ID   YCF4_TETOB              Reviewed;         205 AA.
AC   Q1KVR7;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   30-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 43.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
OS   Tetradesmus obliquus (Green alga) (Acutodesmus obliquus).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC   CS clade; Sphaeropleales; Scenedesmaceae; Tetradesmus.
OX   NCBI_TaxID=3088;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX 393;
RX   PubMed=16638149; DOI=10.1186/1471-2148-6-37;
RA   de Cambiaire J.-C., Otis C., Lemieux C., Turmel M.;
RT   "The complete chloroplast genome sequence of the chlorophycean green alga
RT   Scenedesmus obliquus reveals a compact gene organization and a biased
RT   distribution of genes on the two DNA strands.";
RL   BMC Evol. Biol. 6:37-37(2006).
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; DQ396875; ABD48290.1; -; Genomic_DNA.
DR   RefSeq; YP_636007.1; NC_008101.1.
DR   AlphaFoldDB; Q1KVR7; -.
DR   SMR; Q1KVR7; -.
DR   GeneID; 4099840; -.
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..205
FT                   /note="Photosystem I assembly protein Ycf4"
FT                   /id="PRO_0000275670"
FT   TRANSMEM        23..43
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        86..106
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   205 AA;  23704 MW;  6CA034BDC885140C CRC64;
     MNQENFIRRY FIIGERRFSN YWWATVILIG SFGFLLTGIS SYISTSLNST ALSSNIESQM
     QLPFFLSMLK NSNSTGAINF FPQGLLMCFY GSLGFLLSIY WWCLIFWNVG GGFNEFNKKE
     NFIRIFRWGY PGKNRKIDLY YTLKDVESIR VEILQGFDSQ RTIFLKLKGN REIPITGIGQ
     PLTLQEIEKQ ASELANFLQV SLEGL