1M11

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


Experimental Data Snapshot

  • Method: ELECTRON MICROSCOPY
  • Resolution: 16.0 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

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This is version 1.3 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 U S A 99: 10325-10329

  • DOI: 10.1073/pnas.152161599
  • Primary Citation of Related Structures:  
    1M11

  • 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. It functions to protect cells from complement attack ...

    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
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Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
decay-accelerating factor R243Homo sapiensMutation(s): 0 
Gene Names: CD55CRDAF
Find proteins for P08174 (Homo sapiens)
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Go to UniProtKB:  P08174
NIH Common Fund Data Resources
PHAROS:  P08174
Protein Feature View
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  • Reference Sequence
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Entity ID: 2
MoleculeChainsSequence LengthOrganismDetailsImage
COAT PROTEIN VP1 1278Echovirus E7Mutation(s): 0 
EC: 3.4.22.29 (UniProt), 3.6.1.15 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q914E0 (Echovirus E7)
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Go to UniProtKB:  Q914E0
Protein Feature View
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  • Reference Sequence
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Entity ID: 3
MoleculeChainsSequence LengthOrganismDetailsImage
COAT PROTEIN VP2 2254Echovirus E7Mutation(s): 0 
EC: 3.4.22.29 (UniProt), 3.6.1.15 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q914E0 (Echovirus E7)
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Go to UniProtKB:  Q914E0
Protein Feature View
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  • Reference Sequence
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Entity ID: 4
MoleculeChainsSequence LengthOrganismDetailsImage
COAT PROTEIN VP3 3238Echovirus E7Mutation(s): 0 
EC: 3.4.22.29 (UniProt), 3.6.1.15 (UniProt), 3.4.22.28 (UniProt), 2.7.7.48 (UniProt)
Find proteins for Q914E0 (Echovirus E7)
Explore Q914E0 
Go to UniProtKB:  Q914E0
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: ELECTRON MICROSCOPY
  • Resolution: 16.0 Å
  • Aggregation State: PARTICLE 
  • Reconstruction Method: SINGLE PARTICLE 

Structure Validation

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Entry History 

Deposition Data

Revision History  (Full details and data files)

  • Version 1.0: 2002-08-28
    Type: Initial release
  • Version 1.1: 2008-04-28
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance
  • Version 1.3: 2018-07-18
    Changes: Data collection