ID   PSAD_CYACA              Reviewed;         140 AA.
AC   Q9TLR2;
DT   01-JUN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   25-MAY-2022, entry version 59.
DE   RecName: Full=Photosystem I reaction center subunit II;
DE   AltName: Full=Photosystem I 16 kDa polypeptide;
DE            Short=PSI-D;
GN   Name=psaD;
OS   Cyanidium caldarium (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae; Cyanidium.
OX   NCBI_TaxID=2771;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=RK-1;
RX   PubMed=11040290; DOI=10.1007/s002390010101;
RA   Gloeckner G., Rosenthal A., Valentin K.-U.;
RT   "The structure and gene repertoire of an ancient red algal plastid
RT   genome.";
RL   J. Mol. Evol. 51:382-390(2000).
CC   -!- FUNCTION: PsaD can form complexes with ferredoxin and ferredoxin-
CC       oxidoreductase in photosystem I (PS I) reaction center.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Stromal side
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the PsaD family. {ECO:0000305}.
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DR   EMBL; AF022186; AAF12887.1; -; Genomic_DNA.
DR   RefSeq; NP_045207.1; NC_001840.1.
DR   AlphaFoldDB; Q9TLR2; -.
DR   SMR; Q9TLR2; -.
DR   GeneID; 800110; -.
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   3: Inferred from homology;
KW   Chloroplast; Membrane; Photosynthesis; Photosystem I; Plastid; Thylakoid.
FT   CHAIN           1..140
FT                   /note="Photosystem I reaction center subunit II"
FT                   /id="PRO_0000206042"
SQ   SEQUENCE   140 AA;  15913 MW;  9CED8F5026A9D7B5 CRC64;
     MQQSLNLKMP SPEFYGNTGG WLRSSDIEEK YAITWSSKNE DIFEIPTGGV AKMKAGDNLL
     YLAKKEQCLA LGNQLKIKFK ILNFKIYRIF PNGEAQFLHP KDGVFPEKVN EGRKPIGKID
     HNIGKNLNPA EVKFTHKTIF