ID CYC6_SYNP3 Reviewed; 112 AA.
AC P00115; K9RUR7;
DT 21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT 03-APR-2013, sequence version 2.
DT 27-MAR-2024, entry version 112.
DE RecName: Full=Cytochrome c6 {ECO:0000255|HAMAP-Rule:MF_00594};
DE AltName: Full=Cytochrome c-552;
DE AltName: Full=Cytochrome c-553 {ECO:0000255|HAMAP-Rule:MF_00594};
DE AltName: Full=Cytochrome c553 {ECO:0000255|HAMAP-Rule:MF_00594};
DE AltName: Full=Soluble cytochrome f {ECO:0000255|HAMAP-Rule:MF_00594};
DE Flags: Precursor;
GN Name=petJ {ECO:0000255|HAMAP-Rule:MF_00594};
GN OrderedLocusNames=Syn6312_1893;
OS Synechococcus sp. (strain ATCC 27167 / PCC 6312).
OC Bacteria; Cyanobacteriota; Cyanophyceae; Synechococcales; Synechococcaceae;
OC Synechococcus.
OX NCBI_TaxID=195253;
RN [1]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=ATCC 27167 / PCC 6312;
RX PubMed=23277585; DOI=10.1073/pnas.1217107110;
RA Shih P.M., Wu D., Latifi A., Axen S.D., Fewer D.P., Talla E., Calteau A.,
RA Cai F., Tandeau de Marsac N., Rippka R., Herdman M., Sivonen K.,
RA Coursin T., Laurent T., Goodwin L., Nolan M., Davenport K.W., Han C.S.,
RA Rubin E.M., Eisen J.A., Woyke T., Gugger M., Kerfeld C.A.;
RT "Improving the coverage of the cyanobacterial phylum using diversity-driven
RT genome sequencing.";
RL Proc. Natl. Acad. Sci. U.S.A. 110:1053-1058(2013).
RN [2]
RP PROTEIN SEQUENCE OF 26-112.
RX PubMed=228936; DOI=10.1111/j.1432-1033.1979.tb04243.x;
RA Aitken A.;
RT "Purification and primary structure of cytochrome c-552 from the
RT cyanobacterium, Synechococcus PCC 6312.";
RL Eur. J. Biochem. 101:297-308(1979).
CC -!- FUNCTION: Functions as an electron carrier between membrane-bound
CC cytochrome b6-f and photosystem I in oxygenic photosynthesis.
CC -!- SUBUNIT: Monomer. {ECO:0000255|HAMAP-Rule:MF_00594}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid lumen {ECO:0000255|HAMAP-
CC Rule:MF_00594}.
CC -!- PTM: Binds 1 heme c group covalently per subunit.
CC -!- SIMILARITY: Belongs to the cytochrome c family. PetJ subfamily.
CC {ECO:0000255|HAMAP-Rule:MF_00594}.
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DR EMBL; CP003558; AFY61034.1; -; Genomic_DNA.
DR RefSeq; WP_015124577.1; NC_019680.1.
DR AlphaFoldDB; P00115; -.
DR SMR; P00115; -.
DR STRING; 195253.Syn6312_1893; -.
DR KEGG; syne:Syn6312_1893; -.
DR PATRIC; fig|195253.3.peg.1933; -.
DR eggNOG; COG2010; Bacteria.
DR HOGENOM; CLU_101159_1_0_3; -.
DR OrthoDB; 5570429at2; -.
DR Proteomes; UP000010379; 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 1: Evidence at protein level;
KW Direct protein sequencing; Electron transport; Heme; Iron; Metal-binding;
KW Photosynthesis; Reference proteome; Signal; Thylakoid; Transport.
FT SIGNAL 1..25
FT /evidence="ECO:0000255|HAMAP-Rule:MF_00594,
FT ECO:0000269|PubMed:228936"
FT CHAIN 26..112
FT /note="Cytochrome c6"
FT /id="PRO_0000208689"
FT BINDING 39
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT BINDING 42
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
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 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 CONFLICT 108..109
FT /note="KN -> NK (in Ref. 2; AA sequence)"
FT /evidence="ECO:0000305"
SQ SEQUENCE 112 AA; 11801 MW; 66A69F725BEEECCE CRC64;
MKTLLTILAL TLVTLTTWLS TPAFAADIAD GAKVFSANCA ACHMGGGNVV MANKTLKKEA
LEQFGMNSAD AIMYQVQNGK NAMPAFGGRL SEAQIENVAA YVLDQSSKNW AG
//
