ID   PSAF_HORVU              Reviewed;         235 AA.
AC   P13192;
DT   01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-1994, sequence version 2.
DT   03-AUG-2022, entry version 105.
DE   RecName: Full=Photosystem I reaction center subunit III, chloroplastic;
DE   AltName: Full=Light-harvesting complex I 17 kDa protein;
DE   AltName: Full=PSI-F;
DE   Flags: Precursor;
GN   Name=PSAF;
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].
RX   PubMed=7811981; DOI=10.1007/bf00040704;
RA   Scott M.P., Nielsen V.S., Knoetzel J., Andersen R., Moller B.L.;
RT   "Import of the barley PSI-F subunit into the thylakoid lumen of isolated
RT   chloroplasts.";
RL   Plant Mol. Biol. 26:1223-1229(1994).
RN   [2]
RP   PROTEIN SEQUENCE OF 78-98.
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: Probably participates in efficiency of electron transfer from
CC       plastocyanin to P700 (or cytochrome c553 in algae and cyanobacteria).
CC       This plastocyanin-docking protein contributes to the specific
CC       association of plastocyanin to PSI.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid lumen.
CC   -!- SIMILARITY: Belongs to the PsaF family. {ECO:0000305}.
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DR   EMBL; U08135; AAA68147.1; -; mRNA.
DR   PIR; S51813; S51813.
DR   PDB; 7EW6; EM; 3.40 A; F=1-235.
DR   PDB; 7F9O; EM; 4.50 A; F/j=1-235.
DR   PDBsum; 7EW6; -.
DR   PDBsum; 7F9O; -.
DR   AlphaFoldDB; P13192; -.
DR   SMR; P13192; -.
DR   PRIDE; P13192; -.
DR   EnsemblPlants; HORVU.MOREX.r2.5HG0427640.1; HORVU.MOREX.r2.5HG0427640.1.CDS.1; HORVU.MOREX.r2.5HG0427640.
DR   EnsemblPlants; HORVU.MOREX.r2.5HG0427640.1.mrna1; HORVU.MOREX.r2.5HG0427640.1.mrna1.cds1; HORVU.MOREX.r2.5HG0427640.1.
DR   Gramene; HORVU.MOREX.r2.5HG0427640.1; HORVU.MOREX.r2.5HG0427640.1.CDS.1; HORVU.MOREX.r2.5HG0427640.
DR   Gramene; HORVU.MOREX.r2.5HG0427640.1.mrna1; HORVU.MOREX.r2.5HG0427640.1.mrna1.cds1; HORVU.MOREX.r2.5HG0427640.1.
DR   ExpressionAtlas; P13192; baseline and differential.
DR   GO; GO:0009543; C:chloroplast thylakoid lumen; IEA:UniProtKB-SubCell.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.8.110; -; 1.
DR   InterPro; IPR003666; PSI_PsaF.
DR   InterPro; IPR036577; PSI_PsaF_sf.
DR   PANTHER; PTHR34939; PTHR34939; 1.
DR   Pfam; PF02507; PSI_PsaF; 1.
DR   SUPFAM; SSF81536; SSF81536; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Chloroplast; Direct protein sequencing; Photosynthesis;
KW   Photosystem I; Plastid; Thylakoid; Transit peptide.
FT   TRANSIT         1..77
FT                   /note="Chloroplast"
FT                   /evidence="ECO:0000269|PubMed:2680596"
FT   CHAIN           78..235
FT                   /note="Photosystem I reaction center subunit III,
FT                   chloroplastic"
FT                   /id="PRO_0000029345"
FT   CONFLICT        85
FT                   /note="C -> A (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        88
FT                   /note="S -> E (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        91
FT                   /note="F -> A (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   CONFLICT        94..97
FT                   /note="REKQ -> HEQD (in Ref. 2; AA sequence)"
FT                   /evidence="ECO:0000305"
FT   HELIX           79..81
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   TURN            85..87
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   HELIX           91..106
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   HELIX           114..133
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   TURN            134..137
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   STRAND          146..148
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   TURN            158..160
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   HELIX           161..186
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   STRAND          187..189
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   HELIX           193..196
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   TURN            200..206
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   HELIX           207..211
FT                   /evidence="ECO:0007829|PDB:7EW6"
FT   HELIX           213..223
FT                   /evidence="ECO:0007829|PDB:7EW6"
SQ   SEQUENCE   235 AA;  24838 MW;  7899183C7405380A CRC64;
     MAALAASIAT STAFAAKPRL SRPPARLSVS CSASSGDNNN STATPSLSAS IKTFSAALAL
     SSVLLSSAAT SPPPAAADIA GLTPCKESKA FAKREKQSVK KLNSSLKKYA PDSAPALAIQ
     ATIDKTKRRF ENYGKFGLLC GSDGLPHLIV SGDQRHWGEF ITPGVLFLYI AGWIGWVGRS
     YLIAVSGEKK PAMREIIIDV ELAARIIPRG FIWPVAAYRE LINGDLVVDD ADIGY