ID A0A2A9M6C7_9APIC Unreviewed; 165 AA.
AC A0A2A9M6C7;
DT 20-DEC-2017, integrated into UniProtKB/TrEMBL.
DT 20-DEC-2017, sequence version 1.
DT 24-JAN-2024, entry version 19.
DE RecName: Full=Cytochrome c oxidase subunit 1 {ECO:0000256|RuleBase:RU000369};
DE EC=7.1.1.9 {ECO:0000256|RuleBase:RU000369};
GN ORFNames=BESB_058090 {ECO:0000313|EMBL:PFH30942.1};
OS Besnoitia besnoiti.
OC Eukaryota; Sar; Alveolata; Apicomplexa; Conoidasida; Coccidia;
OC Eucoccidiorida; Eimeriorina; Sarcocystidae; Besnoitia.
OX NCBI_TaxID=94643 {ECO:0000313|EMBL:PFH30942.1, ECO:0000313|Proteomes:UP000224006};
RN [1] {ECO:0000313|EMBL:PFH30942.1, ECO:0000313|Proteomes:UP000224006}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=Bb-Ger1 {ECO:0000313|EMBL:PFH30942.1,
RC ECO:0000313|Proteomes:UP000224006};
RA Schares G., Venepally P., Lorenzi H.A.;
RT "Genome sequencing of Besnoitia besnoiti strain Bb-Ger1.";
RL Submitted (SEP-2017) 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. {ECO:0000256|RuleBase:RU000369}.
CC -!- CATALYTIC ACTIVITY:
CC Reaction=4 Fe(II)-[cytochrome c] + 8 H(+)(in) + O2 = 4 Fe(III)-
CC [cytochrome c] + 4 H(+)(out) + 2 H2O; Xref=Rhea:RHEA:11436,
CC Rhea:RHEA-COMP:10350, Rhea:RHEA-COMP:14399, ChEBI:CHEBI:15377,
CC ChEBI:CHEBI:15378, ChEBI:CHEBI:15379, ChEBI:CHEBI:29033,
CC ChEBI:CHEBI:29034; EC=7.1.1.9;
CC Evidence={ECO:0000256|RuleBase:RU000369};
CC -!- PATHWAY: Energy metabolism; oxidative phosphorylation.
CC {ECO:0000256|RuleBase:RU000369}.
CC -!- SUBCELLULAR LOCATION: Mitochondrion inner membrane
CC {ECO:0000256|RuleBase:RU000369}; Multi-pass membrane protein
CC {ECO:0000256|RuleBase:RU000369}.
CC -!- SIMILARITY: Belongs to the heme-copper respiratory oxidase family.
CC {ECO:0000256|RuleBase:RU000369}.
CC -!- CAUTION: The sequence shown here is derived from an EMBL/GenBank/DDBJ
CC whole genome shotgun (WGS) entry which is preliminary data.
CC {ECO:0000313|EMBL:PFH30942.1}.
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DR EMBL; NWUJ01000036; PFH30942.1; -; Genomic_DNA.
DR AlphaFoldDB; A0A2A9M6C7; -.
DR STRING; 94643.A0A2A9M6C7; -.
DR VEuPathDB; ToxoDB:BESB_058090; -.
DR OrthoDB; 5387269at2759; -.
DR UniPathway; UPA00705; -.
DR Proteomes; UP000224006; Unassembled WGS sequence.
DR GO; GO:0005743; C:mitochondrial inner membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR GO; GO:0004129; F:cytochrome-c oxidase activity; IEA:UniProtKB-EC.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0046872; F:metal ion binding; IEA:UniProtKB-KW.
DR GO; GO:0006119; P:oxidative phosphorylation; IEA:UniProtKB-UniPathway.
DR Gene3D; 1.20.210.10; Cytochrome c oxidase-like, subunit I domain; 1.
DR InterPro; IPR023616; Cyt_c_oxase-like_su1_dom.
DR InterPro; IPR036927; Cyt_c_oxase-like_su1_sf.
DR InterPro; IPR000883; Cyt_C_Oxase_1.
DR PANTHER; PTHR10422; CYTOCHROME C OXIDASE SUBUNIT 1; 1.
DR PANTHER; PTHR10422:SF18; CYTOCHROME C OXIDASE SUBUNIT 1; 1.
DR Pfam; PF00115; COX1; 1.
DR PRINTS; PR01165; CYCOXIDASEI.
DR SUPFAM; SSF81442; Cytochrome c oxidase subunit I-like; 1.
DR PROSITE; PS50855; COX1; 1.
PE 3: Inferred from homology;
KW Copper {ECO:0000256|RuleBase:RU000369};
KW Electron transport {ECO:0000256|RuleBase:RU000369};
KW Heme {ECO:0000256|RuleBase:RU000369}; Iron {ECO:0000256|RuleBase:RU000369};
KW Membrane {ECO:0000256|RuleBase:RU000369, ECO:0000256|SAM:Phobius};
KW Metal-binding {ECO:0000256|RuleBase:RU000369};
KW Mitochondrion {ECO:0000256|RuleBase:RU000369};
KW Mitochondrion inner membrane {ECO:0000256|RuleBase:RU000369};
KW Reference proteome {ECO:0000313|Proteomes:UP000224006};
KW Respiratory chain {ECO:0000256|RuleBase:RU000369};
KW Transmembrane {ECO:0000256|RuleBase:RU000369, ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|SAM:Phobius};
KW Transport {ECO:0000256|RuleBase:RU000369}.
FT TRANSMEM 21..42
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 117..138
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT TRANSMEM 143..162
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 1..138
FT /note="Cytochrome oxidase subunit I profile"
FT /evidence="ECO:0000259|PROSITE:PS50855"
SQ SEQUENCE 165 AA; 18066 MW; 85529717BD7B27D9 CRC64;
MSLFIRFELY SSGSRIICTE TIATYNVIIT IHGLAMIFMF LMPALYGGYG NFFVPIYIGG
SEVVFPRTNA ISYFLVPLGS VLLTQSICSE FGSGLGWTMY PPLSTSLMVL NPEATDWIIG
GLAVLGISSI LSSINFLVLA SSWVLMLVLR TIFYISGLSY LLPLC
//
