4TKU Oxidoreductase date May 27, 2014
title Reactivated Nitrogenase Mofe-Protein From A. Vinelandii
authors T.Spatzal, K.Perez, O.Einsle, J.B.Howard, D.C.Rees
compound source
Molecule: Nitrogenase Molybdenum-Iron Protein Alpha Chain
Chain: A, C
Synonym: Dinitrogenase,Nitrogenase Component I
Organism_scientific: Azotobacter Vinelandii
Organism_taxid: 354

Molecule: Nitrogenase Molybdenum-Iron Protein Beta Chain
Chain: B, D
Synonym: Dinitrogenase,Nitrogenase Component I

Organism_scientific: Azotobacter Vinelandii
Organism_taxid: 354
symmetry Space Group: P 1 21 1
R_factor 0.132 R_Free 0.142
length a length b length c angle alpha angle beta angle gamma
80.941 130.785 107.005 90.00 110.58 90.00
method X-Ray Diffractionresolution 1.43 Å
ligand CL, CLF, FE2, HCA, ICS, IMD enzyme Oxidoreductase E.C. BRENDA
A, C

D, B

Primary referenceLigand binding to the FeMo-cofactor: structures of CO-bound and reactivated nitrogenase., Spatzal T, Perez KA, Einsle O, Howard JB, Rees DC, Science. 2014 Sep 26;345(6204):1620-3. doi: 10.1126/science.1256679. PMID:25258081
Data retrieval
  • Asymmetric unit, PDB entry: [header only] [complete with coordinates] (721 Kb) [Save to disk]
  • Biological Unit Coordinates (4tku.pdb1.gz) 712 Kb
  • LPC: Ligand-Protein Contacts for 4TKU
  • CSU: Contacts of Structural Units for 4TKU
  • Structure Factors (20535 Kb)
  • Retrieve 4TKU in mmCIF format [Save to disk]
  • SEQRES to COORDINATES correlation for 4TKU from S2C, [Save to disk]
  • Re-refined 4tku structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models
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  • Visual 3D analysis of 4TKU
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  • Structure-derived information
  • Dipole moment, from Dipole Server at Weizmann Institute
  • Crystal Contacts, from CryCo at Weizmann Institute
  • 3D motif for 4TKU, from MSDmotif at EBI
  • Fold representative 4tku from FSSP and Dali (Families of Structurally Similar Proteins)
  • Sequence-derived information
  • View one-letter amino acid or nucleotide sequence for each chain: [4tku_D] [4tku_A] [4tku] [4tku_C] [4tku_B]
  • SWISS-PROT database:
  • Domain organization of by SWISSPFAM
  • Other resources with information on 4TKU
  • Community annotation for 4TKU at PDBWiki (http://pdbwiki.org)

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