ID   RF3_METCA               Reviewed;         526 AA.
AC   Q606M6;
DT   27-JUN-2006, integrated into UniProtKB/Swiss-Prot.
DT   23-NOV-2004, sequence version 1.
DT   03-AUG-2022, entry version 108.
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=MCA1990;
OS   Methylococcus capsulatus (strain ATCC 33009 / NCIMB 11132 / Bath).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Methylococcales;
OC   Methylococcaceae; Methylococcus.
OX   NCBI_TaxID=243233;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 33009 / NCIMB 11132 / Bath;
RX   PubMed=15383840; DOI=10.1371/journal.pbio.0020303;
RA   Ward N.L., Larsen O., Sakwa J., Bruseth L., Khouri H.M., Durkin A.S.,
RA   Dimitrov G., Jiang L., Scanlan D., Kang K.H., Lewis M.R., Nelson K.E.,
RA   Methe B.A., Wu M., Heidelberg J.F., Paulsen I.T., Fouts D.E., Ravel J.,
RA   Tettelin H., Ren Q., Read T.D., DeBoy R.T., Seshadri R., Salzberg S.L.,
RA   Jensen H.B., Birkeland N.K., Nelson W.C., Dodson R.J., Grindhaug S.H.,
RA   Holt I.E., Eidhammer I., Jonasen I., Vanaken S., Utterback T.R.,
RA   Feldblyum T.V., Fraser C.M., Lillehaug J.R., Eisen J.A.;
RT   "Genomic insights into methanotrophy: the complete genome sequence of
RT   Methylococcus capsulatus (Bath).";
RL   PLoS Biol. 2:1616-1628(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}.
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DR   EMBL; AE017282; AAU91806.1; -; Genomic_DNA.
DR   RefSeq; WP_010961235.1; NC_002977.6.
DR   AlphaFoldDB; Q606M6; -.
DR   SMR; Q606M6; -.
DR   STRING; 243233.MCA1990; -.
DR   PRIDE; Q606M6; -.
DR   EnsemblBacteria; AAU91806; AAU91806; MCA1990.
DR   KEGG; mca:MCA1990; -.
DR   eggNOG; COG4108; Bacteria.
DR   HOGENOM; CLU_002794_2_1_6; -.
DR   OMA; TPASWPI; -.
DR   OrthoDB; 164090at2; -.
DR   Proteomes; UP000006821; 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; -; 2.
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..526
FT                   /note="Peptide chain release factor 3"
FT                   /id="PRO_0000242191"
FT   DOMAIN          9..277
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   526 AA;  59348 MW;  4653474047F915E9 CRC64;
     MSELEFEIER RRTFAIISHP DAGKTTLTEK LLLFGGAIQL AGSVKGRKAT RHATSDWMEM
     EKQRGISVTT SVMQFQHRDR IFNLLDTPGH EDFSEDTYRT LTAVDSALMV IDSAKGVEER
     TIKLMEVCRL RDTPILTFIN KLDREGREPV ELLDEVERVL NIQCAPITWP IGMGKRFKGV
     YHLYEDAIHL FSASHGDRIV KGEVVEGLNS PKLDELLGDI ADELRMEIEL VRGASHEFDP
     DAYRAGRQTP VFFGSAINNF GILELLDAFA EYAPPPQARQ ARERLVAPGE DKFSGFVFKI
     QANMDPAHRD RIAFLRVCSG RYTKGVRLFH VRSGKAMQVA NAITFQADSR ENVEEAYPGD
     IIGLHNHGTI QVGDTFTQGE NLKFEGIPSF APELFRRVVL KDPLRSKALQ RGLQQLSEEG
     ATQLFKPLRN NDLILGAVGV LQFDVTAFRL KAEYNVDCVY EAVPVTTARW VSCSDPKKLE
     EFKRKVHDNL AEDGSGYLVY LATSRVNLSL TEERWPEIRF SATREL