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CYC6_TRIV2
ID   CYC6_TRIV2              Reviewed;         111 AA.
AC   Q3MDW2; P00113; P28597; P80062;
DT   21-MAR-2006, integrated into UniProtKB/Swiss-Prot.
DT   25-OCT-2005, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Cytochrome c6;
DE   AltName: Full=Cytochrome c-553;
DE   AltName: Full=Cytochrome c553;
DE   AltName: Full=Soluble cytochrome f;
DE   Flags: Precursor;
GN   Name=petJ; OrderedLocusNames=Ava_1200;
OS   Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Trichormus.
OX   NCBI_TaxID=240292;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=1320427; DOI=10.1007/bf00023397;
RA   Bovy A.G., de Vrieze G., Borrias W.E., Weisbeek P.J.;
RT   "Isolation and sequence analysis of a gene encoding a basic cytochrome c-
RT   553 from the cyanobacterium Anabaena SP. PCC 7937.";
RL   Plant Mol. Biol. 19:491-492(1992).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29413 / PCC 7937;
RX   PubMed=25197444; DOI=10.4056/sigs.3899418;
RA   Thiel T., Pratte B.S., Zhong J., Goodwin L., Copeland A., Lucas S., Han C.,
RA   Pitluck S., Land M.L., Kyrpides N.C., Woyke T.;
RT   "Complete genome sequence of Anabaena variabilis ATCC 29413.";
RL   Stand. Genomic Sci. 9:562-573(2014).
CC   -!- FUNCTION: Functions as an electron carrier between membrane-bound
CC       cytochrome b6-f and photosystem I in oxygenic photosynthesis.
CC       {ECO:0000250}.
CC   -!- SUBUNIT: Monomer. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid lumen {ECO:0000305}.
CC   -!- PTM: Binds 1 heme c group covalently per subunit. {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the cytochrome c family. PetJ subfamily.
CC       {ECO:0000305}.
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DR   EMBL; X63194; CAA44876.1; -; Genomic_DNA.
DR   EMBL; CP000117; ABA20824.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q3MDW2; -.
DR   SMR; Q3MDW2; -.
DR   STRING; 240292.Ava_1200; -.
DR   EnsemblBacteria; ABA20824; ABA20824; Ava_1200.
DR   KEGG; ava:Ava_1200; -.
DR   eggNOG; COG2010; Bacteria.
DR   HOGENOM; CLU_101159_1_0_3; -.
DR   OMA; GQNVIMP; -.
DR   Proteomes; UP000002533; 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; -; 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; PTHR34688; 1.
DR   Pfam; PF13442; Cytochrome_CBB3; 1.
DR   PRINTS; PR00605; CYTCHROMECIC.
DR   SUPFAM; SSF46626; SSF46626; 1.
DR   PROSITE; PS51007; CYTC; 1.
PE   3: Inferred from homology;
KW   Electron transport; Heme; Iron; Metal-binding; Photosynthesis; Signal;
KW   Thylakoid; Transport.
FT   SIGNAL          1..26
FT                   /evidence="ECO:0000250"
FT   CHAIN           27..111
FT                   /note="Cytochrome c6"
FT                   /id="PRO_0000023856"
FT   BINDING         39
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000250"
FT   BINDING         42
FT                   /ligand="heme c"
FT                   /ligand_id="ChEBI:CHEBI:61717"
FT                   /note="covalent"
FT                   /evidence="ECO:0000250"
FT   BINDING         43
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:0000250"
FT   BINDING         83
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:0000250"
SQ   SEQUENCE   111 AA;  11840 MW;  551FDF473ED2CF9F CRC64;
     MKKIFSLVLL GIALFTFAFS SPALAADVAN GAKIFSANCA SCHAGGKNLV QAQKTLKKED
     LEKFGMYSAE AIIAQVTNGK NAMPAFKGRL KPDQIEDVAA YVLGQADKSW K
 
 
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