COX7B_PONAB
ID COX7B_PONAB Reviewed; 80 AA.
AC Q5R9K2;
DT 13-SEP-2005, integrated into UniProtKB/Swiss-Prot.
DT 21-DEC-2004, sequence version 1.
DT 25-MAY-2022, entry version 69.
DE RecName: Full=Cytochrome c oxidase subunit 7B, mitochondrial;
DE AltName: Full=Cytochrome c oxidase polypeptide VIIb;
DE Flags: Precursor;
GN Name=COX7B;
OS Pongo abelii (Sumatran orangutan) (Pongo pygmaeus abelii).
OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; Mammalia;
OC Eutheria; Euarchontoglires; Primates; Haplorrhini; Catarrhini; Hominidae;
OC Pongo.
OX NCBI_TaxID=9601;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE MRNA].
RC TISSUE=Heart;
RG The German cDNA consortium;
RL Submitted (NOV-2004) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Component of the cytochrome c oxidase, the last enzyme in the
CC mitochondrial electron transport chain which drives oxidative
CC phosphorylation. The respiratory chain contains 3 multisubunit
CC complexes succinate dehydrogenase (complex II, CII), ubiquinol-
CC cytochrome c oxidoreductase (cytochrome b-c1 complex, complex III,
CC CIII) and cytochrome c oxidase (complex IV, CIV), that cooperate to
CC transfer electrons derived from NADH and succinate to molecular oxygen,
CC creating an electrochemical gradient over the inner membrane that
CC drives transmembrane transport and the ATP synthase. Cytochrome c
CC oxidase is the component of the respiratory chain that catalyzes the
CC reduction of oxygen to water. Electrons originating from reduced
CC cytochrome c in the intermembrane space (IMS) are transferred via the
CC dinuclear copper A center (CU(A)) of subunit 2 and heme A of subunit 1
CC to the active site in subunit 1, a binuclear center (BNC) formed by
CC heme A3 and copper B (CU(B)). The BNC reduces molecular oxygen to 2
CC water molecules using 4 electrons from cytochrome c in the IMS and 4
CC protons from the mitochondrial matrix (By similarity). Plays a role in
CC proper central nervous system (CNS) development in vertebrates (By
CC similarity). {ECO:0000250|UniProtKB:P13183,
CC ECO:0000250|UniProtKB:P24311}.
CC -!- PATHWAY: Energy metabolism; oxidative phosphorylation.
CC {ECO:0000250|UniProtKB:P13183}.
CC -!- SUBUNIT: Component of the cytochrome c oxidase (complex IV, CIV), a
CC multisubunit enzyme composed of 14 subunits. The complex is composed of
CC a catalytic core of 3 subunits MT-CO1, MT-CO2 and MT-CO3, encoded in
CC the mitochondrial DNA, and 11 supernumerary subunits COX4I, COX5A,
CC COX5B, COX6A, COX6B, COX6C, COX7A, COX7B, COX7C, COX8 and NDUFA4, which
CC are encoded in the nuclear genome. The complex exists as a monomer or a
CC dimer and forms supercomplexes (SCs) in the inner mitochondrial
CC membrane with NADH-ubiquinone oxidoreductase (complex I, CI) and
CC ubiquinol-cytochrome c oxidoreductase (cytochrome b-c1 complex, complex
CC III, CIII), resulting in different assemblies (supercomplex
CC SCI(1)III(2)IV(1) and megacomplex MCI(2)III(2)IV(2)).
CC {ECO:0000250|UniProtKB:P13183}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC {ECO:0000250|UniProtKB:P13183}; Single-pass membrane protein
CC {ECO:0000250|UniProtKB:P13183}.
CC -!- SIMILARITY: Belongs to the cytochrome c oxidase VIIb family.
CC {ECO:0000305}.
CC ---------------------------------------------------------------------------
CC Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC ---------------------------------------------------------------------------
DR EMBL; CR859385; CAH91558.1; -; mRNA.
DR RefSeq; NP_001125916.1; NM_001132444.1.
DR AlphaFoldDB; Q5R9K2; -.
DR STRING; 9601.ENSPPYP00000022941; -.
DR Ensembl; ENSPPYT00000023908; ENSPPYP00000022941; ENSPPYG00000020494.
DR GeneID; 100172849; -.
DR KEGG; pon:100172849; -.
DR CTD; 1349; -.
DR eggNOG; ENOG502S9DG; Eukaryota.
DR GeneTree; ENSGT00390000012178; -.
DR HOGENOM; CLU_172656_0_0_1; -.
DR InParanoid; Q5R9K2; -.
DR OMA; GATFCIT; -.
DR OrthoDB; 1571716at2759; -.
DR TreeFam; TF105068; -.
DR UniPathway; UPA00705; -.
DR Proteomes; UP000001595; Chromosome X.
DR GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR GO; GO:0005751; C:mitochondrial respiratory chain complex IV; IEA:Ensembl.
DR GO; GO:0004129; F:cytochrome-c oxidase activity; IEA:InterPro.
DR GO; GO:0007417; P:central nervous system development; ISS:UniProtKB.
DR GO; GO:0006119; P:oxidative phosphorylation; IEA:UniProtKB-UniPathway.
DR CDD; cd01403; Cyt_c_Oxidase_VIIb; 1.
DR Gene3D; 4.10.51.10; -; 1.
DR InterPro; IPR008433; Cyt_c_oxidase_suVIIB.
DR InterPro; IPR023272; Cyt_c_oxidase_suVIIB_dom_sf.
DR PANTHER; PTHR16716; PTHR16716; 1.
DR Pfam; PF05392; COX7B; 1.
DR SUPFAM; SSF81423; SSF81423; 1.
PE 3: Inferred from homology;
KW Membrane; Mitochondrion; Mitochondrion inner membrane; Reference proteome;
KW Transit peptide; Transmembrane; Transmembrane helix.
FT TRANSIT 1..24
FT /note="Mitochondrion"
FT /evidence="ECO:0000250|UniProtKB:P13183"
FT CHAIN 25..80
FT /note="Cytochrome c oxidase subunit 7B, mitochondrial"
FT /id="PRO_0000041876"
FT TOPO_DOM 25..32
FT /note="Mitochondrial matrix"
FT /evidence="ECO:0000250|UniProtKB:P13183"
FT TRANSMEM 33..59
FT /note="Helical"
FT /evidence="ECO:0000250|UniProtKB:P13183"
FT TOPO_DOM 60..80
FT /note="Mitochondrial intermembrane"
FT /evidence="ECO:0000250|UniProtKB:P13183"
SQ SEQUENCE 80 AA; 9188 MW; 1EFD68F8B0161759 CRC64;
MFPLVKNALN RLQVRSIQQT MARQSHQKRT PDFHDKYGNA VLASGATFCI VTWTYVATQV
GIEWNLSPVG RVTPKEWRNQ
