ID   PLAS_GLOC7              Reviewed;         127 AA.
AC   B7KAE8;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   10-FEB-2009, sequence version 1.
DT   03-AUG-2022, entry version 60.
DE   RecName: Full=Plastocyanin {ECO:0000255|HAMAP-Rule:MF_00566};
DE   Flags: Precursor;
GN   Name=petE {ECO:0000255|HAMAP-Rule:MF_00566};
GN   OrderedLocusNames=PCC7424_4559;
OS   Gloeothece citriformis (strain PCC 7424) (Cyanothece sp. (strain PCC
OS   7424)).
OC   Bacteria; Cyanobacteria; Oscillatoriophycideae; Chroococcales;
OC   Aphanothecaceae; Gloeothece; Gloeothece citriformis.
OX   NCBI_TaxID=65393;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7424;
RX   PubMed=21972240; DOI=10.1128/mbio.00214-11;
RA   Bandyopadhyay A., Elvitigala T., Welsh E., Stockel J., Liberton M., Min H.,
RA   Sherman L.A., Pakrasi H.B.;
RT   "Novel metabolic attributes of the genus Cyanothece, comprising a group of
RT   unicellular nitrogen-fixing Cyanobacteria.";
RL   MBio 2:E214-E214(2011).
CC   -!- FUNCTION: Participates in electron transfer between P700 and the
CC       cytochrome b6-f complex in photosystem I. {ECO:0000255|HAMAP-
CC       Rule:MF_00566}.
CC   -!- COFACTOR:
CC       Name=Cu(2+); Xref=ChEBI:CHEBI:29036;
CC         Evidence={ECO:0000255|HAMAP-Rule:MF_00566};
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00566}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00566}; Lumenal side {ECO:0000255|HAMAP-Rule:MF_00566}.
CC       Note=Loosely bound to the thylakoid inner membrane surface.
CC   -!- SIMILARITY: Belongs to the plastocyanin family. {ECO:0000255|HAMAP-
CC       Rule:MF_00566}.
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DR   EMBL; CP001291; ACK72922.1; -; Genomic_DNA.
DR   RefSeq; WP_015956505.1; NC_011729.1.
DR   AlphaFoldDB; B7KAE8; -.
DR   SMR; B7KAE8; -.
DR   STRING; 65393.PCC7424_4559; -.
DR   EnsemblBacteria; ACK72922; ACK72922; PCC7424_4559.
DR   KEGG; cyc:PCC7424_4559; -.
DR   eggNOG; COG3794; Bacteria.
DR   HOGENOM; CLU_084115_0_1_3; -.
DR   OMA; YDYYCEP; -.
DR   OrthoDB; 1654242at2; -.
DR   Proteomes; UP000002384; Chromosome.
DR   GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0005507; F:copper ion binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0009055; F:electron transfer activity; IEA:UniProtKB-UniRule.
DR   CDD; cd04219; Plastocyanin; 1.
DR   Gene3D; 2.60.40.420; -; 1.
DR   HAMAP; MF_00566; Cytb6_f_plastocyanin; 1.
DR   InterPro; IPR000923; BlueCu_1.
DR   InterPro; IPR028871; BlueCu_1_BS.
DR   InterPro; IPR001235; Copper_blue_Plastocyanin.
DR   InterPro; IPR008972; Cupredoxin.
DR   InterPro; IPR002387; Plastocyanin.
DR   InterPro; IPR023511; Plastocyanin_cyanobac.
DR   Pfam; PF00127; Copper-bind; 1.
DR   PRINTS; PR00156; COPPERBLUE.
DR   PRINTS; PR00157; PLASTOCYANIN.
DR   SUPFAM; SSF49503; SSF49503; 1.
DR   TIGRFAMs; TIGR02656; cyanin_plasto; 1.
DR   PROSITE; PS00196; COPPER_BLUE; 1.
PE   3: Inferred from homology;
KW   Copper; Electron transport; Membrane; Metal-binding; Reference proteome;
KW   Signal; Thylakoid; Transport.
FT   SIGNAL          1..28
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00566"
FT   CHAIN           29..127
FT                   /note="Plastocyanin"
FT                   /id="PRO_5000418167"
FT   DOMAIN          29..127
FT                   /note="Plastocyanin-like"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00566"
FT   BINDING         67
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00566"
FT   BINDING         112
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00566"
FT   BINDING         115
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00566"
FT   BINDING         120
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00566"
SQ   SEQUENCE   127 AA;  13681 MW;  5C74C17618CD44C3 CRC64;
     MLKKLGVLLS AIVLVIASFF VTVTPALAET YTVKMGSDQG LLKFDPPQLT IKAGDTVKWV
     NNKLAPHNAV FDNSKVPDSV SATKISHKAL VFSPGESFTT TFDEPGTYTY YCEPHRGAGM
     VGTITVE