ID   RF3_NOSS1               Reviewed;         540 AA.
AC   Q8YP23;
DT   19-OCT-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2002, sequence version 1.
DT   03-AUG-2022, entry version 109.
DE   RecName: Full=Peptide chain release factor 3 {ECO:0000255|HAMAP-Rule:MF_00072};
DE            Short=RF-3 {ECO:0000255|HAMAP-Rule:MF_00072};
GN   Name=prfC {ECO:0000255|HAMAP-Rule:MF_00072}; OrderedLocusNames=all4379;
OS   Nostoc sp. (strain PCC 7120 / SAG 25.82 / UTEX 2576).
OC   Bacteria; Cyanobacteria; Nostocales; Nostocaceae; Nostoc.
OX   NCBI_TaxID=103690;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7120 / SAG 25.82 / UTEX 2576;
RX   PubMed=11759840; DOI=10.1093/dnares/8.5.205;
RA   Kaneko T., Nakamura Y., Wolk C.P., Kuritz T., Sasamoto S., Watanabe A.,
RA   Iriguchi M., Ishikawa A., Kawashima K., Kimura T., Kishida Y., Kohara M.,
RA   Matsumoto M., Matsuno A., Muraki A., Nakazaki N., Shimpo S., Sugimoto M.,
RA   Takazawa M., Yamada M., Yasuda M., Tabata S.;
RT   "Complete genomic sequence of the filamentous nitrogen-fixing
RT   cyanobacterium Anabaena sp. strain PCC 7120.";
RL   DNA Res. 8:205-213(2001).
CC   -!- FUNCTION: Increases the formation of ribosomal termination complexes
CC       and stimulates activities of RF-1 and RF-2. It binds guanine
CC       nucleotides and has strong preference for UGA stop codons. It may
CC       interact directly with the ribosome. The stimulation of RF-1 and RF-2
CC       is significantly reduced by GTP and GDP, but not by GMP.
CC       {ECO:0000255|HAMAP-Rule:MF_00072}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00072}.
CC   -!- SIMILARITY: Belongs to the TRAFAC class translation factor GTPase
CC       superfamily. Classic translation factor GTPase family. PrfC subfamily.
CC       {ECO:0000255|HAMAP-Rule:MF_00072}.
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DR   EMBL; BA000019; BAB76078.1; -; Genomic_DNA.
DR   PIR; AC2353; AC2353.
DR   RefSeq; WP_010998516.1; NZ_RSCN01000051.1.
DR   AlphaFoldDB; Q8YP23; -.
DR   SMR; Q8YP23; -.
DR   STRING; 103690.17133515; -.
DR   PRIDE; Q8YP23; -.
DR   EnsemblBacteria; BAB76078; BAB76078; BAB76078.
DR   KEGG; ana:all4379; -.
DR   eggNOG; COG4108; Bacteria.
DR   OMA; GFVFKIH; -.
DR   OrthoDB; 164090at2; -.
DR   Proteomes; UP000002483; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0005525; F:GTP binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0003924; F:GTPase activity; IEA:InterPro.
DR   GO; GO:0016149; F:translation release factor activity, codon specific; IEA:UniProtKB-UniRule.
DR   GO; GO:0006449; P:regulation of translational termination; IEA:UniProtKB-UniRule.
DR   CDD; cd04169; RF3; 1.
DR   Gene3D; 3.30.70.3280; -; 1.
DR   Gene3D; 3.40.50.300; -; 1.
DR   HAMAP; MF_00072; Rel_fac_3; 1.
DR   InterPro; IPR035647; EFG_III/V.
DR   InterPro; IPR031157; G_TR_CS.
DR   InterPro; IPR027417; P-loop_NTPase.
DR   InterPro; IPR004548; PrfC.
DR   InterPro; IPR032090; RF3_C.
DR   InterPro; IPR038467; RF3_dom_3_sf.
DR   InterPro; IPR041732; RF3_GTP-bd.
DR   InterPro; IPR005225; Small_GTP-bd_dom.
DR   InterPro; IPR000795; T_Tr_GTP-bd_dom.
DR   InterPro; IPR009000; Transl_B-barrel_sf.
DR   PANTHER; PTHR43556; PTHR43556; 1.
DR   Pfam; PF00009; GTP_EFTU; 1.
DR   Pfam; PF16658; RF3_C; 1.
DR   PRINTS; PR00315; ELONGATNFCT.
DR   SUPFAM; SSF50447; SSF50447; 1.
DR   SUPFAM; SSF52540; SSF52540; 1.
DR   SUPFAM; SSF54980; SSF54980; 1.
DR   TIGRFAMs; TIGR00503; prfC; 1.
DR   TIGRFAMs; TIGR00231; small_GTP; 1.
DR   PROSITE; PS00301; G_TR_1; 1.
DR   PROSITE; PS51722; G_TR_2; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; GTP-binding; Nucleotide-binding; Protein biosynthesis;
KW   Reference proteome.
FT   CHAIN           1..540
FT                   /note="Peptide chain release factor 3"
FT                   /id="PRO_0000210928"
FT   DOMAIN          14..283
FT                   /note="tr-type G"
FT   BINDING         23..30
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00072"
FT   BINDING         91..95
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00072"
FT   BINDING         145..148
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00072"
SQ   SEQUENCE   540 AA;  61271 MW;  E47F480DF4E19695 CRC64;
     MSTEIQTELH QAVELRRNFA IISHPDAGKT TLTEKLLLYG GAIHEAGAVK ARRAQRKATS
     DWMAMEQQRG ISITSTVLQF EYQNCQINLL DTPGHQDFSE DTYRTLAAAD NAVMLIDVAK
     GLEPQTRKLF EVCKLRGLPI FTFINKLDRP GREPLELLDE IEQELGLQTY AVNWPIGMGD
     RFKGVFDRHK QQIHLFERSA HGSKEARDTT VELGDPRIEE LLEEDLYYQL KNDLELLEGV
     GPELDLDLVH QGKMTPVFFG SAMTNFGVEL FLKYFLDYAL KPGVHISSVG EVPPTYPEFS
     GFVFKLQANM DPKHRDRVAF IRVCTGKFEK DMTVNHARTG KIVRLSRPQK LFAQERESID
     VAYPGDVIGL NNPGVFAIGD TIYTGQKLEY EGIPYFSPEL FATLRNPNPS KFKQFQKGIS
     ELREEGAVQI MYSNDEAKRD PIMAAVGQLQ FEVVQFRLQN EYGVETILEL LPYSVARWVE
     GGWEALNKVG RIFNTTTVKD SMNRPVLLFR NEWNCQQLQG DHPELKLSAI APVFSSQTVE