  • DOI: 10.1073/pnas.152161599

  • PubMed Abstract: 
  • Echoviruses are enteroviruses that belong to Picornaviridae. Many echoviruses use decay-accelerating factor (DAF) as their cellular receptor. DAF is a glycosylphosphatidyl inositol-anchored complement regulatory protein found on most cell surfaces. I ...

    Echoviruses are enteroviruses that belong to Picornaviridae. Many echoviruses use decay-accelerating factor (DAF) as their cellular receptor. DAF is a glycosylphosphatidyl inositol-anchored complement regulatory protein found on most cell surfaces. It functions to protect cells from complement attack. The cryo-electron microscopy reconstructions of echovirus 7 complexed with DAF show that the DAF-binding regions are located close to the icosahedral twofold axes, in contrast to other enterovirus complexes where the viral canyon is the receptor binding site. This novel receptor binding position suggests that DAF is important for the attachment of viral particles to host cells, but probably not for initiating viral uncoating, as is the case with canyon-binding receptors. Thus, a different cell entry mechanism must be used for enteroviruses that bind DAF.


    Organizational Affiliation

    Department of Biological Sciences, Purdue University, West Lafayette, IN 47907-1392, USA.




Macromolecules

Find similar proteins by: Sequence  |  Structure

Entity ID: 1
MoleculeChainsSequence LengthOrganismDetails
decay-accelerating factor
R
243Homo sapiensGene Names: CD55 (CR, DAF)
Find proteins for P08174 (Homo sapiens)
Go to Gene View: CD55
Go to UniProtKB:  P08174
Entity ID: 2
MoleculeChainsSequence LengthOrganismDetails
COAT PROTEIN VP1
1
278Echovirus E7N/A
Find proteins for Q914E0 (Echovirus E7)
Go to UniProtKB:  Q914E0
Entity ID: 3
MoleculeChainsSequence LengthOrganismDetails
COAT PROTEIN VP2
2
254Echovirus E7N/A
Find proteins for Q914E0 (Echovirus E7)
Go to UniProtKB:  Q914E0
Entity ID: 4
MoleculeChainsSequence LengthOrganismDetails
COAT PROTEIN VP3
3
238Echovirus E7N/A
Find proteins for Q914E0 (Echovirus E7)
Go to UniProtKB:  Q914E0
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 16 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

View Full Validation Report or Ramachandran Plots



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2002-08-28
    Type: Initial release
  • Version 1.1: 2008-04-28
    Type: Version format compliance
  • Version 1.2: 2011-07-13
    Type: Version format compliance