ID Q8KJP2_RHILI Unreviewed; 287 AA.
AC Q8KJP2;
DT 01-OCT-2002, integrated into UniProtKB/TrEMBL.
DT 01-OCT-2002, sequence version 1.
DT 27-MAR-2024, entry version 97.
DE RecName: Full=Cbb3-type cytochrome c oxidase subunit {ECO:0000256|PIRNR:PIRNR000006};
GN Name=fixP {ECO:0000313|EMBL:CAD31419.1};
OS Rhizobium loti (Mesorhizobium loti).
OC Bacteria; Pseudomonadota; Alphaproteobacteria; Hyphomicrobiales;
OC Phyllobacteriaceae; Mesorhizobium.
OX NCBI_TaxID=381 {ECO:0000313|EMBL:CAD31419.1};
RN [1] {ECO:0000313|EMBL:CAD31419.1}
RP NUCLEOTIDE SEQUENCE.
RC STRAIN=R7A {ECO:0000313|EMBL:CAD31419.1};
RX PubMed=12003951; DOI=10.1128/JB.184.11.3086-3095.2002;
RA Sullivan J.T., Trzebiatowski J.R., Cruickshank R.W., Gouzy J., Brown S.D.,
RA Elliot R.M., Fleetwood D.J., McCallum N.G., Rossbach U., Stuart G.S.,
RA Weaver J.E., Webby R.J., de Bruijn F.J., Ronson C.W.;
RT "Comparative sequence analysis of the symbiosis island of Mesorhizobium
RT loti strain R7A.";
RL J. Bacteriol. 184:3086-3095(2002).
CC -!- FUNCTION: C-type cytochrome. Part of the cbb3-type cytochrome c oxidase
CC complex. FixP subunit is required for transferring electrons from donor
CC cytochrome c via its heme groups to FixO subunit. From there, electrons
CC are shuttled to the catalytic binuclear center of FixN subunit where
CC oxygen reduction takes place. The complex also functions as a proton
CC pump. {ECO:0000256|ARBA:ARBA00025525}.
CC -!- COFACTOR:
CC Name=heme c; Xref=ChEBI:CHEBI:61717;
CC Evidence={ECO:0000256|PIRNR:PIRNR000006,
CC ECO:0000256|PIRSR:PIRSR000006-2};
CC Note=Binds 2 heme C groups per subunit. {ECO:0000256|PIRNR:PIRNR000006,
CC ECO:0000256|PIRSR:PIRSR000006-2};
CC -!- PATHWAY: Energy metabolism; oxidative phosphorylation.
CC {ECO:0000256|ARBA:ARBA00004673, ECO:0000256|PIRNR:PIRNR000006}.
CC -!- SUBUNIT: Component of the cbb3-type cytochrome c oxidase at least
CC composed of FixN, FixO, FixQ and FixP. {ECO:0000256|ARBA:ARBA00011203}.
CC -!- SUBCELLULAR LOCATION: Cell inner membrane
CC {ECO:0000256|ARBA:ARBA00004377}; Single-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004377}. Membrane
CC {ECO:0000256|ARBA:ARBA00004167}; Single-pass membrane protein
CC {ECO:0000256|ARBA:ARBA00004167}.
CC -!- SIMILARITY: Belongs to the CcoP / FixP family.
CC {ECO:0000256|ARBA:ARBA00006113, ECO:0000256|PIRNR:PIRNR000006}.
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DR EMBL; AL672112; CAD31419.1; -; Genomic_DNA.
DR AlphaFoldDB; Q8KJP2; -.
DR GeneID; 66686050; -.
DR UniPathway; UPA00705; -.
DR GO; GO:0005886; C:plasma membrane; IEA:UniProtKB-SubCell.
DR GO; GO:0070469; C:respirasome; IEA:UniProtKB-KW.
DR GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR GO; GO:0006119; P:oxidative phosphorylation; IEA:UniProtKB-UniPathway.
DR GO; GO:1902600; P:proton transmembrane transport; IEA:UniProtKB-KW.
DR Gene3D; 6.10.280.130; -; 1.
DR Gene3D; 1.10.760.10; Cytochrome c-like domain; 2.
DR InterPro; IPR032858; CcoP_N.
DR InterPro; IPR038414; CcoP_N_sf.
DR InterPro; IPR009056; Cyt_c-like_dom.
