ID   PSAJ_NEOYE              Reviewed;          42 AA.
AC   Q1XDU3;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   02-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 50.
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   Neopyropia yezoensis (Susabi-nori) (Pyropia yezoensis).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Bangiales; Bangiaceae; Neopyropia.
OX   NCBI_TaxID=2788;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=U-51;
RA   Kunimoto M., Morishima K., Yoshikawa M., Fukuda S., Kobayashi T.,
RA   Kobayashi M., Okazaki T., Ohara I., Nakayama I.;
RT   "Whole genome sequence of Porphyra yezoensis chloroplast.";
RL   Submitted (NOV-2003) to the EMBL/GenBank/DDBJ databases.
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; AP006715; BAE92318.1; -; Genomic_DNA.
DR   RefSeq; YP_536875.1; NC_007932.1.
DR   AlphaFoldDB; Q1XDU3; -.
DR   SMR; Q1XDU3; -.
DR   GeneID; 3978953; -.
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..42
FT                   /note="Photosystem I reaction center subunit IX"
FT                   /id="PRO_0000276083"
FT   TRANSMEM        8..28
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00522"
SQ   SEQUENCE   42 AA;  4969 MW;  F8B2EDA13F8BCCFF CRC64;
     MNNNFTKYLS TAPVIGVLWM TFTAGFIIEL NRFFPDVLYF YL