ID K9UY89_9CYAN Unreviewed; 110 AA.
AC K9UY89;
DT 06-MAR-2013, integrated into UniProtKB/TrEMBL.
DT 06-MAR-2013, sequence version 1.
DT 27-MAR-2024, entry version 50.
DE RecName: Full=Cytochrome c6 {ECO:0000256|HAMAP-Rule:MF_00594};
DE AltName: Full=Cytochrome c-553 {ECO:0000256|HAMAP-Rule:MF_00594};
DE AltName: Full=Cytochrome c553 {ECO:0000256|HAMAP-Rule:MF_00594};
DE AltName: Full=Soluble cytochrome f {ECO:0000256|HAMAP-Rule:MF_00594};
DE Flags: Precursor;
GN Name=petJ {ECO:0000256|HAMAP-Rule:MF_00594};
GN ORFNames=Cal6303_1039 {ECO:0000313|EMBL:AFZ00102.1};
OS Calothrix sp. PCC 6303.
OC Bacteria; Cyanobacteriota; Cyanophyceae; Nostocales; Calotrichaceae;
OC Calothrix.
OX NCBI_TaxID=1170562 {ECO:0000313|EMBL:AFZ00102.1, ECO:0000313|Proteomes:UP000010477};
RN [1] {ECO:0000313|EMBL:AFZ00102.1, ECO:0000313|Proteomes:UP000010477}
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 6303 {ECO:0000313|EMBL:AFZ00102.1,
RC ECO:0000313|Proteomes:UP000010477};
RA Gugger M., Coursin T., Rippka R., Tandeau De Marsac N., Huntemann M.,
RA Wei C.-L., Han J., Detter J.C., Han C., Tapia R., Chen A., Kyrpides N.,
RA Mavromatis K., Markowitz V., Szeto E., Ivanova N., Pagani I., Pati A.,
RA Goodwin L., Nordberg H.P., Cantor M.N., Hua S.X., Woyke T., Kerfeld C.A.;
RT "Finished chromosome of genome of Calothrix sp. PCC 6303.";
RL Submitted (MAY-2012) to the EMBL/GenBank/DDBJ databases.
CC -!- FUNCTION: Functions as an electron carrier between membrane-bound
CC cytochrome b6-f and photosystem I in oxygenic photosynthesis.
CC {ECO:0000256|HAMAP-Rule:MF_00594}.
CC -!- SUBUNIT: Monomer. {ECO:0000256|HAMAP-Rule:MF_00594}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid lumen
CC {ECO:0000256|ARBA:ARBA00004518, ECO:0000256|HAMAP-Rule:MF_00594}.
CC -!- PTM: Binds 1 heme c group per subunit. {ECO:0000256|HAMAP-
CC Rule:MF_00594}.
CC -!- SIMILARITY: Belongs to the cytochrome c family. PetJ subfamily.
CC {ECO:0000256|ARBA:ARBA00009650, ECO:0000256|HAMAP-Rule:MF_00594}.
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DR EMBL; CP003610; AFZ00102.1; -; Genomic_DNA.
DR RefSeq; WP_015196755.1; NC_019751.1.
DR AlphaFoldDB; K9UY89; -.
DR STRING; 1170562.Cal6303_1039; -.
DR KEGG; calt:Cal6303_1039; -.
DR PATRIC; fig|1170562.3.peg.1131; -.
DR eggNOG; COG2010; Bacteria.
DR HOGENOM; CLU_101159_1_0_3; -.
DR OrthoDB; 5570429at2; -.
DR Proteomes; UP000010477; Chromosome.
DR GO; GO:0031979; C:plasma membrane-derived thylakoid lumen; IEA:UniProtKB-SubCell.
DR GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR GO; GO:0020037; F:heme binding; IEA:InterPro.
DR GO; GO:0005506; F:iron ion binding; IEA:InterPro.
DR GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR Gene3D; 1.10.760.10; Cytochrome c-like domain; 1.
DR HAMAP; MF_00594; Cytc_PetJ; 1.
DR InterPro; IPR009056; Cyt_c-like_dom.
DR InterPro; IPR036909; Cyt_c-like_dom_sf.
DR InterPro; IPR023655; Cyt_C6.
DR InterPro; IPR008168; Cyt_C_IC.
DR PANTHER; PTHR34688:SF4; CYTOCHROME C-553; 1.
DR PANTHER; PTHR34688; CYTOCHROME C6, CHLOROPLASTIC; 1.
DR Pfam; PF13442; Cytochrome_CBB3; 1.
DR PRINTS; PR00605; CYTCHROMECIC.
DR SUPFAM; SSF46626; Cytochrome c; 1.
DR PROSITE; PS51007; CYTC; 1.
PE 3: Inferred from homology;
KW Electron transport {ECO:0000256|HAMAP-Rule:MF_00594};
KW Heme {ECO:0000256|ARBA:ARBA00022617, ECO:0000256|HAMAP-Rule:MF_00594};
KW Iron {ECO:0000256|ARBA:ARBA00023004, ECO:0000256|HAMAP-Rule:MF_00594};
KW Metal-binding {ECO:0000256|ARBA:ARBA00022723, ECO:0000256|HAMAP-
KW Rule:MF_00594}; Photosynthesis {ECO:0000256|HAMAP-Rule:MF_00594};
KW Reference proteome {ECO:0000313|Proteomes:UP000010477};
KW Signal {ECO:0000256|HAMAP-Rule:MF_00594};
KW Thylakoid {ECO:0000256|ARBA:ARBA00023078, ECO:0000256|HAMAP-Rule:MF_00594};
KW Transport {ECO:0000256|HAMAP-Rule:MF_00594}.
FT SIGNAL 1..25
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00594"
FT CHAIN 26..110
FT /note="Cytochrome c6"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00594"
FT /id="PRO_5009016547"
FT DOMAIN 25..105
FT /note="Cytochrome c"
FT /evidence="ECO:0000259|PROSITE:PS51007"
FT BINDING 38
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00594"
FT BINDING 41
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00594"
FT BINDING 42
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00594"
FT BINDING 82
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000256|HAMAP-Rule:MF_00594"
SQ SEQUENCE 110 AA; 11757 MW; AF61C55020973724 CRC64;
MKRIVSVLLL GITIFTFAFN RPALADATLG AKVFSANCAQ CHAGGKNLVN AAKTLKKEDL
EKYSMYSAEA IITQVTKGKG AMPAFGGRLN ATQIEDVASY VLEQADKGWS
//
