ID   PSAE_GLOVI              Reviewed;          65 AA.
AC   Q7NFW6;
DT   01-FEB-2005, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   03-AUG-2022, entry version 100.
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=gsl3408;
OS   Gloeobacter violaceus (strain ATCC 29082 / PCC 7421).
OC   Bacteria; Cyanobacteria; Gloeobacteria; Gloeobacterales; Gloeobacteraceae;
OC   Gloeobacter.
OX   NCBI_TaxID=251221;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29082 / PCC 7421;
RX   PubMed=14621292; DOI=10.1093/dnares/10.4.137;
RA   Nakamura Y., Kaneko T., Sato S., Mimuro M., Miyashita H., Tsuchiya T.,
RA   Sasamoto S., Watanabe A., Kawashima K., Kishida Y., Kiyokawa C., Kohara M.,
RA   Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Takeuchi C., Yamada M.,
RA   Tabata S.;
RT   "Complete genome structure of Gloeobacter violaceus PCC 7421, a
RT   cyanobacterium that lacks thylakoids.";
RL   DNA Res. 10:137-145(2003).
RN   [2]
RP   IDENTIFICATION BY MASS SPECTROMETRY, AND CHARACTERIZATION OF PHOTOSYSTEM I.
RC   STRAIN=ATCC 29082 / PCC 7421;
RX   PubMed=15589832; DOI=10.1016/j.febslet.2004.11.013;
RA   Inoue H., Tsuchiya T., Satoh S., Miyashita H., Kaneko T., Tabata S.,
RA   Tanaka A., Mimuro M.;
RT   "Unique constitution of photosystem I with a novel subunit in the
RT   cyanobacterium Gloeobacter violaceus PCC 7421.";
RL   FEBS Lett. 578:275-279(2004).
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   -!- SUBUNIT: The G.violaceus PSI reaction center is composed of one copy
CC       each of PsaA,B,C,D,E,F,L,M and Z, and forms trimeric complexes.
CC   -!- SUBCELLULAR LOCATION: Cell inner membrane; Peripheral membrane protein;
CC       Cytoplasmic side.
CC   -!- SIMILARITY: Belongs to the PsaE family. {ECO:0000255|HAMAP-
CC       Rule:MF_00613}.
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DR   EMBL; BA000045; BAC91349.1; -; Genomic_DNA.
DR   RefSeq; NP_926354.1; NC_005125.1.
DR   RefSeq; WP_011143397.1; NC_005125.1.
DR   PDB; 7F4V; EM; 2.04 A; aE/bE/cE=1-65.
DR   PDBsum; 7F4V; -.
DR   AlphaFoldDB; Q7NFW6; -.
DR   SMR; Q7NFW6; -.
DR   STRING; 251221.35213980; -.
DR   EnsemblBacteria; BAC91349; BAC91349; BAC91349.
DR   KEGG; gvi:gsl3408; -.
DR   PATRIC; fig|251221.4.peg.3444; -.
DR   eggNOG; ENOG503313D; Bacteria.
DR   HOGENOM; CLU_136462_2_1_3; -.
DR   InParanoid; Q7NFW6; -.
DR   OMA; NYSGINT; -.
DR   OrthoDB; 1994429at2; -.
DR   PhylomeDB; Q7NFW6; -.
DR   Proteomes; UP000000557; Chromosome.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR   GO; GO:0005886; C:plasma 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   3D-structure; Cell inner membrane; Cell membrane; Membrane; Photosynthesis;
KW   Photosystem I; Reference proteome.
FT   CHAIN           1..65
FT                   /note="Photosystem I reaction center subunit IV"
FT                   /id="PRO_0000204402"
SQ   SEQUENCE   65 AA;  7458 MW;  3EB51B59D06530D9 CRC64;
     MAIERGAKVR ILRKESYWYR EVGTVASVDK SEKTIYPVTV RFEKVNYSGI NTNNFGVSEL
     EEVEA