ID   PSAG_SPIOL              Reviewed;         167 AA.
AC   P12357;
DT   01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1989, sequence version 1.
DT   08-NOV-2023, entry version 109.
DE   RecName: Full=Photosystem I reaction center subunit V, chloroplastic;
DE   AltName: Full=PSI-G;
DE   AltName: Full=Photosystem I 9 kDa protein;
DE   Flags: Precursor;
GN   Name=PSAG;
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], AND PARTIAL PROTEIN SEQUENCE.
RX   PubMed=3049152; DOI=10.1016/0014-5793(88)80205-9;
RA   Steppuhn J., Hermans J., Nechushtai R., Ljungberg U., Thuemmler F.,
RA   Lottspeich F., Herrmann R.G.;
RT   "Nucleotide sequence of cDNA clones encoding the entire precursor
RT   polypeptides for subunits IV and V of the photosystem I reaction center
RT   from spinach.";
RL   FEBS Lett. 237:218-224(1988).
CC   -!- FUNCTION: Not yet known.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000305}; Multi-pass membrane protein {ECO:0000305}.
CC   -!- SIMILARITY: Belongs to the PsaG/PsaK family. {ECO:0000305}.
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DR   EMBL; X13134; CAA31524.1; -; mRNA.
DR   PIR; S00452; F1SP5.
DR   PDB; 2O01; X-ray; 3.40 A; G=73-167.
DR   PDB; 2WSC; X-ray; 3.30 A; G=1-167.
DR   PDB; 2WSE; X-ray; 3.49 A; G=1-167.
DR   PDB; 2WSF; X-ray; 3.48 A; G=1-167.
DR   PDB; 4XK8; X-ray; 2.80 A; G/g=70-164.
DR   PDBsum; 2O01; -.
DR   PDBsum; 2WSC; -.
DR   PDBsum; 2WSE; -.
DR   PDBsum; 2WSF; -.
DR   PDBsum; 4XK8; -.
DR   AlphaFoldDB; P12357; -.
DR   SMR; P12357; -.
DR   EvolutionaryTrace; P12357; -.
DR   Proteomes; UP001155700; Unplaced.
DR   GO; GO:0009535; C:chloroplast thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0009522; C:photosystem I; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-KW.
DR   DisProt; DP00984; -.
DR   Gene3D; 1.10.286.40; Chlorophyll a-b binding protein like; 1.
DR   InterPro; IPR017494; PSI_PsaG.
DR   InterPro; IPR000549; PSI_PsaG/PsaK.
DR   InterPro; IPR023618; PSI_PsaG/PsaK_dom.
DR   InterPro; IPR016370; PSI_PsaG/PsaK_pln.
DR   NCBIfam; TIGR03051; PS_I_psaG_plant; 1.
DR   PANTHER; PTHR34195:SF1; PHOTOSYSTEM I REACTION CENTER SUBUNIT V, CHLOROPLASTIC; 1.
DR   PANTHER; PTHR34195; PHOTOSYSTEM I REACTION CENTER SUBUNIT V, CHLOROPLASTIC-RELATED; 1.
DR   Pfam; PF01241; PSI_PSAK; 1.
DR   PIRSF; PIRSF002912; PSI_PsaK; 1.
DR   PROSITE; PS01026; PHOTOSYSTEM_I_PSAGK; 1.
PE   1: Evidence at protein level;
KW   3D-structure; Chloroplast; Direct protein sequencing; Membrane;
KW   Photosynthesis; Photosystem I; Plastid; Reference proteome; Thylakoid;
KW   Transit peptide; Transmembrane; Transmembrane helix.
FT   TRANSIT         1..69
FT                   /note="Chloroplast"
FT   CHAIN           70..167
FT                   /note="Photosystem I reaction center subunit V,
FT                   chloroplastic"
FT                   /id="PRO_0000029390"
FT   TRANSMEM        75..95
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        137..157
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   REGION          1..32
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
FT   HELIX           73..90
FT                   /evidence="ECO:0007829|PDB:4XK8"
FT   HELIX           93..102
FT                   /evidence="ECO:0007829|PDB:4XK8"
FT   STRAND          105..109
FT                   /evidence="ECO:0007829|PDB:2WSC"
FT   TURN            112..116
FT                   /evidence="ECO:0007829|PDB:4XK8"
FT   HELIX           118..120
FT                   /evidence="ECO:0007829|PDB:4XK8"
FT   HELIX           124..127
FT                   /evidence="ECO:0007829|PDB:4XK8"
FT   STRAND          131..133
FT                   /evidence="ECO:0007829|PDB:4XK8"
FT   HELIX           137..159
FT                   /evidence="ECO:0007829|PDB:4XK8"
SQ   SEQUENCE   167 AA;  18215 MW;  E1C6DF578FBDBE99 CRC64;
     MAAATASLSS TLLAPCSSKQ PQPQQQHQHQ QLKCKSFSGL RPLKLNISSN NSSSSLSMSS
     ARRSMTCRAE LSPSLVISLS TGLSLFLGRF VFFNFQRENM AKQVPEQNGM SHFEAGDTRA
     KEYVSLLKSN DPVGFNIVDV LAWGSIGHIV AYYILATASN GYDPSFF
//