1IV5

New Crystal Form of Human CD81 Large Extracellular Loop.


Experimental Data Snapshot

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.234 

wwPDB Validation 3D Report Full Report


This is version 1.2 of the entry. See complete history


Literature

Subunit Association and Conformational Flexibility in the Head-subdomain of Human CD81 Large Extracellular Loop.

Kitadokoro, K.Ponassi, M.Galli, G.Petracca, R.Falugi, F.Grandi, G.Bolognesi, M.

(2002) Biol Chem 383: 1447-1452

  • DOI: 10.1515/BC.2002.164
  • Primary Citation of Related Structures:  
    1IV5

  • PubMed Abstract: 
  • The large extracellular loop of human CD81, a tetraspanin mediating hepatitis C virus envelope protein E2 binding to human cells, has been crystallized in a hexagonal form. The three-dimensional structure, solved and refined at 2.6 A resolution (R-fa ...

    The large extracellular loop of human CD81, a tetraspanin mediating hepatitis C virus envelope protein E2 binding to human cells, has been crystallized in a hexagonal form. The three-dimensional structure, solved and refined at 2.6 A resolution (R-factor = 22.8%), shows that the protein adopts a dimeric assembly, based on an association interface built up by tetraspanin-conserved residues. Structural comparisons with the tertiary structure of human CD81 large extracellular loop, previously determined in a different crystal form, show marked conformational fluctuations in the molecular regions thought to be involved in binding to the viral protein, suggesting rules for recognition and assembly within the tetraspan web.


    Organizational Affiliation

    Department of Physics-INFM, Center of Excellence for Biomedical Research, University of Genoa, Italy.



Macromolecules
Find similar proteins by:  (by identity cutoff)  |  Structure
Entity ID: 1
MoleculeChainsSequence LengthOrganismDetailsImage
CD81 antigenAB90Homo sapiensMutation(s): 0 
Gene Names: CD81TAPA1TSPAN28
Find proteins for P60033 (Homo sapiens)
Explore P60033 
Go to UniProtKB:  P60033
NIH Common Fund Data Resources
PHAROS  P60033
Protein Feature View
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  • Reference Sequence
Experimental Data & Validation

Experimental Data

  • Method: X-RAY DIFFRACTION
  • Resolution: 2.60 Å
  • R-Value Free: 0.282 
  • R-Value Work: 0.229 
  • R-Value Observed: 0.234 
  • Space Group: P 64
Unit Cell:
Length ( Å )Angle ( ˚ )
a = 102.052α = 90
b = 102.052β = 90
c = 35.283γ = 120
Software Package:
Software NamePurpose
DENZOdata reduction
SCALEPACKdata scaling
EPMRphasing
REFMACrefinement

Structure Validation

View Full Validation Report



Entry History 

Deposition Data

Revision History 

  • Version 1.0: 2003-01-28
    Type: Initial release
  • Version 1.1: 2008-04-27
    Changes: Version format compliance
  • Version 1.2: 2011-07-13
    Changes: Version format compliance