ID   YCF3_SYNE7              Reviewed;         173 AA.
AC   Q31KR8;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   06-DEC-2005, sequence version 1.
DT   03-AUG-2022, entry version 96.
DE   RecName: Full=Photosystem I assembly protein Ycf3 {ECO:0000255|HAMAP-Rule:MF_00439};
GN   Name=ycf3 {ECO:0000255|HAMAP-Rule:MF_00439};
GN   OrderedLocusNames=Synpcc7942_2321;
OS   Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans
OS   R2).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=1140;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7942 / FACHB-805;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Schmutz J., Larimer F., Land M.,
RA   Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
RL   Submitted (AUG-2005) to the EMBL/GenBank/DDBJ databases.
CC   -!- FUNCTION: Essential for the assembly of the photosystem I (PSI)
CC       complex. May act as a chaperone-like factor to guide the assembly of
CC       the PSI subunits. {ECO:0000255|HAMAP-Rule:MF_00439}.
CC   -!- SUBCELLULAR LOCATION: Cellular thylakoid membrane {ECO:0000255|HAMAP-
CC       Rule:MF_00439}; Peripheral membrane protein {ECO:0000255|HAMAP-
CC       Rule:MF_00439}.
CC   -!- SIMILARITY: Belongs to the Ycf3 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00439}.
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DR   EMBL; CP000100; ABB58351.1; -; Genomic_DNA.
DR   RefSeq; WP_011244091.1; NC_007604.1.
DR   AlphaFoldDB; Q31KR8; -.
DR   SMR; Q31KR8; -.
DR   STRING; 1140.Synpcc7942_2321; -.
DR   PRIDE; Q31KR8; -.
DR   EnsemblBacteria; ABB58351; ABB58351; Synpcc7942_2321.
DR   KEGG; syf:Synpcc7942_2321; -.
DR   eggNOG; COG0457; Bacteria.
DR   HOGENOM; CLU_141248_0_0_3; -.
DR   OMA; VYYRDGM; -.
DR   OrthoDB; 1382732at2; -.
DR   BioCyc; SYNEL:SYNPCC7942_2321-MON; -.
DR   GO; GO:0031676; C:plasma membrane-derived thylakoid membrane; IEA:UniProtKB-SubCell.
DR   GO; GO:0015979; P:photosynthesis; IEA:UniProtKB-UniRule.
DR   Gene3D; 1.25.40.10; -; 1.
DR   HAMAP; MF_00439; Ycf3; 1.
DR   InterPro; IPR022818; PSI_Ycf3_assembly.
DR   InterPro; IPR011990; TPR-like_helical_dom_sf.
DR   InterPro; IPR019734; TPR_repeat.
DR   SMART; SM00028; TPR; 3.
DR   SUPFAM; SSF48452; SSF48452; 1.
DR   PROSITE; PS50005; TPR; 3.
DR   PROSITE; PS50293; TPR_REGION; 1.
PE   3: Inferred from homology;
KW   Membrane; Photosynthesis; Repeat; Thylakoid; TPR repeat.
FT   CHAIN           1..173
FT                   /note="Photosystem I assembly protein Ycf3"
FT                   /id="PRO_1000025971"
FT   REPEAT          35..68
FT                   /note="TPR 1"
FT   REPEAT          72..105
FT                   /note="TPR 2"
FT   REPEAT          120..153
FT                   /note="TPR 3"
SQ   SEQUENCE   173 AA;  19872 MW;  659BC1943273678D CRC64;
     MPRTQRNDNF IDKSFTVMAD LILKVLPTNK KSKEAFAYYR DGMSAQADGE YAEALENYQE
     ALTLEEDPID RSFILYNIAL VHTSNGDHQT ALDHYLQALD LNPKMPQALN NIAVIHHFLG
     QRSEEAGNDD EAERHYDQAA EYWTQAIRLA PNNYIEAQNW LKTTGRSKVD VYF