ID   YCF3_PROMM              Reviewed;         173 AA.
AC   Q7V4G0;
DT   16-AUG-2004, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2003, sequence version 1.
DT   25-MAY-2022, entry version 102.
DE   RecName: Full=Photosystem I assembly protein Ycf3 {ECO:0000255|HAMAP-Rule:MF_00439};
GN   Name=ycf3 {ECO:0000255|HAMAP-Rule:MF_00439}; OrderedLocusNames=PMT_1992;
OS   Prochlorococcus marinus (strain MIT 9313).
OC   Bacteria; Cyanobacteria; Synechococcales; Prochlorococcaceae;
OC   Prochlorococcus.
OX   NCBI_TaxID=74547;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MIT 9313;
RX   PubMed=12917642; DOI=10.1038/nature01947;
RA   Rocap G., Larimer F.W., Lamerdin J.E., Malfatti S., Chain P., Ahlgren N.A.,
RA   Arellano A., Coleman M., Hauser L., Hess W.R., Johnson Z.I., Land M.L.,
RA   Lindell D., Post A.F., Regala W., Shah M., Shaw S.L., Steglich C.,
RA   Sullivan M.B., Ting C.S., Tolonen A., Webb E.A., Zinser E.R.,
RA   Chisholm S.W.;
RT   "Genome divergence in two Prochlorococcus ecotypes reflects oceanic niche
RT   differentiation.";
RL   Nature 424:1042-1047(2003).
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; BX548175; CAE22166.1; -; Genomic_DNA.
DR   RefSeq; WP_011131357.1; NC_005071.1.
DR   AlphaFoldDB; Q7V4G0; -.
DR   SMR; Q7V4G0; -.
DR   STRING; 74547.PMT_1992; -.
DR   EnsemblBacteria; CAE22166; CAE22166; PMT_1992.
DR   KEGG; pmt:PMT_1992; -.
DR   eggNOG; COG3063; Bacteria.
DR   HOGENOM; CLU_141248_0_0_3; -.
DR   OMA; VYYRDGM; -.
DR   OrthoDB; 1382732at2; -.
DR   Proteomes; UP000001423; 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; IPR019734; TPR_repeat.
DR   SMART; SM00028; TPR; 2.
DR   SUPFAM; SSF48452; SSF48452; 1.
DR   PROSITE; PS50005; TPR; 2.
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_0000217830"
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;  19896 MW;  E89D714C3CDC5CB8 CRC64;
     MPRTQNKDNF IDKTFTVMAD LIVKMMPIND KAKRAYVYYR DGLSAQNAGD YAEALENYEE
     SLKLEESPFD RSETLKNMAI IYMSNGDEDL ALDTYQRALD QNSNQPSCLK NMGLIYEKRG
     RTAQEAGLQD EADRLFDRAA DVWTQAVRLY PGGYLDIENW LKTTGRSNID VYF