ID   YCF4_CYAM1              Reviewed;         164 AA.
AC   Q85FQ1;
DT   18-MAR-2008, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2003, sequence version 1.
DT   03-AUG-2022, entry version 78.
DE   RecName: Full=Photosystem I assembly protein Ycf4;
GN   Name=ycf4;
OS   Cyanidioschyzon merolae (strain NIES-3377 / 10D) (Unicellular red alga).
OG   Plastid; Chloroplast.
OC   Eukaryota; Rhodophyta; Bangiophyceae; Cyanidiales; Cyanidiaceae;
OC   Cyanidioschyzon.
OX   NCBI_TaxID=280699;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NIES-3377 / 10D;
RX   PubMed=12755171; DOI=10.1093/dnares/10.2.67;
RA   Ohta N., Matsuzaki M., Misumi O., Miyagishima S.-Y., Nozaki H., Tanaka K.,
RA   Shin-i T., Kohara Y., Kuroiwa T.;
RT   "Complete sequence and analysis of the plastid genome of the unicellular
RT   red alga Cyanidioschyzon merolae.";
RL   DNA Res. 10:67-77(2003).
CC   -!- FUNCTION: Seems to be required for the assembly of the photosystem I
CC       complex. {ECO:0000250}.
CC   -!- SUBCELLULAR LOCATION: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000250}; Multi-pass membrane protein {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the Ycf4 family. {ECO:0000305}.
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DR   EMBL; AB002583; BAC76294.1; -; Genomic_DNA.
DR   RefSeq; NP_849132.1; NC_004799.1.
DR   AlphaFoldDB; Q85FQ1; -.
DR   STRING; 45157.CMV233CT; -.
DR   EnsemblPlants; CMV233CT; CMV233CT; CMV233C.
DR   GeneID; 845079; -.
DR   Gramene; CMV233CT; CMV233CT; CMV233C.
DR   KEGG; cme:CymeCp200; -.
DR   eggNOG; ENOG502QWGG; Eukaryota.
DR   HOGENOM; CLU_095465_0_0_1; -.
DR   Proteomes; UP000007014; Chloroplast.
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-KW.
DR   InterPro; IPR003359; PSI_Ycf4_assembly.
DR   Pfam; PF02392; Ycf4; 1.
PE   3: Inferred from homology;
KW   Chloroplast; Membrane; Photosynthesis; Plastid; Reference proteome;
KW   Thylakoid; Transmembrane; Transmembrane helix.
FT   CHAIN           1..164
FT                   /note="Photosystem I assembly protein Ycf4"
FT                   /id="PRO_0000326025"
FT   TRANSMEM        14..34
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
FT   TRANSMEM        45..65
FT                   /note="Helical"
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   164 AA;  18457 MW;  A0BD9E359788E14D CRC64;
     MSIQRESIIG SRRWSNMIWC AILVTAGSGF WFNGMQSELA LQGAIMCFYG SVAVTLSVYL
     FLTIWWDVGG GYNEYDTENK SITIWRRGFG NKTIFLKYTR DQMQALKVVV KDGLNPKREI
     YLCTTTGAQI PLTAVGEPMP LAELEQKATQ LAQWLNLSLV GMRA