ID   PSAI_CHAGL              Reviewed;          36 AA.
AC   Q8M9X5;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   25-MAY-2022, entry version 63.
DE   RecName: Full=Photosystem I reaction center subunit VIII {ECO:0000255|HAMAP-Rule:MF_00431};
DE            Short=PSI-I {ECO:0000255|HAMAP-Rule:MF_00431};
GN   Name=psaI {ECO:0000255|HAMAP-Rule:MF_00431};
OS   Chaetosphaeridium globosum (Charophycean green alga) (Herposteiron
OS   globosum).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Coleochaetophyceae; Coleochaetales;
OC   Chaetosphaeridiaceae; Chaetosphaeridium.
OX   NCBI_TaxID=96477;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=M1311;
RX   PubMed=12161560; DOI=10.1073/pnas.162203299;
RA   Turmel M., Otis C., Lemieux C.;
RT   "The chloroplast and mitochondrial genome sequences of the charophyte
RT   Chaetosphaeridium globosum: insights into the timing of the events that
RT   restructured organelle DNAs within the green algal lineage that led to land
RT   plants.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:11275-11280(2002).
CC   -!- FUNCTION: May help in the organization of the PsaL subunit.
CC       {ECO:0000255|HAMAP-Rule:MF_00431}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00431}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00431}.
CC   -!- SIMILARITY: Belongs to the PsaI family. {ECO:0000255|HAMAP-
CC       Rule:MF_00431}.
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DR   EMBL; AF494278; AAM96535.1; -; Genomic_DNA.
DR   RefSeq; NP_683813.1; NC_004115.1.
DR   AlphaFoldDB; Q8M9X5; -.
DR   SMR; Q8M9X5; -.
DR   GeneID; 860691; -.
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:0009522; C:photosystem I; IEA:UniProtKB-KW.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00431; PSI_PsaI; 1.
DR   InterPro; IPR001302; PSI_PsaI.
DR   InterPro; IPR036357; PSI_PsaI_sf.
DR   PANTHER; PTHR35775; PTHR35775; 1.
DR   Pfam; PF00796; PSI_8; 1.
DR   SUPFAM; SSF81540; SSF81540; 1.
DR   TIGRFAMs; TIGR03052; PS_I_psaI; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; Photosynthesis; Photosystem I; Plastid; Thylakoid;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..36
FT                   /note="Photosystem I reaction center subunit VIII"
FT                   /id="PRO_0000194649"
FT   TRANSMEM        5..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00431"
SQ   SEQUENCE   36 AA;  3876 MW;  963F419C07BD405D CRC64;
     MAASFLPSIL VPLVGLVFPA IAIASLFIYI EQDEII