ID   PSAE_PROMM              Reviewed;          68 AA.
AC   Q7V8Y4;
DT   01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   25-MAY-2022, entry version 100.
DE   RecName: Full=Photosystem I reaction center subunit IV;
GN   Name=psaE; OrderedLocusNames=PMT_0187;
OS   Prochlorococcus marinus (strain MIT 9313).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=74547;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9313;
RX   PubMed=12917642; DOI=10.1038/nature01947;
RA   Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA   Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA   Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA   Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA   Chisholm S.W.;
RT   "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT   differentiation.";
RL   Nature 424:1042-1047(2003).
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. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000250};
CC       Peripheral membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the PsaE family. {ECO:0000305}.
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DR   EMBL; BX548175; CAE20362.1; -; Genomic_DNA.
DR   RefSeq; WP_011129566.1; NC_005071.1.
DR   AlphaFoldDB; Q7V8Y4; -.
DR   SMR; Q7V8Y4; -.
DR   STRING; 74547.PMT_0187; -.
DR   EnsemblBacteria; CAE20362; CAE20362; PMT_0187.
DR   KEGG; pmt:PMT_0187; -.
DR   eggNOG; ENOG503313D; Bacteria.
DR   HOGENOM; CLU_136462_2_1_3; -.
DR   OMA; NYSGINT; -.
DR   OrthoDB; 1994429at2; -.
DR   Proteomes; UP000001423; Chromosome.
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   Pfam; PF02427; PSI_PsaE; 1.
DR   SUPFAM; SSF50090; SSF50090; 1.
PE   3: Inferred from homology;
KW   Membrane; Photosynthesis; Photosystem I; Reference proteome; Thylakoid.
FT   CHAIN           1..68
FT                   /note="Photosystem I reaction center subunit IV"
FT                   /id="PRO_0000204405"
SQ   SEQUENCE   68 AA;  7648 MW;  6C02FE4B5D661B94 CRC64;
     MAISKGDKVR IRREESYWHN EVGTVASVDT TGKYGVLVRF EKTNYFGMQG TDNGNLTNSF
     AESELDRA