1QH8	Oxidoreductase	date	May 11, 1999
title	Nitrogenase Mofe Protein From Klebsiella Pneumoniae, As-Crys (Mixed Oxidation) State
authors	S.M.Mayer, D.M.Lawson, C.A.Gormal, S.M.Roe, B.E.Smith
compound		source
Molecule: Protein (Nitrogenase Molybdenum Iron Protein) Chain: A, C Synonym: Nitrogenase Component 1 Ec: 1.18.6.1		Organism_scientific: Klebsiella Pneumoniae Organism_taxid: 573 Strain: M5a1 Variant: Wild-Type Cellular_location: Cytoplasm Other_details: Also Known As Klebsiella Pneumoniae Oxytoca.
Molecule: Protein (Nitrogenase Molybdenum Iron Protein) Chain: B, D Synonym: Nitrogenase Component 1 Ec: 1.18.6.1		Organism_scientific: Klebsiella Pneumoniae Organism_taxid: 573 Strain: M5a1 Variant: Wild-Type Cellular_location: Cytoplasm Other_details: Also Known As Klebsiella Pneumoniae Oxytoca.
symmetry	Space Group: C 1 2 1	R_factor 0.155 R_Free 0.197
crystal cell	length a length b length c angle alpha angle beta angle gamma 203.030 74.900 162.120 90.00 122.80 90.00
method	X-Ray Diffraction	resolution	1.60 Å
ligand	CFM, CL, CLF, EDO, HCA, MG	enzyme	Oxidoreductase E.C.1.18.6.1 BRENDA
related structures	by homologous chain: 1M1N, 1QGU
Gene Ontology	Chain Function Process Component A, C D, B
Primary reference	New insights into structure-function relationships in nitrogenase: A 1.6 A resolution X-ray crystallographic study of Klebsiella pneumoniae MoFe-protein., Mayer SM, Lawson DM, Gormal CA, Roe SM, Smith BE, J Mol Biol 1999 Oct 1;292(4):871-91. PMID:10525412

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (373 Kb) [Save to disk] Biological Unit Coordinates (1qh8.pdb1.gz) 364 Kb LPC: Ligand-Protein Contacts for 1QH8 CSU: Contacts of Structural Units for 1QH8 Likely Quarternary Molecular Structure file(s) for 1QH8 Structure Factors (2476 Kb) Retrieve 1QH8 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 1QH8 from S2C, [Save to disk] Re-refined 1qh8 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

View 1QH8 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 1QH8

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 1QH8, from MSDmotif at EBI Classification of representative domains in scop (Structural Classification of Proteins)     - Domain d1qh8a_, region A [Jmol] [rasmolscript] [script source]     - Domain d1qh8b_, region B [Jmol] [rasmolscript] [script source]     - Domain d1qh8c_, region C [Jmol] [rasmolscript] [script source]     - Domain d1qh8d_, region D [Jmol] [rasmolscript] [script source] Class (fold), Architecture (subfold), Topology, Homologous superfamily from CATH Summaries and structural analyses of PDB data files from PDBSum Identification of Protein Pockets & Cavities at CASTp

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [1qh8_B] [1qh8_A] [1qh8_C] [1qh8] [1qh8_D] SWISS-PROT database: [P00466] [P09772] Domain organization of [NIFD_KLEPN] [NIFK_KLEPN] by SWISSPFAM

Other resources with information on 1QH8

Community annotation for 1QH8 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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