ID   YCF4_PINTH              Reviewed;         184 AA.
AC   P41620;
DT   01-NOV-1995, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1995, sequence version 1.
DT   25-MAY-2022, entry version 73.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
OS   Pinus thunbergii (Japanese black pine) (Pinus thunbergiana).
OG   Plastid; Chloroplast.
OC   Eukaryota; Viridiplantae; Streptophyta; Embryophyta; Tracheophyta;
OC   Spermatophyta; Pinopsida; Pinidae; Conifers I; Pinales; Pinaceae; Pinus;
OC   Pinus subgen. Pinus.
OX   NCBI_TaxID=3350;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=7937893; DOI=10.1073/pnas.91.21.9794;
RA   Wakasugi T., Tsudzuki J., Ito S., Nakashima K., Tsudzuki T., Sugiura M.;
RT   "Loss of all ndh genes as determined by sequencing the entire chloroplast
RT   genome of the black pine Pinus thunbergii.";
RL   Proc. Natl. Acad. Sci. U.S.A. 91:9794-9798(1994).
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; D17510; BAA04362.1; -; Genomic_DNA.
DR   PIR; T07484; T07484.
DR   RefSeq; NP_042405.1; NC_001631.1.
DR   AlphaFoldDB; P41620; -.
DR   SMR; P41620; -.
DR   PRIDE; P41620; -.
DR   GeneID; 1457659; -.
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_0000217623"
FT   TRANSMEM        21..43
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        58..78
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   184 AA;  21358 MW;  81727C84F7000438 CRC64;
     MNRRSKWLWI EPITGSRKRS NFFWACILFL GSLGFFLVGI SSYFGENLIP LLSSQQILFV
     PQGIVMCFYG IAGLFISSYL WCTILFNVGS GYNKFDKKKG IVCLFRWGFP GINRRIFPRF
     LMKDIQMIKM EIQEGISPRR VLYMEIKGRQ DIPLTRTGDN VNLREIEQKA AESARFLRVS
     IEGF