6RKO	Membrane Protein	date	Apr 30, 2019
title	Cryo-Em Structure Of The E. Coli Cytochrome Bd-I Oxidase At Resolution
authors	S.Safarian, A.Hahn, W.Kuehlbrandt, H.Michel
compound		source
Molecule: Cytochrome Bd-I Ubiquinol Oxidase Subunit 2 Chain: B Synonym: Cytochrome Bd-I Oxidase Subunit II,Cytochrome D Ub Oxidase Subunit II; Ec: 7.1.1.7 Engineered: Yes		Organism_scientific: Escherichia Coli (Strain K12) Organism_taxid: 83333 Strain: K12 Gene: Cydb, Cyd-2, B0734, Jw0723 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: C43 Expression_system_variant: Delta Bo3
Molecule: Cytochrome Bd-I Ubiquinol Oxidase Subunit 1 Chain: A Synonym: Cytochrome Bd-I Oxidase Subunit I,Cytochrome D Ubi Oxidase Subunit I; Ec: 7.1.1.7 Engineered: Yes		Organism_scientific: Escherichia Coli (Strain K12) Organism_taxid: 83333 Strain: K12 Gene: Cyda, Cyd-1, B0733, Jw0722 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: C43 Expression_system_variant: Delta Bo3
Molecule: Uncharacterized Protein Ynhf Chain: H Engineered: Yes		Organism_scientific: Escherichia Coli (Strain K12) Organism_taxid: 83333 Strain: K12 Gene: Ynhf, B4602, Jw1649.1 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: C43 Expression_system_variant: Delta Bo3
Molecule: Cytochrome Bd-I Ubiquinol Oxidase Subunit X Chain: X Synonym: Cytochrome Bd-I Oxidase Subunit X,Cytochrome D Ubi Oxidase Subunit X; Ec: 7.1.1.7 Engineered: Yes		Organism_scientific: Escherichia Coli (Strain K12) Organism_taxid: 83333 Strain: K12 Gene: Cydx, Ybgt, B4515, Jw0724 Expression_system: Escherichia Coli Expression_system_taxid: 562 Expression_system_strain: C43 Expression_system_variant: Delta Bo3
symmetry	Space Group: P 1	R_factor R_Free
crystal cell	length a length b length c angle alpha angle beta angle gamma 1.000 1.000 1.000 90.00 90.00 90.00
method	Electron Microscopy	resolution	2.68 Å
ligand	HDD, HEB, OXY, POV, UQ8	enzyme	E.C.7.1.1.7 BRENDA
Gene Ontology	Chain Function Process Component A B H X

Data retrieval

Asymmetric unit, PDB entry: [header only] [complete with coordinates] (140 Kb) [Save to disk] Biological Unit Coordinates (6rko.pdb1.gz) 132 Kb LPC: Ligand-Protein Contacts for 6RKO CSU: Contacts of Structural Units for 6RKO Retrieve 6RKO in mmCIF format [Save to disk] SEQRES to COORDINATES correlation for 6RKO from S2C, [Save to disk]

View 6RKO 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 6RKO

Ramachandran plot from PDBSum

Structure-derived information

Dipole moment, from Dipole Server at Weizmann Institute

Sequence-derived information

View one-letter amino acid or nucleotide sequence for each chain: [6rko_H] [6rko_B] [6rko_A] [6rko_X] SWISS-PROT database: Domain organization of by SWISSPFAM

Other resources with information on 6RKO

Community annotation for 6RKO at PDBWiki (http://pdbwiki.org)

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