ID   YCF4_SYNS9              Reviewed;         178 AA.
AC   Q3AZ40;
DT   18-MAR-2008, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 85.
DE   RecName: Full=Photosystem I assembly protein Ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   Name=ycf4 {ECO:0000255|HAMAP-Rule:MF_00437};
GN   OrderedLocusNames=Syncc9902_0669;
OS   Synechococcus sp. (strain CC9902).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=316279;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CC9902;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Martinez M., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of Synechococcus sp. CC9902.";
RL   Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
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; CP000097; ABB25637.1; -; Genomic_DNA.
DR   RefSeq; WP_011359481.1; NC_007513.1.
DR   AlphaFoldDB; Q3AZ40; -.
DR   STRING; 316279.Syncc9902_0669; -.
DR   EnsemblBacteria; ABB25637; ABB25637; Syncc9902_0669.
DR   KEGG; sye:Syncc9902_0669; -.
DR   eggNOG; ENOG502Z7YX; Bacteria.
DR   HOGENOM; CLU_095465_0_0_3; -.
DR   OMA; RFSNYWW; -.
DR   OrthoDB; 1558391at2; -.
DR   Proteomes; UP000002712; 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..178
FT                   /note="Photosystem I assembly protein Ycf4"
FT                   /id="PRO_0000325985"
FT   TRANSMEM        19..39
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
FT   TRANSMEM        61..81
FT                   /note="Helical"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00437"
SQ   SEQUENCE   178 AA;  19165 MW;  DBF7FD113CB7AC9F CRC64;
     MSAAVLEQSV LGSRRLSNFL VAAAVSVGGV GFLLASLSSY LGQDLLPFGH PAALIFVPQG
     LVMGLYSIAA ALLASYLWYV IAVDVGSGSN RFDKESGVVV ISRRGFRRPV CVEFPLKDVK
     AVKVEVRDGF NARRRVSLRL QGRRDLPLTR VGEPLPLAQL EQEGAELARF LGVNLEGL