ID   PSAE_SYNEL              Reviewed;          76 AA.
AC   P0A424; P25898;
DT   15-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 2.
DT   25-MAY-2022, entry version 65.
DE   RecName: Full=Photosystem I reaction center subunit IV;
DE   AltName: Full=Photosystem I 8.1 kDa protein;
DE   AltName: Full=p30 protein;
GN   Name=psaE;
OS   Synechococcus elongatus.
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=32046;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8486290; DOI=10.1016/0378-1119(93)90618-d;
RA   Muehlenhoff U., Haehnel W., Witt H.T., Herrmann R.G.;
RT   "Genes encoding eleven subunits of photosystem I from the thermophilic
RT   cyanobacterium Synechococcus sp.";
RL   Gene 127:71-78(1993).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Floss B., Igloi G., Cassier-Chauvat C., Muehlenhoff U.;
RT   "Molecular characterization and overexpression of the petF gene from
RT   Synechococcus elongatus: evidence for a second site of electrostatic
RT   interaction between ferredoxin and the PSI-D subunit.";
RL   Photosyn. Res. 54:63-71(1997).
RN   [3]
RP   PROTEIN SEQUENCE OF 2-15.
RX   PubMed=8382079; DOI=10.1016/0005-2728(93)90187-k;
RA   Hatanaka H., Sonoike K., Hirano M., Katoh S.;
RT   "Small subunits of Photosystem I reaction center complexes from
RT   Synechococcus elongatus. I. Is the psaF gene product required for oxidation
RT   of cytochrome c-553?";
RL   Biochim. Biophys. Acta 1141:45-51(1993).
CC   -!- FUNCTION: Stabilizes the interaction between PsaC and the PSI core,
CC       assists the docking of the ferredoxin to PSI and interacts with
CC       ferredoxin-NADP oxidoreductase.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane; Peripheral membrane
CC       protein.
CC   -!- SIMILARITY: Belongs to the PsaE family. {ECO:0000305}.
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DR   EMBL; X63766; CAA45302.1; -; Genomic_DNA.
DR   EMBL; Y10290; CAA71332.1; -; Genomic_DNA.
DR   AlphaFoldDB; P0A424; -.
DR   SMR; P0A424; -.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR   GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00613; PSI_PsaE; 1.
DR   InterPro; IPR008990; Elect_transpt_acc-like_dom_sf.
DR   InterPro; IPR003375; PSI_PsaE.
DR   PANTHER; PTHR34549; PTHR34549; 1.
DR   Pfam; PF02427; PSI_PsaE; 1.
DR   SUPFAM; SSF50090; SSF50090; 1.
PE   1: Evidence at protein level;
KW   Direct protein sequencing; Membrane; Photosynthesis; Photosystem I;
KW   Thylakoid.
FT   INIT_MET        1
FT                   /note="Removed"
FT                   /evidence="ECO:0000269|PubMed:8382079"
FT   CHAIN           2..76
FT                   /note="Photosystem I reaction center subunit IV"
FT                   /id="PRO_0000204409"
SQ   SEQUENCE   76 AA;  8389 MW;  64C4259C0B11DB2E CRC64;
     MVQRGSKVKI LRPESYWYNE VGTVASVDQT PGVKYPVIVR FDKVNYTGYS GSASGVNTNN
     FALHEVQEVA PPKKGK