ID   YCF4_MESVI              Reviewed;         187 AA.
AC   Q9MUN8;
DT   11-JAN-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, sequence version 1.
DT   03-AUG-2022, entry version 61.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
OS   Mesostigma viride (Green alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Mesostigmatophyceae;
OC   Mesostigmatales; Mesostigmataceae; Mesostigma.
OX   NCBI_TaxID=41882;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NIES-296 / KY-14 / CCMP 2046;
RX   PubMed=10688199; DOI=10.1038/35001059;
RA   Lemieux C., Otis C., Turmel M.;
RT   "Ancestral chloroplast genome in Mesostigma viride reveals an early branch
RT   of green plant evolution.";
RL   Nature 403:649-652(2000).
CC   -!- FUNCTION: Seems to be required for the assembly of the photosystem I
CC       complex. {ECO:0000255|HAMAP-Rule:MF_00437}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00437}; Multi-pass membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00437}.
CC   -!- SIMILARITY: Belongs to the Ycf4 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00437}.
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DR   EMBL; AF166114; AAF43862.1; -; Genomic_DNA.
DR   RefSeq; NP_038422.1; NC_002186.1.
DR   AlphaFoldDB; Q9MUN8; -.
DR   SMR; Q9MUN8; -.
DR   GeneID; 800873; -.
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:InterPro.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00437; Ycf4; 1.
DR   InterPro; IPR003359; PSI_Ycf4_assembly.
DR   Pfam; PF02392; Ycf4; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; Photosynthesis; Plastid; Thylakoid; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..187
FT                   /note="Photosystem I assembly protein Ycf4"
FT                   /id="PRO_0000217613"
FT   TRANSMEM        25..47
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        62..84
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   187 AA;  21338 MW;  96302B09863EDDD6 CRC64;
     MINFSTNSDL ILRESVVGSR RISNYWWASV VLLGASGFLI VGISSYLQYD LVPFLSAKNI
     VFVPQGLVMC FYGSAGILLS IYLWLTIFWN VGEGYNEFDK VNGLVRIFRW GYPGKDRRIN
     IVYDIKDIQA IRVEIKEGIN PRRVIYLKIK GTRDMPLTRI GQPLTLAEIE EQAARLARFL
     QVNIEGI