2I6U Transferase date Aug 29, 2006
title Crystal Structure Of Ornithine Carbamoyltransferase Complexed With Carbamoyl Phosphate And L-Norvaline From Mycobacterium Tuberculosis (Rv1656) At 2.2 A
authors R.Sankaranarayanan, F.Moradian, L.T.Cherney, C.Garen, M.M.Cherney, M.N.G.James, Tb Structural Genomics Consortium (Tbsgc)
compound source
Molecule: Ornithine Carbamoyltransferase
Chain: A, B, C
Synonym: Otcase
Engineered: Yes
Organism_scientific: Mycobacterium Tuberculosis
Organism_taxid: 1773
Gene: Argf, Rv1656, Mt1694, Mtcy06h11.21
Expression_system: Escherichia Coli
Expression_system_taxid: 562
Expression_system_strain: Bl21(De3)Plyss
Expression_system_plasmid: Pdest17
symmetry Space Group: P 65 2 2
R_factor 0.176 R_Free 0.239
length a length b length c angle alpha angle beta angle gamma
99.149 99.149 463.000 90.00 90.00 120.00
method X-Ray Diffractionresolution 2.20 Å
ligand CP, NVA, SO4 enzyme Transferase E.C. BRENDA
A, C, B

Primary referenceThe crystal structures of ornithine carbamoyltransferase from Mycobacterium tuberculosis and its ternary complex with carbamoyl phosphate and L-norvaline reveal the enzyme's catalytic mechanism., Sankaranarayanan R, Cherney MM, Cherney LT, Garen CR, Moradian F, James MN, J Mol Biol. 2008 Jan 25;375(4):1052-63. Epub 2007 Nov 19. PMID:18062991
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (158 Kb) [Save to disk]
  • Biological Unit Coordinates (2i6u.pdb1.gz) 153 Kb
  • LPC: Ligand-Protein Contacts for 2I6U
  • CSU: Contacts of Structural Units for 2I6U
  • Likely Quarternary Molecular Structure file(s) for 2I6U
  • Structure Factors (481 Kb)
  • Retrieve 2I6U in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 2I6U from S2C, [Save to disk]
  • Re-refined 2i6u structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
  • View 2I6U in 3D
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  • On FirstGlance, an excellent tool for a guided tour on the structure components, by E. Martz.
  • Visual 3D analysis of 2I6U
  • 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 2I6U, from MSDmotif at EBI
  • Fold representative 2i6u from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [2i6u] [2i6u_A] [2i6u_C] [2i6u_B]
  • SWISS-PROT database: [P0A5M8]
  • Domain organization of [OTC_MYCTU] by SWISSPFAM
  • Other resources with information on 2I6U
  • Community annotation for 2I6U 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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