ID Q9B2U8 PRELIMINARY; PRT; 227 AA. AC Q9B2U8; DT 01-JUN-2001 (TrEMBLrel. 17, Created) DT 01-JUN-2001 (TrEMBLrel. 17, Last sequence update) DT 01-MAR-2004 (TrEMBLrel. 26, Last annotation update) DE Cytochrome c oxidase subunit II. OS Homo sapiens (Human). OG Mitochondrion. OC Eukaryota; Metazoa; Chordata; Craniata; Vertebrata; Euteleostomi; OC Mammalia; Eutheria; Primates; Catarrhini; Hominidae; Homo. OX NCBI_TaxID=9606; RN [1] RP SEQUENCE FROM N.A. RX MEDLINE=21012010; PubMed=11130070; RA Ingman M., Kaessmann H., Paabo S., Gyllensten U.; RT "Mitochondrial genome variation and the origin of modern humans."; RL Nature 408:708-713(2000). RN [2] RP SEQUENCE FROM N.A. RA Ingman M., Kaessmann H., Paabo S., Gyllensten U.; RL Submitted (FEB-2001) to the EMBL/GenBank/DDBJ databases. CC -!- FUNCTION: Cytochrome c oxidase is the component of the respiratory CC chain that catalyzes the reduction of oxygen to water. Subunits 1- CC 3 form the functional core of the enzyme complex. Subunit 2 CC transfers the electrons from cytochrome c via its binuclear copper CC A center to the bimetallic center of the catalytic subunit 1 (By CC similarity). CC -!- CATALYTIC ACTIVITY: 4 ferrocytochrome c + O(2) = 4 ferricytochrome CC c + 2 H(2)O. CC -!- COFACTOR: Copper A (By similarity). CC -!- SUBCELLULAR LOCATION: Integral membrane protein. Mitochondrial CC inner membrane (By similarity). CC -!- SIMILARITY: Belongs to the cytochrome c oxidase subunit 2 family. 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; AF347008; AAK17795.1; -. DR HSSP; P18400; 1CYX. DR GO; GO:0019866; C:inner membrane; IEA. DR GO; GO:0016021; C:integral to membrane; IEA. DR GO; GO:0005746; C:mitochondrial electron transport chain; IEA. DR GO; GO:0005739; C:mitochondrion; IEA. DR GO; GO:0005507; F:copper ion binding; IEA. DR GO; GO:0004129; F:cytochrome-c oxidase activity; IEA. DR GO; GO:0016491; F:oxidoreductase activity; IEA. DR GO; GO:0006118; P:electron transport; IEA. DR GO; GO:0006810; P:transport; IEA. DR InterPro; IPR001505; Copper_CuA. DR InterPro; IPR008972; Cupredoxin. DR InterPro; IPR002429; Cyt_c_ox_2. DR Pfam; PF00116; COX2; 1. DR Pfam; PF02790; COX2_TM; 1. DR PRINTS; PR01166; CYCOXIDASEII. DR ProDom; PD000131; Copper_CuA; 1. DR PROSITE; PS00078; COX2; 1. KW Copper; Electron transport; Inner membrane; Membrane; Mitochondrion; KW Oxidoreductase; Respiratory chain; Transmembrane; Transport. SQ SEQUENCE 227 AA; 25551 MW; 799836363CB4FF7C CRC64; MAHAAQVGLQ DATSPIMEEL ITFHDHALMV IFLICFLVLY ALFLTLTTKL TNTNISDAQE METVWTILPA IILVLIALPS LRILYMTDEV NDPSLTIKSI GHQWYWTYEY TDYGGLIFNS YMLPPLFLEP GDLRLLDVDN RVVLPIEAPI RMMITSQDVL HSWAVPTLGL KTDAIPGRLN QTTFTATRPG VYYGQCSEIC GANHSFMPIV LELIPLKIFE MGPVFTL //