ID   PSAD_CUCSA              Reviewed;         207 AA.
AC   P32869;
DT   01-OCT-1993, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1993, sequence version 1.
DT   25-MAY-2022, entry version 81.
DE   RecName: Full=Photosystem I reaction center subunit II, chloroplastic;
DE   AltName: Full=PS I subunit 5;
DE   AltName: Full=Photosystem I 20 kDa subunit;
DE            Short=PSI-D;
DE   Flags: Precursor;
GN   Name=psaD;
OS   Cucumis sativus (Cucumber).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   rosids; fabids; Cucurbitales; Cucurbitaceae; Benincaseae; Cucumis.
OX   NCBI_TaxID=3659;
RN   [1]
RP   NUCLEOTIDE SEQUENCE, AND PROTEIN SEQUENCE OF 55-77.
RA   Iwasaki Y., Sasaki T., Takabe T.;
RT   "Sequencing and expression of the gene that encodes a 20-kDa polypeptide of
RT   the PS I complex from cucumber cotyledon.";
RL   Plant Cell Physiol. 31:871-879(1990).
CC   -!- FUNCTION: PsaD can form complexes with ferredoxin and ferredoxin-
CC       oxidoreductase in photosystem I (PS I) reaction center. PSAD may encode
CC       the ferredoxin-docking protein.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Stromal side
CC       {ECO:0000250}.
CC   -!- DEVELOPMENTAL STAGE: Present in etiolated cotyledons; level increased
CC       during greening.
CC   -!- SIMILARITY: Belongs to the PsaD family. {ECO:0000305}.
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DR   PIR; A60695; A60695.
DR   RefSeq; XP_004134141.1; XM_004134093.2.
DR   AlphaFoldDB; P32869; -.
DR   SMR; P32869; -.
DR   STRING; 3659.XP_004134141.1; -.
DR   PRIDE; P32869; -.
DR   EnsemblPlants; KGN56995; KGN56995; Csa_3G147780.
DR   GeneID; 101207214; -.
DR   Gramene; KGN56995; KGN56995; Csa_3G147780.
DR   KEGG; csv:101207214; -.
DR   eggNOG; ENOG502QQIC; Eukaryota.
DR   OMA; HNPRRIG; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   InterPro; IPR003685; PsaD.
DR   InterPro; IPR036579; PsaD_sf.
DR   PANTHER; PTHR31982; PTHR31982; 1.
DR   Pfam; PF02531; PsaD; 1.
DR   SUPFAM; SSF64234; SSF64234; 1.
PE   1: Evidence at protein level;
KW   Chloroplast; Direct protein sequencing; Membrane; Photosynthesis;
KW   Photosystem I; Plastid; Thylakoid; Transit peptide.
FT   TRANSIT         1..54
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000269|Ref.1"
FT   CHAIN           55..207
FT                   /note="Photosystem I reaction center subunit II,
FT                   chloroplastic"
FT                   /id="PRO_0000029373"
SQ   SEQUENCE   207 AA;  22721 MW;  8AEA553CA1D5D733 CRC64;
     MAMATQATLF TPSLSTPKST GISIPWKQSS TLSFLTSKPH LKAASSSRSF KVSAEAETSV
     EAPAGFSPPE LDPSTPSPIF AGSTGGLLRK AQVEEFYVIT WESPKEQIFE MPTGGAAIMR
     EGPNLLKLAR KEQCLALGTR LRSKYKIKYQ FYRVFPNGEV QYLHPKDGVY PEKVNPGREG
     VGQNFRSIGK NVSPIEVKFT GKQVYDL