ID   PSAJ1_PROM1             Reviewed;          45 AA.
AC   A2C0S5;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   20-FEB-2007, sequence version 1.
DT   25-MAY-2022, entry version 78.
DE   RecName: Full=Photosystem I reaction center subunit IX 1 {ECO:0000255|HAMAP-Rule:MF_00522};
GN   Name=psaJ1 {ECO:0000255|HAMAP-Rule:MF_00522};
GN   OrderedLocusNames=NATL1_05231;
OS   Prochlorococcus marinus (strain NATL1A).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=167555;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NATL1A;
RX   PubMed=18159947; DOI=10.1371/journal.pgen.0030231;
RA   Kettler G.C., Martiny A.C., Huang K., Zucker J., Coleman M.L., Rodrigue S.,
RA   Chen F., Lapidus A., Ferriera S., Johnson J., Steglich C., Church G.M.,
RA   Richardson P., Chisholm S.W.;
RT   "Patterns and implications of gene gain and loss in the evolution of
RT   Prochlorococcus.";
RL   PLoS Genet. 3:2515-2528(2007).
CC   -!- FUNCTION: May help in the organization of the PsaE and PsaF subunits.
CC       {ECO:0000255|HAMAP-Rule:MF_00522}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00522}; Single-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00522}.
CC   -!- SIMILARITY: Belongs to the PsaJ family. {ECO:0000255|HAMAP-
CC       Rule:MF_00522}.
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DR   EMBL; CP000553; ABM75085.1; -; Genomic_DNA.
DR   RefSeq; WP_011294433.1; NC_008819.1.
DR   AlphaFoldDB; A2C0S5; -.
DR   SMR; A2C0S5; -.
DR   STRING; 167555.NATL1_05231; -.
DR   EnsemblBacteria; ABM75085; ABM75085; NATL1_05231.
DR   KEGG; pme:NATL1_05231; -.
DR   eggNOG; ENOG5033A5A; Bacteria.
DR   HOGENOM; CLU_212133_1_1_3; -.
DR   Proteomes; UP000002592; Chromosome.
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:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
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   Membrane; Photosynthesis; Photosystem I; Thylakoid; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..45
FT                   /note="Photosystem I reaction center subunit IX 1"
FT                   /id="PRO_1000050918"
FT   TRANSMEM        9..29
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00522"
SQ   SEQUENCE   45 AA;  5345 MW;  07E0F034D186FC2B CRC64;
     MFQLFRTKWF RSAPVVATIW ITLTAGIIVE FNRFVPDLLF HPMSF