2QOS Immune System date Jul 20, 2007
title Crystal Structure Of Complement Protein C8 In Complex With A Containing The C8 Binding Site On C8
authors L.L.Lovelace, B.Chiswell, D.J.Slade, J.M.Sodetz, L.Lebioda
compound source
Molecule: Complement Component 8, Gamma Polypeptide
Chain: C
Engineered: Yes
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Gene: C8g
Expression_system: Escherichia Coli
Expression_system_taxid: 562

Molecule: Complement Component C8 Alpha Chain
Chain: A
Synonym: Complement Component 8 Subunit Alpha
Engineered: Yes

Synthetic: Yes
Other_details: This Sequence Has Been Modified From The Hum
symmetry Space Group: P 21 21 2
R_factor 0.204 R_Free 0.244
crystal
cell
length a length b length c angle alpha angle beta angle gamma
59.942 85.251 41.899 90.00 90.00 90.00
method X-Ray Diffractionresolution 1.81 Å
Gene
Ontology
ChainFunctionProcessComponent
C


Primary referenceCrystal structure of complement protein C8gamma in complex with a peptide containing the C8gamma binding site on C8alpha: Implications for C8gamma ligand binding., Lovelace LL, Chiswell B, Slade DJ, Sodetz JM, Lebioda L, Mol Immunol. 2008 Feb;45(3):750-6. Epub 2007 Aug 9. PMID:17692377
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (36 Kb) [Save to disk]
  • Biological Unit Coordinates (2qos.pdb1.gz) 32 Kb
  • CSU: Contacts of Structural Units for 2QOS
  • Likely Quarternary Molecular Structure file(s) for 2QOS
  • Structure Factors (158 Kb)
  • Retrieve 2QOS in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2QOS from S2C, [Save to disk]
  • Re-refined 2qos structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2QOS 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 2QOS
  • 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
  • 3D motif for 2QOS, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2qos_C] [2qos_A] [2qos]
  • SWISS-PROT database: [P07357] [P07360]
  • Belongs to the membrane attack complex/perforin (macpf) family according to TCDB.
  • Domain organization of [CO8A_HUMAN] [CO8G_HUMAN] by SWISSPFAM
  • Other resources with information on 2QOS
  • Community annotation for 2QOS 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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