ID   YCF3_GUITH              Reviewed;         172 AA.
AC   O78490;
DT   15-DEC-1998, integrated into UniProtKB/Swiss-Prot.
DT   01-NOV-1998, sequence version 1.
DT   25-MAY-2022, entry version 99.
DE   RecName: Full=Photosystem I assembly protein Ycf3 {ECO:0000255|HAMAP-Rule:MF_00439};
GN   Name=ycf3 {ECO:0000255|HAMAP-Rule:MF_00439};
OS   Guillardia theta (Cryptophyte) (Cryptomonas phi).
OG   Plastid; Chloroplast.
OC   Eukaryota; Cryptophyceae; Pyrenomonadales; Geminigeraceae; Guillardia.
OX   NCBI_TaxID=55529;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=9929392; DOI=10.1007/pl00006462;
RA   Douglas S.E., Penny S.L.;
RT   "The plastid genome of the cryptophyte alga, Guillardia theta: complete
RT   sequence and conserved synteny groups confirm its common ancestry with red
RT   algae.";
RL   J. Mol. Evol. 48:236-244(1999).
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: Plastid, chloroplast thylakoid membrane
CC       {ECO:0000255|HAMAP-Rule:MF_00439}; Peripheral membrane protein
CC       {ECO:0000255|HAMAP-Rule:MF_00439}.
CC   -!- SIMILARITY: Belongs to the Ycf3 family. {ECO:0000255|HAMAP-
CC       Rule:MF_00439}.
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DR   EMBL; AF041468; AAC35681.1; -; Genomic_DNA.
DR   RefSeq; NP_050747.1; NC_000926.1.
DR   AlphaFoldDB; O78490; -.
DR   SMR; O78490; -.
DR   GeneID; 857052; -.
DR   HOGENOM; CLU_141248_0_0_1; -.
DR   OMA; VYYRDGM; -.
DR   GO; GO:0009535; C:chloroplast 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   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   Chloroplast; Membrane; Photosynthesis; Plastid; Repeat; Thylakoid;
KW   TPR repeat.
FT   CHAIN           1..172
FT                   /note="Photosystem I assembly protein Ycf3"
FT                   /id="PRO_0000217804"
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   172 AA;  19934 MW;  64A00A79F93CA02E CRC64;
     MPRFQKNDNF IDKTFTVLAD LVLKILPATK QEKEAFSYYR DGMSAQSEGE YAEALENYYE
     ALRLEEDPYD RSYILYNIGL IYASNGEYVK ALEYYHQALD LNSQLPAALN NIAVIYHYQG
     VKASEKKELD LARTLFDKAA EYWKQAIRLS PNNYIEAQNW LKTTGRSDTL TI