ID   PSAD_TRIV2              Reviewed;         139 AA.
AC   P31089; Q3M3W7;
DT   01-JUL-1993, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 3.
DT   25-MAY-2022, entry version 105.
DE   RecName: Full=Photosystem I reaction center subunit II;
DE   AltName: Full=Photosystem I 16 kDa polypeptide;
DE            Short=PSI-D;
GN   Name=psaD; OrderedLocusNames=Ava_4722;
OS   Trichormus variabilis (strain ATCC 29413 / PCC 7937) (Anabaena variabilis).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Trichormus.
OX   NCBI_TaxID=240292;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29413 / PCC 7937;
RX   PubMed=25197444; DOI=10.4056/sigs.3899418;
RA   Thiel T., Pratte B.S., Zhong J., Goodwin L., Copeland A., Lucas S., Han C.,
RA   Pitluck S., Land M.L., Kyrpides N.C., Woyke T.;
RT   "Complete genome sequence of Anabaena variabilis ATCC 29413.";
RL   Stand. Genomic Sci. 9:562-573(2014).
RN   [2]
RP   PROTEIN SEQUENCE OF 2-44.
RX   PubMed=1618755; DOI=10.1016/s0021-9258(18)42303-4;
RA   Nyhus K.J., Ikeuchi M., Inoue Y., Whitmarsh J., Pakrasi H.B.;
RT   "Purification and characterization of the photosystem I complex from the
RT   filamentous cyanobacterium Anabaena variabilis ATCC 29413.";
RL   J. Biol. Chem. 267:12489-12495(1992).
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   EMBL; CP000117; ABA24319.1; -; Genomic_DNA.
DR   PIR; C42799; C42799.
DR   AlphaFoldDB; P31089; -.
DR   SMR; P31089; -.
DR   STRING; 240292.Ava_4722; -.
DR   EnsemblBacteria; ABA24319; ABA24319; Ava_4722.
DR   KEGG; ava:Ava_4722; -.
DR   eggNOG; ENOG502ZBN6; Bacteria.
DR   HOGENOM; CLU_150527_0_0_3; -.
DR   OMA; HNPRRIG; -.
DR   Proteomes; UP000002533; Chromosome.
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   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:1618755"
FT   CHAIN           2..139
FT                   /note="Photosystem I reaction center subunit II"
FT                   /id="PRO_0000206049"
FT   REGION          119..139
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   139 AA;  15182 MW;  9D80539251010FA2 CRC64;
     MAETLSGKTP LFAGSTGGLL TKAVEEEKYA ITWTSPKAQV FELPTGGAAT MHEGENLLYI
     ARKEYGIALG GQLRKFKITN YKIYRILPSG ETTFIHPADG VFPEKVNPGR EKVRFNARSI
     GENPNPSQVK FSGKATYDA