ID   PSAJ_HETA4              Reviewed;          41 AA.
AC   B2XTX0;
DT   25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-SEP-2008, sequence version 1.
DT   03-AUG-2022, entry version 34.
DE   RecName: Full=Photosystem I reaction center subunit IX {ECO:0000255|HAMAP-Rule:MF_00522};
DE   AltName: Full=PSI-J {ECO:0000255|HAMAP-Rule:MF_00522};
GN   Name=psaJ {ECO:0000255|HAMAP-Rule:MF_00522};
GN   OrderedLocusNames=Heak452_Cp155;
OS   Heterosigma akashiwo (strain CCMP452 / OLISTH).
OG   Plastid; Chloroplast.
OC   Eukaryota; Sar; Stramenopiles; Ochrophyta; Raphidophyceae; Chattonellales;
OC   Chattonellaceae; Heterosigma.
OX   NCBI_TaxID=536046;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=18462506; DOI=10.1186/1471-2164-9-211;
RA   Cattolico R.A., Jacobs M.A., Zhou Y., Chang J., Duplessis M., Lybrand T.,
RA   McKay J., Ong H.C., Sims E., Rocap G.;
RT   "Chloroplast genome sequencing analysis of Heterosigma akashiwo CCMP452
RT   (West Atlantic) and NIES293 (West Pacific) strains.";
RL   BMC Genomics 9:211-211(2008).
CC   -!- FUNCTION: May help in the organization of the PsaE and PsaF subunits.
CC       {ECO:0000255|HAMAP-Rule:MF_00522}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00522}; Single-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00522}.
CC   -!- SIMILARITY: Belongs to the PsaJ family. {ECO:0000255|HAMAP-
CC       Rule:MF_00522}.
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DR   EMBL; EU168191; ABV70203.1; -; Genomic_DNA.
DR   RefSeq; YP_001936456.1; NC_010772.1.
DR   AlphaFoldDB; B2XTX0; -.
DR   SMR; B2XTX0; -.
DR   GeneID; 6335738; -.
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_00522; PSI_PsaJ; 1.
DR   InterPro; IPR002615; PSI_PsaJ.
DR   InterPro; IPR036062; PSI_PsaJ_sf.
DR   Pfam; PF01701; PSI_PsaJ; 1.
DR   SUPFAM; SSF81544; SSF81544; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; Photosynthesis; Photosystem I; Plastid; Thylakoid;
KW   Transmembrane; Transmembrane helix.
FT   CHAIN           1..41
FT                   /note="Photosystem I reaction center subunit IX"
FT                   /id="PRO_0000354175"
FT   TRANSMEM        7..29
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00522"
SQ   SEQUENCE   41 AA;  4667 MW;  B70CC6EE61E3BFFE CRC64;
     MDNFKKYLST APVLLTVWLS ITASGIMIIN RLYPDPLIFP I