ID   PSAE_HORVU              Reviewed;         147 AA.
AC   P13194;
DT   01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-APR-1990, sequence version 2.
DT   03-AUG-2022, entry version 104.
DE   RecName: Full=Photosystem I reaction center subunit IV, chloroplastic;
DE            Short=PSI-E;
DE   AltName: Full=Photosystem I 10.8 kDa polypeptide;
DE   Flags: Precursor;
GN   Name=PSAE;
OS   Hordeum vulgare (Barley).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Liliopsida; Poales; Poaceae; BOP clade;
OC   Pooideae; Triticodae; Triticeae; Hordeinae; Hordeum.
OX   NCBI_TaxID=4513;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RC   TISSUE=Seedling;
RX   PubMed=3049147; DOI=10.1016/0014-5793(88)80181-9;
RA   Okkels J.S., Jepsen L.B., Honberg L.S., Lehmbeck J., Scheller H.V.,
RA   Brandt P., Hoyer-Hansen G., Stummann B., Henningsen K.W., von Wettstein D.,
RA   Moeller B.L.;
RT   "A cDNA clone encoding a 10.8 kDa photosystem I polypeptide of barley.";
RL   FEBS Lett. 237:108-112(1988).
RN   [2]
RP   PROTEIN SEQUENCE OF 47-63.
RC   STRAIN=cv. Prato;
RX   PubMed=2680596; DOI=10.1016/0014-5793(89)81737-5;
RA   Anandan S., Vainstein A., Thornber J.P.;
RT   "Correlation of some published amino acid sequences for photosystem I
RT   polypeptides to a 17 kDa LHCI pigment-protein and to subunits III and IV of
RT   the core complex.";
RL   FEBS Lett. 256:150-154(1989).
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; Y00966; CAA68782.1; -; mRNA.
DR   PIR; S01326; F1BH4.
DR   PDB; 7EW6; EM; 3.40 A; E=1-147.
DR   PDB; 7F9O; EM; 4.50 A; E/i=1-147.
DR   PDBsum; 7EW6; -.
DR   PDBsum; 7F9O; -.
DR   AlphaFoldDB; P13194; -.
DR   SMR; P13194; -.
DR   PRIDE; P13194; -.
DR   EnsemblPlants; HORVU.MOREX.r2.5HG0438210.1; HORVU.MOREX.r2.5HG0438210.1; HORVU.MOREX.r2.5HG0438210.
DR   EnsemblPlants; HORVU.MOREX.r2.5HG0438210.1.mrna1; HORVU.MOREX.r2.5HG0438210.1.mrna1; HORVU.MOREX.r2.5HG0438210.1.
DR   Gramene; HORVU.MOREX.r2.5HG0438210.1; HORVU.MOREX.r2.5HG0438210.1; HORVU.MOREX.r2.5HG0438210.
DR   Gramene; HORVU.MOREX.r2.5HG0438210.1.mrna1; HORVU.MOREX.r2.5HG0438210.1.mrna1; HORVU.MOREX.r2.5HG0438210.1.
DR   ExpressionAtlas; P13194; baseline and differential.
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-KW.
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; Chloroplast; Direct protein sequencing; Membrane;
KW   Photosynthesis; Photosystem I; Plastid; Thylakoid; Transit peptide.
FT   TRANSIT         1..46
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000269|PubMed:2680596"
FT   CHAIN           47..147
FT                   /note="Photosystem I reaction center subunit IV,
FT                   chloroplastic"
FT                   /id="PRO_0000029381"
FT   REGION          49..91
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   STRAND          90..93
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   STRAND          96..100
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   STRAND          104..110
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   STRAND          120..123
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   HELIX           139..141
FT                   /evidence="ECO:0007829|PDB:7EW6"
SQ   SEQUENCE   147 AA;  15457 MW;  D0250038423F7182 CRC64;
     MASTNMASAT SRFMLAAGIP SGANGGVSSR VSFLPSNRLG LKLVARAEEP TAAAPAEPAP
     AADEKPEAAV ATKEPAKAKP PPRGPKRGTK VKILRRESYW YNGTGSVVTV DQDPNTRYPV
     VVRFAKVNYA GVSTNNYALD EIKEVAA