ID   YCF4_TOBAC              Reviewed;         184 AA.
AC   P12207;
DT   01-OCT-1989, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-1989, sequence version 1.
DT   25-MAY-2022, entry version 84.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
OS   Nicotiana tabacum (Common tobacco).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Magnoliopsida; eudicotyledons; Gunneridae; Pentapetalae;
OC   asterids; lamiids; Solanales; Solanaceae; Nicotianoideae; Nicotianeae;
OC   Nicotiana.
OX   NCBI_TaxID=4097;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=cv. Bright Yellow 4;
RX   PubMed=16453699; DOI=10.1002/j.1460-2075.1986.tb04464.x;
RA   Shinozaki K., Ohme M., Tanaka M., Wakasugi T., Hayashida N.,
RA   Matsubayashi T., Zaita N., Chunwongse J., Obokata J.,
RA   Yamaguchi-Shinozaki K., Ohto C., Torazawa K., Meng B.-Y., Sugita M.,
RA   Deno H., Kamogashira T., Yamada K., Kusuda J., Takaiwa F., Kato A.,
RA   Tohdoh N., Shimada H., Sugiura M.;
RT   "The complete nucleotide sequence of the tobacco chloroplast genome: its
RT   gene organization and expression.";
RL   EMBO J. 5:2043-2049(1986).
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; Z00044; CAA77363.1; -; Genomic_DNA.
DR   PIR; A05197; A05197.
DR   RefSeq; NP_054510.1; NC_001879.2.
DR   AlphaFoldDB; P12207; -.
DR   GeneID; 1466297; -.
DR   KEGG; nta:1466297; -.
DR   OMA; RFSNYWW; -.
DR   OrthoDB; 1340066at2759; -.
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_0000217630"
FT   TRANSMEM        21..43
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        58..80
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   184 AA;  21382 MW;  5F97E96086A6EE03 CRC64;
     MTWRSEHIWI ELITGSRKIS NFCWAFILFL GSLGFLLVGT SSYLGRNLIS FFPPQQIIFF
     PQGLVMSFYG IAGLFISSYL WCTISWNVGS GYDRFDRKEG IVCIFRWGFP GKNRRIFLRF
     LIKDIQSVRI EVKEGISARR VLYMDIRGQG SIPLTRTDEN LTPREIEQKA AELAYFLRVP
     IEVF