ID   PSAE_PROM0              Reviewed;          69 AA.
AC   A3PB54;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   03-APR-2007, sequence version 1.
DT   25-MAY-2022, entry version 77.
DE   RecName: Full=Photosystem I reaction center subunit IV {ECO:0000255|HAMAP-Rule:MF_00613};
GN   Name=psaE {ECO:0000255|HAMAP-Rule:MF_00613}; OrderedLocusNames=P9301_03561;
OS   Prochlorococcus marinus (strain MIT 9301).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167546;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9301;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
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:0000255|HAMAP-Rule:MF_00613}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00613}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00613}.
CC   -!- SIMILARITY: Belongs to the PsaE family. {ECO:0000255|HAMAP-
CC       Rule:MF_00613}.
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DR   EMBL; CP000576; ABO16979.1; -; Genomic_DNA.
DR   RefSeq; WP_011817817.1; NC_009091.1.
DR   AlphaFoldDB; A3PB54; -.
DR   SMR; A3PB54; -.
DR   STRING; 167546.P9301_03561; -.
DR   EnsemblBacteria; ABO16979; ABO16979; P9301_03561.
DR   KEGG; pmg:P9301_03561; -.
DR   eggNOG; ENOG503313D; Bacteria.
DR   HOGENOM; CLU_136462_2_1_3; -.
DR   OMA; NYSGINT; -.
DR   Proteomes; UP000001430; 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   PANTHER; PTHR34549; PTHR34549; 1.
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..69
FT                   /note="Photosystem I reaction center subunit IV"
FT                   /id="PRO_1000061304"
SQ   SEQUENCE   69 AA;  7563 MW;  72161BF27A9F24F9 CRC64;
     MAISRGDLVR VKRPESYWYN EIGKVASVDT SGIKYNCVVR FDKVNYAGIS GTDGGANTNN
     FAESELEKA