ID   PLAS_SCEFU              Reviewed;          98 AA.
AC   P00300;
DT   21-JUL-1986, integrated into UniProtKB/Swiss-Prot.
DT   21-JUL-1986, sequence version 1.
DT   03-AUG-2022, entry version 94.
DE   RecName: Full=Plastocyanin;
GN   Name=petE;
OS   Scenedesmus fuscus (Green alga) (Chlorella fusca).
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC   CS clade; Sphaeropleales; Scenedesmaceae; Scenedesmus.
OX   NCBI_TaxID=3073;
RN   [1]
RP   PROTEIN SEQUENCE, AND SUBCELLULAR LOCATION.
RC   STRAIN=Krauss strain Tokugawa/Tokyo 27;
RX   PubMed=4462750; DOI=10.1042/bj1430681;
RA   Kelly J., Ambler R.P.;
RT   "The amino acid sequence of plastocyanin from Chlorella fusca.";
RL   Biochem. J. 143:681-690(1974).
CC   -!- FUNCTION: Participates in electron transfer between P700 and the
CC       cytochrome b6-f complex in photosystem I.
CC   -!- COFACTOR:
CC       Name=Cu(2+); Xref=ChEBI:CHEBI:29036;
CC         Evidence={ECO:0000250|UniProtKB:P18068};
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000269|PubMed:4462750}; Peripheral membrane protein; Lumenal
CC       side. Note=Loosely bound to the inner thylakoid membrane surface in
CC       chloroplasts.
CC   -!- SIMILARITY: Belongs to the plastocyanin family. {ECO:0000305}.
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DR   PIR; A00310; CUKLCF.
DR   AlphaFoldDB; P00300; -.
DR   SMR; P00300; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0005507; F:copper ion binding; IEA:InterPro.
DR   GO; GO:0009055; F:electron transfer activity; IEA:InterPro.
DR   CDD; cd04219; Plastocyanin; 1.
DR   Gene3D; 2.60.40.420; -; 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   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   1: Evidence at protein level;
KW   Chloroplast; Copper; Direct protein sequencing; Electron transport;
KW   Membrane; Metal-binding; Plastid; Thylakoid; Transport.
FT   CHAIN           1..98
FT                   /note="Plastocyanin"
FT                   /id="PRO_0000085561"
FT   DOMAIN          1..98
FT                   /note="Plastocyanin-like"
FT   BINDING         38
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000250|UniProtKB:P18068"
FT   BINDING         83
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000250|UniProtKB:P18068"
FT   BINDING         86
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000250|UniProtKB:P18068"
FT   BINDING         91
FT                   /ligand="Cu cation"
FT                   /ligand_id="ChEBI:CHEBI:23378"
FT                   /evidence="ECO:0000250|UniProtKB:P18068"
SQ   SEQUENCE   98 AA;  10299 MW;  6C1ED0F7A43A6160 CRC64;
     DVTVKLGADS GALVFEPSSV TIKAGETVTW VNNAGFPHNI VFDEDEVPSG ANAEALSHED
     YLNAPGESYS AKFDTAGTYG YFCEPHQGAG MKGTITVQ