2A74 Immune System date Jul 04, 2005
title Human Complement Component C3c
authors B.J.C.Janssen, E.G.Huizinga, H.C.A.Raaijmakers, A.Roos, M.R.Daha K.Nilsson-Ekdahl, B.Nilsson, P.Gros
compound source
Molecule: Complement Component C3c
Chain: A, D
Fragment: Residues 23-665
Other_details: Mature C3 Is Made Up Three Fragments A, B An Covalently Linked With S-S Bond;
Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Other_details: Serum

Molecule: Complement Component C3c
Chain: B, E
Fragment: Residues 749-936

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Other_details: Serum

Molecule: Complement Component C3c
Chain: C, F
Fragment: Esidues 1321-1663

Organism_scientific: Homo Sapiens
Organism_common: Human
Organism_taxid: 9606
Other_details: Serum
symmetry Space Group: P 21 21 2
R_factor 0.215 R_Free 0.275
crystal
cell
length a length b length c angle alpha angle beta angle gamma
126.866 246.863 87.383 90.00 90.00 90.00
method X-Ray Diffractionresolution 2.40 Å
ligand GOL, NDG, NO3 enzyme
Gene
Ontology
ChainFunctionProcessComponent
A, D


E, B


F, C


Primary referenceStructures of complement component C3 provide insights into the function and evolution of immunity., Janssen BJ, Huizinga EG, Raaijmakers HC, Roos A, Daha MR, Nilsson-Ekdahl K, Nilsson B, Gros P, Nature. 2005 Sep 22;437(7058):505-11. PMID:16177781
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (373 Kb) [Save to disk]
  • Biological Unit Coordinates (2a74.pdb1.gz) 184 Kb
  • Biological Unit Coordinates (2a74.pdb2.gz) 184 Kb
  • LPC: Ligand-Protein Contacts for 2A74
  • CSU: Contacts of Structural Units for 2A74
  • Likely Quarternary Molecular Structure file(s) for 2A74
  • Structure Factors (924 Kb)
  • Retrieve 2A74 in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2A74 from S2C, [Save to disk]
  • Re-refined 2a74 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2A74 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 2A74
  • 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 2A74, from MSDmotif at EBI
  • Fold representative 2a74 from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2a74_B] [2a74_E] [2a74_D] [2a74_A] [2a74] [2a74_C] [2a74_F]
  • SWISS-PROT database: [P01024]
  • Domain organization of [CO3_HUMAN] by SWISSPFAM
  • Domains found in 2A74: [A2M] [A2M_N_2] [A2M_recep] [C345C ] by SMART
  • Other resources with information on 2A74
  • Community annotation for 2A74 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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