ID   YCF4_STIHE              Reviewed;         183 AA.
AC   Q06SF8;
DT   06-FEB-2007, integrated into UniProtKB/Swiss-Prot.
DT   31-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 41.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
OS   Stigeoclonium helveticum (Green alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Chlorophyceae;
OC   OCC clade; Chaetophorales; Chaetophoraceae; Stigeoclonium.
OX   NCBI_TaxID=55999;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=UTEX 441;
RX   PubMed=16944205; DOI=10.1007/s00438-006-0156-2;
RA   Belanger A.-S., Brouard J.-S., Charlebois P., Otis C., Lemieux C.,
RA   Turmel M.;
RT   "Distinctive architecture of the chloroplast genome in the chlorophycean
RT   green alga Stigeoclonium helveticum.";
RL   Mol. Genet. Genomics 276:464-477(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; DQ630521; ABF60205.1; -; Genomic_DNA.
DR   RefSeq; YP_764408.1; NC_008372.1.
DR   AlphaFoldDB; Q06SF8; -.
DR   GeneID; 4308436; -.
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..183
FT                   /note="Photosystem I assembly protein Ycf4"
FT                   /id="PRO_0000275676"
FT   TRANSMEM        23..43
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        64..84
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   183 AA;  20809 MW;  E95977E9F196E54D CRC64;
     MNSENLIRRY VITGSRRLSN YWWASVVFLG AIGFLFTGLS SYFGQNLLPF LQVQNITFFP
     QGLVMSFYGI LGLLLSIYLW LTIIWNVGGG FNEFNKKAGA IRIFRWGFPG KTRCIDISYS
     LKEVEAIKVD FKQGVNPQRT LYLRVKGKRE IPLSQIGQPL TVEEVEKQAA ELAKFLQVSV
     EGL