ID   PSAD_MICDP              Reviewed;         138 AA.
AC   P23808;
DT   01-NOV-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1991, sequence version 1.
DT   25-MAY-2022, entry version 61.
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   Microchaete diplosiphon (Fremyella diplosiphon).
OC   Bacteria; Cyanobacteria; Nostocales; Rivulariaceae; Microchaete.
OX   NCBI_TaxID=1197;
RN   [1]
RP   PROTEIN SEQUENCE.
RC   STRAIN=UTEX 590 / SAG B 1429-1b;
RX   PubMed=1930733; DOI=10.1515/bchm3.1991.372.2.519;
RA   Mann K., Schlenkrich T., Bauer M., Huber R.;
RT   "The amino-acid sequence of three proteins of photosystem I of the
RT   cyanobacterium Fremyella diplosiphon (Calothrix sp PCC 7601).";
RL   Biol. Chem. Hoppe-Seyler 372:519-524(1991).
CC   -!- FUNCTION: PsaD can form complexes with ferredoxin and ferredoxin-
CC       oxidoreductase in photosystem I (PS I) reaction center.
CC   -!- SIMILARITY: Belongs to the PsaD family. {ECO:0000305}.
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DR   AlphaFoldDB; P23808; -.
DR   SMR; P23808; -.
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   Direct protein sequencing; Photosynthesis; Photosystem I.
FT   CHAIN           1..138
FT                   /note="Photosystem I reaction center subunit II"
FT                   /id="PRO_0000206050"
SQ   SEQUENCE   138 AA;  15107 MW;  E63D29C130BA04C3 CRC64;
     AETLSGQTPL FAGSTGGLLK KAEVEEKYAI TWTSPKAQVF ELPTGGAATM QQGQNLLYLA
     RKEYGIALGG QLRKFKITDY KIYRILPGGE TTLIHPADGV FPEKVNAGRE KVRFVPRRIG
     ENPNPSAIKF SGKYTYDA