ID   RF3_SYMTH               Reviewed;         528 AA.
AC   Q67MT5;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   27-JUN-2006, sequence version 2.
DT   03-AUG-2022, entry version 106.
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=STH2023;
OS   Symbiobacterium thermophilum (strain T / IAM 14863).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Symbiobacteriaceae;
OC   Symbiobacterium.
OX   NCBI_TaxID=292459;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=T / IAM 14863;
RX   PubMed=15383646; DOI=10.1093/nar/gkh830;
RA   Ueda K., Yamashita A., Ishikawa J., Shimada M., Watsuji T., Morimura K.,
RA   Ikeda H., Hattori M., Beppu T.;
RT   "Genome sequence of Symbiobacterium thermophilum, an uncultivable bacterium
RT   that depends on microbial commensalism.";
RL   Nucleic Acids Res. 32:4937-4944(2004).
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}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=BAD41008.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AP006840; BAD41008.1; ALT_INIT; Genomic_DNA.
DR   AlphaFoldDB; Q67MT5; -.
DR   SMR; Q67MT5; -.
DR   STRING; 292459.STH2023; -.
DR   EnsemblBacteria; BAD41008; BAD41008; STH2023.
DR   KEGG; sth:STH2023; -.
DR   eggNOG; COG4108; Bacteria.
DR   HOGENOM; CLU_002794_2_1_9; -.
DR   OMA; GFVFKIH; -.
DR   Proteomes; UP000000417; 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; IPR004161; EFTu-like_2.
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; PF03144; GTP_EFTU_D2; 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..528
FT                   /note="Peptide chain release factor 3"
FT                   /id="PRO_0000242219"
FT   DOMAIN          9..280
FT                   /note="tr-type G"
FT   BINDING         18..25
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00072"
FT   BINDING         86..90
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00072"
FT   BINDING         140..143
FT                   /ligand="GTP"
FT                   /ligand_id="ChEBI:CHEBI:37565"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00072"
SQ   SEQUENCE   528 AA;  59895 MW;  70CE1023AC0B124B CRC64;
     MDSLADQIRR RRTFAIISHP DAGKTTLTEK LLLYGGAIRL AGAVKGRKAA RAATSDWMEI
     EKQRGISVTT SVMQFEYGGC MVNILDTPGH QDFSEDTYRT LEAADSAVML IDAAKGVEPQ
     TIKLFQVCRM RGIPIFTFVN KLDREGKDPF ALMQEIEDVL GMRTCPMNWP VGMGSTFKGV
     YDRQKGHVEL FDNRDHGQTK ARVETTGVDD PALSAVLGED LHRRLVEEIE LLDVAGDPWD
     FDRFRRGDLS PLFWGSALTN FGVQSFLEYF LKLAPAPAPR LAGDRLVDPE EPRFSAFVFK
     IQANMNPAHR DRIAFMRIVS GRFERGMDVQ HVRLGKKVRL SQPQQFMAQD RQIVEEAYAG
     DIIGVFDPGI FRIGDTLCTG EPVAFEGIPS FSPEHFARVR FKDAMKSKHF RKGLEELTEE
     GAIQVFYATQ PGHPDPILGA VGELQFEVFQ HRMRHEYGVE VILDRLPYEV ARWVEGEGYQ
     PRRFWGTDHM AVTDRDGRNV LLFRNEWTMR YVVEQNPGLI FRATAQAR