DR InterPro; IPR036909; Cyt_c-like_dom_sf.
DR InterPro; IPR008168; Cyt_C_IC.
DR InterPro; IPR004678; Cyt_c_oxidase_cbb3_su3.
DR NCBIfam; TIGR00782; ccoP; 1.
DR PANTHER; PTHR33751; CBB3-TYPE CYTOCHROME C OXIDASE SUBUNIT FIXP; 1.
DR PANTHER; PTHR33751:SF1; CBB3-TYPE CYTOCHROME C OXIDASE SUBUNIT FIXP; 1.
DR Pfam; PF13442; Cytochrome_CBB3; 2.
DR Pfam; PF14715; FixP_N; 1.
DR PIRSF; PIRSF000006; Cbb3-Cox_fixP; 1.
DR PRINTS; PR00605; CYTCHROMECIC.
DR SUPFAM; SSF46626; Cytochrome c; 2.
DR PROSITE; PS51007; CYTC; 2.
PE 3: Inferred from homology;
KW Cell inner membrane {ECO:0000256|ARBA:ARBA00022519,
KW ECO:0000256|PIRNR:PIRNR000006};
KW Cell membrane {ECO:0000256|ARBA:ARBA00022475,
KW ECO:0000256|PIRNR:PIRNR000006};
KW Electron transport {ECO:0000256|ARBA:ARBA00022982,
KW ECO:0000256|PIRNR:PIRNR000006};
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|PIRNR:PIRNR000006};
KW Hydrogen ion transport {ECO:0000256|ARBA:ARBA00022781,
KW ECO:0000256|PIRNR:PIRNR000006};
KW Ion transport {ECO:0000256|ARBA:ARBA00023065,
KW ECO:0000256|PIRNR:PIRNR000006};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|PIRNR:PIRNR000006};
KW Membrane {ECO:0000256|ARBA:ARBA00023136, ECO:0000256|PIRNR:PIRNR000006};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723,
KW ECO:0000256|PIRNR:PIRNR000006};
KW Oxidoreductase {ECO:0000256|ARBA:ARBA00023002,
KW ECO:0000256|PIRNR:PIRNR000006}; Repeat {ECO:0000256|ARBA:ARBA00022737};
KW Respiratory chain {ECO:0000256|ARBA:ARBA00022660,
KW ECO:0000256|PIRNR:PIRNR000006};
KW Transmembrane {ECO:0000256|ARBA:ARBA00022692, ECO:0000256|SAM:Phobius};
KW Transmembrane helix {ECO:0000256|ARBA:ARBA00022989,
KW ECO:0000256|SAM:Phobius};
KW Transport {ECO:0000256|ARBA:ARBA00022448, ECO:0000256|PIRNR:PIRNR000006}.
FT TRANSMEM 32..54
FT /note="Helical"
FT /evidence="ECO:0000256|SAM:Phobius"
FT DOMAIN 108..196
FT /note="Cytochrome c"
FT /evidence="ECO:0000259|PROSITE:PS51007"
FT DOMAIN 203..284
FT /note="Cytochrome c"
FT /evidence="ECO:0000259|PROSITE:PS51007"
FT BINDING 121
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="1"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-2"
FT BINDING 124
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="1"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-2"
FT BINDING 125
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="1"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-1"
FT BINDING 173
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="2"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-1"
FT BINDING 216
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="2"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-2"
FT BINDING 219
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="2"
FT /note="covalent"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-2"
FT BINDING 220
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="2"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-1"
FT BINDING 261
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_label="1"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|PIRSR:PIRSR000006-1"
SQ SEQUENCE 287 AA; 30622 MW; 342CAECAE76E9DA7 CRC64;
MSSEYIDEVS GISTTGHEWD GIRELNTPLP RWWVITFYIT VAWAVAYTIA YPAWPMLSSA
TKGVLGYSSR NAVKIELAAA EAAKGKYVAA IQQKTVSEIA ADDALREFAI AAGGATFKVN
CVQCHGSGAQ GSKGFPNLND DDWLWGGTTE QIQQTIAHGI RFASDPDTRQ SEMPPFGDII
TPEQIAQVGA YVASLSGKVQ DASLIEPGAK VFVENCVACH GDNAKGNKEL GAPNLTDAIW
LYAPGETAIA VQVRAPKHGV MPAWIGRLGE TKVKELAVYV HSLGGGE
//
