CYC6_SYNE7
ID CYC6_SYNE7 Reviewed; 111 AA.
AC P25935; Q31MQ9;
DT 01-MAY-1992, integrated into UniProtKB/Swiss-Prot.
DT 01-MAY-1992, sequence version 1.
DT 03-AUG-2022, entry version 128.
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; Synonyms=cytA; OrderedLocusNames=Synpcc7942_1630;
OS Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans
OS R2).
OC Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX NCBI_TaxID=1140;
RN [1]
RP NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX PubMed=1967057; DOI=10.2307/3869327;
RA Laudenbach D.E., Herbert S.K., McDowell C., Fork D.C., Grossman A.R.,
RA Straus N.A.;
RT "Cytochrome c-553 is not required for photosynthetic activity in the
RT cyanobacterium Synechococcus.";
RL Plant Cell 2:913-924(1990).
RN [2]
RP NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC STRAIN=PCC 7942 / FACHB-805;
RG US DOE Joint Genome Institute;
RA Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M.,
RA Kyrpides N., Lykidis A., Richardson P.;
RT "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
RL Submitted (AUG-2005) 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:0000250}.
CC -!- SUBUNIT: Monomer. {ECO:0000250}.
CC -!- SUBCELLULAR LOCATION: Cellular thylakoid lumen {ECO:0000305}.
CC -!- PTM: Binds 1 heme c group covalently per subunit.
CC -!- SIMILARITY: Belongs to the cytochrome c family. PetJ subfamily.
CC {ECO:0000305}.
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DR EMBL; S44426; AAB23485.1; -; Genomic_DNA.
DR EMBL; CP000100; ABB57660.1; -; Genomic_DNA.
DR PIR; JQ1083; JQ1083.
DR RefSeq; WP_011242402.1; NC_007604.1.
DR AlphaFoldDB; P25935; -.
DR SMR; P25935; -.
DR STRING; 1140.Synpcc7942_1630; -.
DR PRIDE; P25935; -.
DR EnsemblBacteria; ABB57660; ABB57660; Synpcc7942_1630.
DR KEGG; syf:Synpcc7942_1630; -.
DR eggNOG; COG2010; Bacteria.
DR HOGENOM; CLU_101159_1_0_3; -.
DR OMA; GQNVIMP; -.
DR OrthoDB; 1939800at2; -.
DR BioCyc; SYNEL:SYNPCC7942_1630-MON; -.
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..24
FT /evidence="ECO:0000250"
FT CHAIN 25..111
FT /note="Cytochrome c6"
FT /id="PRO_0000023860"
FT BINDING 38
FT /ligand="heme c"
FT /ligand_id="ChEBI:CHEBI:61717"
FT /note="covalent"
FT /evidence="ECO:0000250"
FT BINDING 41
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 /ligand_part="Fe"
FT /ligand_part_id="ChEBI:CHEBI:18248"
FT /note="axial binding residue"
FT /evidence="ECO:0000250"
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:0000250"
SQ SEQUENCE 111 AA; 11388 MW; 0678CDD974490162 CRC64;
MKRILGTAIA ALVVLLAFIA PAQAADLAHG GQVFSANCAA CHLGGRNVVN PAKTLQKADL
DQYGMASIEA ITTQVTNGKG AMPAFGSKLS ADDIADVASY VLDQSEKGWQ G
