1G8Q Immune System date Nov 20, 2000
title Crystal Structure Of Human Cd81 Extracellular Domain, A Rece Hepatitis C Virus
authors K.Kitadokoro, M.Bolognesi, D.Bordo, G.Grandi, G.Galli, R.Petracca
compound source
Molecule: Cd81 Antigen, Extracellular Domain
Chain: A, B
Fragment: Extracellular Domain
Synonym: Cd81, Target Of Antiproliferative Antibody 1, 26 K Surface Protein Tapa-1;
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_vector_type: Plasmid
Expression_system_plasmid: Pezz18
symmetry Space Group: P 1 21 1
R_factor 0.188 R_Free 0.238
length a length b length c angle alpha angle beta angle gamma
31.485 77.172 38.462 90.00 107.39 90.00
method X-Ray Diffractionresolution 1.60 Å
related structures by homologous chain: 1IV5
A, B

Primary referenceCD81 extracellular domain 3D structure: insight into the tetraspanin superfamily structural motifs., Kitadokoro K, Bordo D, Galli G, Petracca R, Falugi F, Abrignani S, Grandi G, Bolognesi M, EMBO J 2001 Jan 15;20(1-2):12-8. PMID:11226150
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (36 Kb) [Save to disk]
  • Biological Unit Coordinates (1g8q.pdb1.gz) 32 Kb
  • CSU: Contacts of Structural Units for 1G8Q
  • Likely Quarternary Molecular Structure file(s) for 1G8Q
  • Structure Factors (219 Kb)
  • Retrieve 1G8Q in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 1G8Q from S2C, [Save to disk]
  • Re-refined 1g8q structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 1G8Q in 3D
  • Proteopedia, because life has more than 2D.
  • On Jmol, a nice Rasmol like molecule viewer. This is good for easiest viewing of basic structure.
  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 1G8Q
  • Cartoon representation from PDB Cartoon
  • Ramachandran plot from PDBSum
  • Structure-derived information
  • Electron Density related parameters from EDS Electron Density Server, at Upsala
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 1G8Q, from MSDmotif at EBI
  • Classification of representative domains in scop (Structural Classification of Proteins)
        - Domain d1g8qa_, region A [Jmol] [rasmolscript] [script source]
        - Domain d1g8qb_, region B [Jmol] [rasmolscript] [script source]
  • Fold representative 1g8q from FSSP and Dali (Families of Structurally Similar Proteins)
  • Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH
  • Summaries and structural analyses of PDB data files from PDBSum
  • Identification of Protein Pockets & Cavities at CASTp
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [1g8q] [1g8q_A] [1g8q_B]
  • SWISS-PROT database: [P60033]
  • Belongs to the tetraspanin (tetraspanin) family according to TCDB.
  • Domain organization of [CD81_HUMAN] by SWISSPFAM
  • Other resources with information on 1G8Q
  • Community annotation for 1G8Q at PDBWiki (http://pdbwiki.org)
  • MMDB (Entrez's Structure Database)
  • Movements, Movies and Images
  • Images from IMB Jena Image Library of Biological Macromolecules.

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