ID   YCF4_THEVB              Reviewed;         192 AA.
AC   Q8DJ41;
DT   30-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 89.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437}; OrderedLocusNames=tll1388;
OS   Thermosynechococcus vestitus (strain NIES-2133 / IAM M-273 / BP-1).
OC   Bacteria; Cyanobacteria; Pseudanabaenales; Thermosynechococcaceae;
OC   Thermosynechococcus.
OX   NCBI_TaxID=197221;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NIES-2133 / IAM M-273 / BP-1;
RX   PubMed=12240834; DOI=10.1093/dnares/9.4.123;
RA   Nakamura Y., Kaneko T., Sato S., Ikeuchi M., Katoh H., Sasamoto S.,
RA   Watanabe A., Iriguchi M., Kawashima K., Kimura T., Kishida Y., Kiyokawa C.,
RA   Kohara M., Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takeuchi C., Yamada M., Tabata S.;
RT   "Complete genome structure of the thermophilic cyanobacterium
RT   Thermosynechococcus elongatus BP-1.";
RL   DNA Res. 9:123-130(2002).
CC   -!- FUNCTION: Seems to be required for the assembly of the photosystem I
CC       complex. {ECO:0000255|HAMAP-Rule:MF_00437}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00437}; Multi-pass membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00437}.
CC   -!- SIMILARITY: Belongs to the Ycf4 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00437}.
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DR   EMBL; BA000039; BAC08940.1; -; Genomic_DNA.
DR   RefSeq; NP_682178.1; NC_004113.1.
DR   RefSeq; WP_011057228.1; NC_004113.1.
DR   AlphaFoldDB; Q8DJ41; -.
DR   STRING; 197221.22295112; -.
DR   EnsemblBacteria; BAC08940; BAC08940; BAC08940.
DR   KEGG; tel:tll1388; -.
DR   PATRIC; fig|197221.4.peg.1460; -.
DR   eggNOG; ENOG502Z7YX; Bacteria.
DR   OMA; RFSNYWW; -.
DR   OrthoDB; 1558391at2; -.
DR   Proteomes; UP000000440; Chromosome.
DR   GO; GO:0016021; C:integral component of membrane; IEA:UniProtKB-KW.
DR   GO; GO:0009522; C:photosystem I; IEA:InterPro.
DR   GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
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   Membrane; Photosynthesis; Reference proteome; Thylakoid; Transmembrane;
KW   Transmembrane helix.
FT   CHAIN           1..192
FT                   /note="Photosystem I assembly protein Ycf4"
FT                   /id="PRO_0000217637"
FT   TRANSMEM        30..52
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        72..94
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   192 AA;  20885 MW;  339E53966A9BB557 CRC64;
     MTNSPITEPS PRQESVLRYP VLGSRRPSNY FWATAVSIGG LGFFLAGLSS YLHRNLLPIG
     NPIDLVFIPQ GIAIGFYGVA ALLLATYLWL AIAWDVGGGF NEFNKETGFV RIFRWGFPGK
     NRQIEVSCPI SDVQAVKIVI KEGLNPKRSL YLKIKGRGEV PLTRVGAPLP LAELETQGAT
     IASFLGVPVE GL