1ehk Summary

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CRYSTAL STRUCTURE OF THE ABERRANT BA3-CYTOCHROME-C OXIDASE FROM THERMUS THERMOPHILUS

The structure was published by Soulimane, T., Buse, G., Bourenkov, G.P., Bartunik, H.D., Huber, R., and Than, M.E., in 2000 in a paper entitled "Structure and mechanism of the aberrant ba(3)-cytochrome c oxidase from thermus thermophilus." (abstract).

This crystal structure was determined using X-ray diffraction at a resolution of 2.4 Å and deposited in 2000.

The experimental data on which the structure is based was not deposited.

This PDB entry contains a complex of 3 biomacromolecules, namely BA3-TYPE CYTOCHROME-C OXIDASE.

It also contains one or more heterogenic compounds (e.g., ligands, co-factors, ions, modified amino acids, etc.); see here for a complete list.

The molecule most likely forms heterotrimers.

The following tables show cross-reference information to other databases (to obtain a list of all PDB entries sharing the same property or classification, click on the magnifying glass icon):


Chain Name UniProt Name of source organism % of UniProt sequence present in the sample Residues in the sample molecules % of residues observed
A BA3-TYPE CYTOCHROME-C OXIDASE Q5SJ79 (1-562) (COX1_THET8)search Thermus thermophilus HB8search 100% 562 96%
B BA3-TYPE CYTOCHROME-C OXIDASE Q5SJ80 (1-168) (COX2_THET8)search Thermus thermophilus HB8search 99% 168 98%
C BA3-TYPE CYTOCHROME-C OXIDASE P82543 (2-34) (COXA_THET8)search Thermus thermophilus HB8search 97% 33 100%


This entry contains 3 unique UniProt proteins:

UniProt accession Name Organism PDB
Q5SJ79 (1 - 562) BA3-TYPE CYTOCHROME-C OXIDASE Thermus thermophilus HB8
Q5SJ80 (1 - 168) BA3-TYPE CYTOCHROME-C OXIDASE Thermus thermophilus HB8
P82543 (2 - 34) BA3-TYPE CYTOCHROME-C OXIDASE Thermus thermophilus HB8

Chain Structural classification (SCOP) Structural classification (CATH) Sequence family (Pfam)
A (Q5SJ79) Cytochrome c oxidase subunit I-likesearch Cytochrome C Oxidase, chain Asearch PF00115: Cytochrome C and Quinol oxidase polypeptide Isearch
B (Q5SJ80) Periplasmic domain of cytochrome c oxidase subunit IIsearch, Cytochrome c oxidase subunit II-like, transmembrane regionsearch Rhopdopsin 7-helix transmembrane proteinssearch, Cupredoxins - blue copper proteinssearch PF00116: Cytochrome C oxidase subunit II, periplasmic domainsearch, PF09125: Cytochrome C oxidase subunit II, transmembranesearch
C (P82543) Bacterial ba3 type cytochrome c oxidase subunit IIasearch PF08113: Cytochrome c oxidase subunit IIa familysearch

Chain ID Cellular component (GO) Biological process (GO) Molecular function (GO)
A (Q5SJ79) integral component of membranesearch respiratory chainsearch plasma membranesearch membranesearch oxidation-reduction processsearch aerobic respirationsearch hydrogen ion transmembrane transportsearch oxidative phosphorylationsearch proton transportsearch ion transportsearch electron carrier activitysearch iron ion bindingsearch cytochrome-c oxidase activitysearch heme bindingsearch oxidoreductase activitysearch metal ion bindingsearch
B (Q5SJ80) membranesearch integral component of membranesearch plasma membranesearch respiratory chainsearch electron transport chainsearch hydrogen ion transmembrane transportsearch oxidation-reduction processsearch copper ion bindingsearch cytochrome-c oxidase activitysearch metal ion bindingsearch oxidoreductase activitysearch
C (P82543) respiratory chainsearch plasma membranesearch membranesearch integral component of membranesearch proton transportsearch hydrogen ion transmembrane transportsearch oxidation-reduction processsearch ion transportsearch oxidoreductase activitysearch cytochrome-c oxidase activitysearch

Chain InterPro annotation
A Cytochrome c oxidase subunit Isearch Cytochrome c oxidase, subunit I, copper-binding sitesearch Cytochrome c oxidase, subunit I domainsearch
B Copper centre Cu(A)search Cytochrome c oxidase subunit II C-terminalsearch Cupredoxinsearch Cytochrome C oxidase subunit II, transmembrane domainsearch Cytochrome C oxidase subunit IIa, transmembrane domainsearch GPCR, rhodopsin-like, 7TMsearch
C Cytochrome c oxidase polypeptide 2Asearch