ID   PSAH_SPIOL              Reviewed;         144 AA.
AC   P22179;
DT   01-AUG-1991, integrated into UniProtKB/Swiss-Prot.
DT   01-AUG-1991, sequence version 1.
DT   25-MAY-2022, entry version 90.
DE   RecName: Full=Photosystem I reaction center subunit VI, chloroplastic;
DE            Short=PSI-H;
DE   AltName: Full=Light-harvesting complex I 11 kDa protein;
DE   Flags: Precursor;
GN   Name=PSAH;
OS   Spinacia oleracea (Spinach).
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   Caryophyllales; Chenopodiaceae; Chenopodioideae; Anserineae; Spinacia.
OX   NCBI_TaxID=3562;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [MRNA].
RX   PubMed=2688927; DOI=10.1007/bf00393402;
RA   Steppuhn J., Hermans J., Nechushtai R., Herrmann G.S., Herrmann R.G.;
RT   "Nucleotide sequences of cDNA clones encoding the entire precursor
RT   polypeptide for subunit VI and of the plastome-encoded gene for subunit VII
RT   of the photosystem I reaction center from spinach.";
RL   Curr. Genet. 16:99-108(1989).
CC   -!- FUNCTION: Possible role could be the docking of the LHC I antenna
CC       complex to the core complex.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Single-pass membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the psaH family. {ECO:0000305}.
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DR   EMBL; X16858; CAA34749.1; -; mRNA.
DR   PIR; S00453; S00453.
DR   PDB; 2O01; X-ray; 3.40 A; H=70-144.
DR   PDB; 2WSC; X-ray; 3.30 A; H=1-144.
DR   PDB; 2WSE; X-ray; 3.49 A; H=1-144.
DR   PDB; 2WSF; X-ray; 3.48 A; H=1-144.
DR   PDBsum; 2O01; -.
DR   PDBsum; 2WSC; -.
DR   PDBsum; 2WSE; -.
DR   PDBsum; 2WSF; -.
DR   AlphaFoldDB; P22179; -.
DR   SMR; P22179; -.
DR   EvolutionaryTrace; P22179; -.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0009538; C:photosystem I reaction center; IEA:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   DisProt; DP00803; -.
DR   InterPro; IPR004928; PSI_PsaH.
DR   PANTHER; PTHR34787; PTHR34787; 1.
DR   Pfam; PF03244; PSI_PsaH; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Chloroplast; Membrane; Photosynthesis; Photosystem I;
KW   Plastid; Thylakoid; Transit peptide; Transmembrane; Transmembrane helix.
FT   TRANSIT         1..49
FT                   /note="Chloroplast"
FT   CHAIN           50..144
FT                   /note="Photosystem I reaction center subunit VI,
FT                   chloroplastic"
FT                   /id="PRO_0000029419"
FT   TRANSMEM        104..122
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   STRAND          75..77
FT                   /evidence="ECO:0007829|PDB:2O01"
FT   STRAND          87..93
FT                   /evidence="ECO:0007829|PDB:2WSC"
FT   STRAND          99..101
FT                   /evidence="ECO:0007829|PDB:2O01"
FT   TURN            104..109
FT                   /evidence="ECO:0007829|PDB:2WSC"
FT   HELIX           110..112
FT                   /evidence="ECO:0007829|PDB:2WSC"
FT   TURN            113..118
FT                   /evidence="ECO:0007829|PDB:2WSC"
FT   STRAND          138..141
FT                   /evidence="ECO:0007829|PDB:2O01"
SQ   SEQUENCE   144 AA;  15325 MW;  552B4B7E063375A5 CRC64;
     MASLATLAAV QPTTLKGLAG SSIAGTKLHI KPARQSFKLN NVRSGAIVAK YGDKSVYFDL
     EDIANTTGQW DVYGSDAPSP YNSLQSKFFE TFAAPFTKRG LLLKFLILGG GSLLTYVSAN
     APQDVLPITR GPQQPPKLGP RGKI