2ODQ Complement component C2a, the catalytic fragment of C3- and C5-convertase of human complement date
authors Narayana, S.V.L., Krishnan, V.
compound source
R_Free 0.274
length a length b length c angle alpha angle beta angle gamma
method X-Ray Diffractionresolution 2.30
ligand NAG enzyme

Primary referenceThe Crystal Structure of C2a, the Catalytic Fragment of Classical Pathway C3 and C5 Convertase of Human Complement., Krishnan V, Xu Y, Macon K, Volanakis JE, Narayana SV, J Mol Biol. 2006 Dec 19;. PMID:17234210
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (91 Kb) [Save to disk]
  • Biological Unit Coordinates (2odq.pdb1.gz) 83 Kb
  • LPC: Ligand-Protein Contacts for 2ODQ
  • CSU: Contacts of Structural Units for 2ODQ
  • Likely Quarternary Molecular Structure file(s) for 2ODQ
  • Structure Factors (196 Kb)
  • Retrieve 2ODQ in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2ODQ from S2C, [Save to disk]
  • Re-refined 2odq structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2ODQ 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 2ODQ
  • 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 2ODQ, from MSDmotif at EBI
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2odq_A] [2odq]
  • SWISS-PROT database: [P06681]
  • Domain organization of [CO2_HUMAN] by SWISSPFAM
  • Domains found in 2ODQ: [Tryp_SPc] [VWA ] by SMART
  • Other resources with information on 2ODQ
  • Community annotation for 2ODQ 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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