3EH5	Oxidoreductase	date	Sep 11, 2008
title	Structure Of The Reduced Form Of Cytochrome Ba3 Oxidase From Thermophilus
authors	B.Liu, Y.Chen, T.Doukov, S.M.Soltis, D.Stout, J.A.Fee
compound		source
Molecule: Cytochrome C Oxidase Subunit 1 Chain: A Fragment: Unp Residues 2-562 Synonym: Cytochrome C Oxidase Polypeptide I, Cytochrome C B Subunit I, Cytochrome Cba3 Subunit 1; Ec: 1.9.3.1 Engineered: Yes Mutation: Yes		Organism_scientific: Thermus Thermophilus Organism_taxid: 300852 Strain: Hb8 Gene: Cbaa, Ttha1135 Expression_system: Thermus Thermophilus Expression_system_taxid: 274 Expression_system_strain: Hb8 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pmk18
Molecule: Cytochrome C Oxidase Subunit 2 Chain: B Fragment: Unp Residues 3-168 Synonym: Cytochrome C Oxidase Polypeptide II, Cytochrome C Subunit II, Cytochrome Cba3 Subunit 2; Ec: 1.9.3.1 Engineered: Yes Mutation: Yes		Organism_scientific: Thermus Thermophilus Organism_taxid: 300852 Strain: Hb8 Gene: Cbab, Ctac, Ttha1134 Expression_system: Thermus Thermophilus Expression_system_taxid: 274 Expression_system_strain: Hb8 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pmk18
Molecule: Cytochrome C Oxidase Polypeptide 2a Chain: C Fragment: Unp Residues 2-34 Synonym: Cytochrome C Oxidase Polypeptide Iia, Cytochrome C Subunit Iia, Cytochrome Cba3 Subunit 2a; Ec: 1.9.3.1 Engineered: Yes		Organism_scientific: Thermus Thermophilus Organism_taxid: 300852 Strain: Hb8 Gene: Cbad, Ttha1133 Expression_system: Thermus Thermophilus Expression_system_taxid: 274 Expression_system_strain: Hb8 Expression_system_vector_type: Plasmid Expression_system_plasmid: Pmk18
symmetry	Space Group: P 41 21 2	R_factor 0.197 R_Free 0.257
crystal cell	length a length b length c angle alpha angle beta angle gamma 115.631 115.631 149.169 90.00 90.00 90.00
method	X-Ray Diffraction	resolution	2.80 Å
ligand	BNG, CU1, CUA, HAS, HEM	enzyme	Oxidoreductase E.C.1.9.3.1 BRENDA
Gene Ontology	Chain Function Process Component A cytochrome-c oxidase activit... B cytochrome-c oxidase activit... C
Primary reference	Combined microspectrophotometric and crystallographic examination of chemically reduced and X-ray radiation-reduced forms of cytochrome ba3 oxidase from Thermus thermophilus: structure of the reduced form of the enzyme., Liu B, Chen Y, Doukov T, Soltis SM, Stout CD, Fee JA, Biochemistry. 2009 Feb 10;48(5):820-6. PMID:19140675

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (134 Kb) [Save to disk] Biological Unit Coordinates (3eh5.pdb1.gz) 125 Kb Biological Unit Coordinates (3eh5.pdb2.gz) 93 Kb Biological Unit Coordinates (3eh5.pdb3.gz) 29 Kb Biological Unit Coordinates (3eh5.pdb4.gz) 9 Kb LPC: Ligand-Protein Contacts for 3EH5 CSU: Contacts of Structural Units for 3EH5 Likely Quarternary Molecular Structure file(s) for 3EH5 Structure Factors (492 Kb) Retrieve 3EH5 in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 3EH5 from S2C, [Save to disk] Re-refined 3eh5 structure from PDB_REDO, a databank with updated and optimised macromolecular X-ray diffraction structure models

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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 3EH5, from MSDmotif at EBI

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [3eh5] [3eh5_C] [3eh5_B] [3eh5_A] SWISS-PROT database: [Q5SJ79] [Q5SJ80] [P82543] Belongs to the proton-translocating cytochrome oxidase (cox) superfamily according to TCDB. Domain organization of [COX1_THET8] [COX2_THET8] [COXA_THET8] by SWISSPFAM

Other resources with information on 3EH5

Community annotation for 3EH5 at PDBWiki (http://pdbwiki.org) MMDB (Entrez's Structure Database)

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