ID   YCF3_SYNP2              Reviewed;         173 AA.
AC   B1XNN2;
DT   14-APR-2009, integrated into UniProtKB/Swiss-Prot.
DT   20-MAY-2008, sequence version 1.
DT   25-MAY-2022, entry version 86.
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=SYNPCC7002_A1566;
OS   Synechococcus sp. (strain ATCC 27264 / PCC 7002 / PR-6) (Agmenellum
OS   quadruplicatum).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=32049;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27264 / PCC 7002 / PR-6;
RA   Li T., Zhao J., Zhao C., Liu Z., Zhao F., Marquardt J., Nomura C.T.,
RA   Persson S., Detter J.C., Richardson P.M., Lanz C., Schuster S.C., Wang J.,
RA   Li S., Huang X., Cai T., Yu Z., Luo J., Zhao J., Bryant D.A.;
RT   "Complete sequence of Synechococcus sp. PCC 7002.";
RL   Submitted (FEB-2008) 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; CP000951; ACA99557.1; -; Genomic_DNA.
DR   RefSeq; WP_012307180.1; NC_010475.1.
DR   AlphaFoldDB; B1XNN2; -.
DR   SMR; B1XNN2; -.
DR   STRING; 32049.SYNPCC7002_A1566; -.
DR   EnsemblBacteria; ACA99557; ACA99557; SYNPCC7002_A1566.
DR   KEGG; syp:SYNPCC7002_A1566; -.
DR   eggNOG; COG0457; Bacteria.
DR   HOGENOM; CLU_141248_0_0_3; -.
DR   OMA; VYYRDGM; -.
DR   Proteomes; UP000001688; Chromosome.
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; IPR001440; TPR_1.
DR   InterPro; IPR019734; TPR_repeat.
DR   Pfam; PF00515; TPR_1; 1.
DR   Pfam; PF13176; TPR_7; 1.
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; Reference proteome; Repeat; Thylakoid;
KW   TPR repeat.
FT   CHAIN           1..173
FT                   /note="Photosystem I assembly protein Ycf3"
FT                   /id="PRO_1000200326"
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;  20031 MW;  D02A6B8BF5D9F68A CRC64;
     MPRTQRNDNF IDKSFTVMAD IILKILPTNN RSKEAFAYYR DGMSAQADGE YSEALENYEE
     ALRLEDDPND RSYILYNMGL IYASNGDHHK ALELYHEAID LNPRMPQALN NIAVVYHYQG
     EKAKQSGNED ESEALFDKAA EYWKQAIRIA PNNYIEAQNW LKTTGRSEMD VFF