ID   PSAE_SYNE7              Reviewed;          75 AA.
AC   Q31NL7;
DT   05-FEB-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   03-AUG-2022, entry version 78.
DE   RecName: Full=Photosystem I reaction center subunit IV {ECO:0000255|HAMAP-Rule:MF_00613};
GN   Name=psaE {ECO:0000255|HAMAP-Rule:MF_00613};
GN   OrderedLocusNames=Synpcc7942_1322;
OS   Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans
OS   R2).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=1140;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7942 / FACHB-805;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
RL   Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
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; CP000100; ABB57352.1; -; Genomic_DNA.
DR   RefSeq; WP_011242545.1; NC_007604.1.
DR   PDB; 6KIF; EM; 3.30 A; E/Q/i=1-75.
DR   PDB; 6KIG; EM; 2.90 A; E/Q/i=1-75.
DR   PDBsum; 6KIF; -.
DR   PDBsum; 6KIG; -.
DR   AlphaFoldDB; Q31NL7; -.
DR   SMR; Q31NL7; -.
DR   STRING; 1140.Synpcc7942_1322; -.
DR   PRIDE; Q31NL7; -.
DR   EnsemblBacteria; ABB57352; ABB57352; Synpcc7942_1322.
DR   KEGG; syf:Synpcc7942_1322; -.
DR   eggNOG; ENOG503313D; Bacteria.
DR   HOGENOM; CLU_136462_2_1_3; -.
DR   OMA; NYSGINT; -.
DR   OrthoDB; 1994429at2; -.
DR   BioCyc; MetaCyc:SYNPCC7942_1322-MON; -.
DR   BioCyc; SYNEL:SYNPCC7942_1322-MON; -.
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   3D-structure; Membrane; Photosynthesis; Photosystem I; Thylakoid.
FT   CHAIN           1..75
FT                   /note="Photosystem I reaction center subunit IV"
FT                   /id="PRO_1000061310"
SQ   SEQUENCE   75 AA;  8138 MW;  9AC5B2D518D6B551 CRC64;
     MAIARGDKVR ILRPESYWFN EVGTVASVDQ SGIKYPVVVR FEKVNYNGFS GSDGGVNTNN
     FAEAELQVVA AAAKK