ID   YCF4_CHLVU              Reviewed;         183 AA.
AC   P56312;
DT   15-JUL-1998, integrated into UniProtKB/Swiss-Prot.
DT   15-JUL-1998, sequence version 1.
DT   25-MAY-2022, entry version 67.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
OS   Chlorella vulgaris (Green alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Chlorophyta; core chlorophytes; Trebouxiophyceae;
OC   Chlorellales; Chlorellaceae; Chlorella clade; Chlorella.
OX   NCBI_TaxID=3077;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=IAM C-27 / Tamiya;
RX   PubMed=9159184; DOI=10.1073/pnas.94.11.5967;
RA   Wakasugi T., Nagai T., Kapoor M., Sugita M., Ito M., Ito S., Tsudzuki J.,
RA   Nakashima K., Tsudzuki T., Suzuki Y., Hamada A., Ohta T., Inamura A.,
RA   Yoshinaga K., Sugiura M.;
RT   "Complete nucleotide sequence of the chloroplast genome from the green alga
RT   Chlorella vulgaris: the existence of genes possibly involved in chloroplast
RT   division.";
RL   Proc. Natl. Acad. Sci. U.S.A. 94:5967-5972(1997).
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; AB001684; BAA57888.1; -; Genomic_DNA.
DR   PIR; T07241; T07241.
DR   RefSeq; NP_045813.1; NC_001865.1.
DR   AlphaFoldDB; P56312; -.
DR   GeneID; 809185; -.
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_0000217602"
FT   TRANSMEM        21..43
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        63..85
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   183 AA;  20898 MW;  3FDEF4D32D31F6EE CRC64;
     MTAQELSIRY EVPGARRFGN YIWGSLMCLG GLGFLTIGIS SYLDFPILSL VKSSNIQFFP
     QGLVMCFYGV LGFLLGVYIW LLILWNLGEG FNEFNLETGY VRIFRWGFPG KNRRIDLQYP
     IQEIQSIRVE IQEGINPKRI IYLKLRGNRE IPLTRAGQPL SIQQIETQAA ELAKFLQVSL
     EGI