2WIN Immune System date May 13, 2009
title C3 Convertase (C3bbb) Stabilized By Scin
authors J.Wu, B.J.Janssen, P.Gros
compound source
Molecule: Complement C3 Beta Chain
Chain: A, C, E, G
Fragment: Complement C3b Beta Chain, Residues 23-667
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606

Molecule: Complement C3b Alpha' Chain
Chain: B, D, F, H
Fragment: Complement C3b Alpha' Chain, Residues 749-1663

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606

Molecule: Complement Factor B
Chain: I, J, K, L
Fragment: Complement Factor B Bb Fragment, Residues 260-764
Engineered: Yes

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Expression_system: Homo Sapiens
Expression_system_taxid: 9606
Expression_system_variant: Gnti-
Expression_system_cell_line: Hek293es
Expression_system_vector: Pupe06.08
Expression_system_plasmid: Pupe06.08-Fbwt

Molecule: Staphylococcal Complement Inhibitor
Chain: M, N, P, Q
Engineered: Yes

Organism_scientific: Staphylococcus Aureus
Organism_taxid: 1280
Expression_system: Escherichia Coli
Expression_system_taxid: 469008
Expression_system_strain: Bl21(De3)
Expression_system_plasmid: Prsetb
symmetry Space Group: P 1 21 1
R_factor 0.253 R_Free 0.268
length a length b length c angle alpha angle beta angle gamma
228.632 121.491 280.783 90.00 91.64 90.00
method X-Ray Diffractionresolution 3.90 Å
ligand BMA, MAN, MG, NAG enzyme Hydrolase E.C. BRENDA
A, E, C, G

F, B, H, D

J, K, I, L

N, P, Q, M

Primary referenceStructural and functional implications of the alternative complement pathway C3 convertase stabilized by a staphylococcal inhibitor., Rooijakkers SH, Wu J, Ruyken M, van Domselaar R, Planken KL, Tzekou A, Ricklin D, Lambris JD, Janssen BJ, van Strijp JA, Gros P, Nat Immunol. 2009 Jul;10(7):721-7. Epub 2009 Jun 7. PMID:19503103
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (2797 Kb) [Save to disk]
  • Biological Unit Coordinates (2win.pdb1.gz) 1367 Kb
  • Biological Unit Coordinates (2win.pdb2.gz) 1424 Kb
  • LPC: Ligand-Protein Contacts for 2WIN
  • CSU: Contacts of Structural Units for 2WIN
  • Likely Quarternary Molecular Structure file(s) for 2WIN
  • Structure Factors (1170 Kb)
  • Retrieve 2WIN in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2WIN from S2C, [Save to disk]
  • Re-refined 2win structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2WIN 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 2WIN
  • 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 2WIN, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2win_J] [2win_B] [2win_H] [2win_C] [2win_F] [2win_M] [2win_Q] [2win_A] [2win_G] [2win_D] [2win_K] [2win] [2win_I] [2win_E] [2win_L] [2win_N] [2win_P]
  • SWISS-PROT database: [P00751] [P01024] [Q6GFB4]
  • Domain organization of [CFAB_HUMAN] [CO3_HUMAN] [SCIN_STAAR] by SWISSPFAM
  • Domains found in 2WIN: [A2M] [A2M_N_2] [A2M_recep] [C345C] [Thiol-ester_cl] [Tryp_SPc] [VWA ] by SMART
  • Other resources with information on 2WIN
  • Community annotation for 2WIN 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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