ID   PSAJ_CERDE              Reviewed;          44 AA.
AC   A8SEC3;
DT   25-NOV-2008, integrated into UniProtKB/Swiss-Prot.
DT   15-JAN-2008, sequence version 1.
DT   25-MAY-2022, entry version 41.
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};
OS   Ceratophyllum demersum (Rigid hornwort) (Coontail).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; Ceratophyllales; Ceratophyllaceae;
OC   Ceratophyllum.
OX   NCBI_TaxID=4428;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=18048334; DOI=10.1073/pnas.0708072104;
RA   Moore M.J., Bell C.D., Soltis P.S., Soltis D.E.;
RT   "Using plastid genome-scale data to resolve enigmatic relationships among
RT   basal angiosperms.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:19363-19368(2007).
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; EF614270; ABQ81470.1; -; Genomic_DNA.
DR   RefSeq; YP_001542467.1; NC_009962.1.
DR   AlphaFoldDB; A8SEC3; -.
DR   SMR; A8SEC3; -.
DR   GeneID; 5729418; -.
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   PANTHER; PTHR36082; PTHR36082; 1.
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..44
FT                   /note="Photosystem I reaction center subunit IX"
FT                   /id="PRO_0000354134"
FT   TRANSMEM        7..27
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00522"
SQ   SEQUENCE   44 AA;  5007 MW;  C77BAD29FAE6C88A CRC64;
     MRDIKTYLSV APVISTLWFG SLAGLLIEIN RLFPDALVFP FFSF