ID   PSAE_PORUM              Reviewed;          62 AA.
AC   P69404; P29789;
DT   01-MAR-2005, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2005, sequence version 1.
DT   25-MAY-2022, entry version 50.
DE   RecName: Full=Photosystem I reaction center subunit IV;
DE            Short=PSI-E;
GN   Name=psaE;
OS   Porphyra umbilicalis (Purple laver) (Red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Bangiales; Bangiaceae; Porphyra.
OX   NCBI_TaxID=2786;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=Avonport;
RX   PubMed=1373082; DOI=10.1007/bf00020018;
RA   Reith M.;
RT   "psaE and trnS(CGA) are encoded on the plastid genome of the red alga
RT   Porphyra umbilicalis.";
RL   Plant Mol. Biol. 18:773-775(1992).
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: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the PsaE family. {ECO:0000305}.
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DR   EMBL; X60434; CAA42961.1; -; Genomic_DNA.
DR   PIR; S20861; F1PR4U.
DR   AlphaFoldDB; P69404; -.
DR   SMR; P69404; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
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   Chloroplast; Membrane; Photosynthesis; Photosystem I; Plastid; Thylakoid.
FT   CHAIN           1..62
FT                   /note="Photosystem I reaction center subunit IV"
FT                   /id="PRO_0000204398"
SQ   SEQUENCE   62 AA;  7172 MW;  5DEFE8CC4B6E9843 CRC64;
     MERGSKVKIL RKESYWYQEI GTVAAMDKSG IKYPVLVRFE KVNYNNVNTN SFADNELIDL
     GK