ID   YCF4_CYCTA              Reviewed;         184 AA.
AC   A6H5I8;
DT   18-MAR-2008, integrated into UniProtKB/Swiss-Prot.
DT   24-JUL-2007, sequence version 1.
DT   25-MAY-2022, entry version 38.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
OS   Cycas taitungensis (Prince sago) (Cycas taiwaniana).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Cycadidae; Cycadales; Cycadaceae; Cycas.
OX   NCBI_TaxID=54799;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=17383970; DOI=10.1093/molbev/msm059;
RA   Wu C.-S., Wang Y.-N., Liu S.-M., Chaw S.-M.;
RT   "Chloroplast genome (cpDNA) of Cycas taitungensis and 56 cp protein-coding
RT   genes of Gnetum parvifolium: insights into cpDNA evolution and phylogeny of
RT   extant seed plants.";
RL   Mol. Biol. Evol. 24:1366-1379(2007).
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; AP009339; BAF64954.1; -; Genomic_DNA.
DR   RefSeq; YP_001312213.1; NC_009618.1.
DR   AlphaFoldDB; A6H5I8; -.
DR   GeneID; 5309526; -.
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..184
FT                   /note="Photosystem I assembly protein Ycf4"
FT                   /id="PRO_0000326007"
FT   TRANSMEM        25..45
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        57..77
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   184 AA;  21450 MW;  0A8F7D3933885A42 CRC64;
     MNWRSEWLWI EPITGSRRTS NFCRACILFF GSLGFFLVGI SSYLGKNLIP VLSSQQILFV
     PQGIVMCFYG IAGLFISSYL WCTILWNVGS GYDKFDEEEG IVCLFRWGFP GRNRRTFLRF
     LMKDIQAIKM EVQEGLYPRR VLYMEIKGQR DIPLARTGEN LTLREMEQKA AELARFLRIS
     IEVF