ID   PSAE_CYAPA              Reviewed;          70 AA.
AC   P48114;
DT   01-FEB-1996, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-1996, sequence version 1.
DT   03-AUG-2022, entry version 73.
DE   RecName: Full=Photosystem I reaction center subunit IV;
DE            Short=PSI-E;
GN   Name=psaE;
OS   Cyanophora paradoxa.
OG   Plastid; Cyanelle.
OC   Eukaryota; Glaucocystophyceae; Cyanophoraceae; Cyanophora.
OX   NCBI_TaxID=2762;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX LB 555 / Pringsheim;
RA   Stirewalt V.L., Michalowski C.B., Loeffelhardt W., Bohnert H.J.,
RA   Bryant D.A.;
RT   "Nucleotide sequence of the cyanelle DNA from Cyanophora paradoxa.";
RL   Plant Mol. Biol. Rep. 13:327-332(1995).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX LB 555 / Pringsheim;
RA   Loeffelhardt W., Stirewalt V.L., Michalowski C.B., Annarella M.,
RA   Farley J.Y., Schluchter W.M., Chung S., Newmann-Spallart C., Steiner J.M.,
RA   Jakowitsch J., Bohnert H.J., Bryant D.A.;
RT   "The complete sequence of the cyanelle genome of Cyanophora paradoxa: the
RT   genetic complexity of a primitive plastid.";
RL   (In) Schenk H.E.A., Herrmann R., Jeon K.W., Mueller N.E., Schwemmler W.
RL   (eds.);
RL   Eukaryotism and symbiosis, pp.40-48, Springer-Verlag, Heidelberg (1997).
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, cyanelle thylakoid membrane
CC       {ECO:0000250}; Peripheral membrane protein {ECO:0000250}; Stromal side
CC       {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the PsaE family. {ECO:0000305}.
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DR   EMBL; U30821; AAA81265.1; -; Genomic_DNA.
DR   PIR; T06922; T06922.
DR   RefSeq; NP_043234.1; NC_001675.1.
DR   PDB; 7DR0; EM; 3.30 A; E=1-70.
DR   PDB; 7DR1; EM; 3.20 A; E=1-70.
DR   PDB; 7DR2; EM; 3.80 A; aE/bE/cE/dE=1-70.
DR   PDBsum; 7DR0; -.
DR   PDBsum; 7DR1; -.
DR   PDBsum; 7DR2; -.
DR   AlphaFoldDB; P48114; -.
DR   SMR; P48114; -.
DR   GeneID; 801539; -.
DR   GO; GO:0033115; C:cyanelle 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   1: Evidence at protein level;
KW   3D-structure; Cyanelle; Membrane; Photosynthesis; Photosystem I; Plastid;
KW   Thylakoid.
FT   CHAIN           1..70
FT                   /note="Photosystem I reaction center subunit IV"
FT                   /id="PRO_0000204394"
SQ   SEQUENCE   70 AA;  8047 MW;  3CE6F50C94E28C72 CRC64;
     MVQRGSKVRI LRKESYWYQE IGTVASIDQS GIKYPVIVRF EKVNYSNVNS NNFSLDEVVE
     VEPPPSKKKA