ID   RF2_STRPN               Reviewed;         364 AA.
AC   Q2MGI2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-FEB-2006, sequence version 1.
DT   25-MAY-2022, entry version 80.
DE   RecName: Full=Peptide chain release factor 2 {ECO:0000255|HAMAP-Rule:MF_00094};
DE            Short=RF-2 {ECO:0000255|HAMAP-Rule:MF_00094};
GN   Name=prfB {ECO:0000255|HAMAP-Rule:MF_00094}; OrderedLocusNames=SP_0755;
OS   Streptococcus pneumoniae serotype 4 (strain ATCC BAA-334 / TIGR4).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=170187;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-334 / TIGR4;
RX   PubMed=11463916; DOI=10.1126/science.1061217;
RA   Tettelin H., Nelson K.E., Paulsen I.T., Eisen J.A., Read T.D.,
RA   Peterson S.N., Heidelberg J.F., DeBoy R.T., Haft D.H., Dodson R.J.,
RA   Durkin A.S., Gwinn M.L., Kolonay J.F., Nelson W.C., Peterson J.D.,
RA   Umayam L.A., White O., Salzberg S.L., Lewis M.R., Radune D.,
RA   Holtzapple E.K., Khouri H.M., Wolf A.M., Utterback T.R., Hansen C.L.,
RA   McDonald L.A., Feldblyum T.V., Angiuoli S.V., Dickinson T., Hickey E.K.,
RA   Holt I.E., Loftus B.J., Yang F., Smith H.O., Venter J.C., Dougherty B.A.,
RA   Morrison D.A., Hollingshead S.K., Fraser C.M.;
RT   "Complete genome sequence of a virulent isolate of Streptococcus
RT   pneumoniae.";
RL   Science 293:498-506(2001).
CC   -!- FUNCTION: Peptide chain release factor 2 directs the termination of
CC       translation in response to the peptide chain termination codons UGA and
CC       UAA. {ECO:0000255|HAMAP-Rule:MF_00094}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00094}.
CC   -!- PTM: Methylated by PrmC. Methylation increases the termination
CC       efficiency of RF2. {ECO:0000255|HAMAP-Rule:MF_00094}.
CC   -!- SIMILARITY: Belongs to the prokaryotic/mitochondrial release factor
CC       family. {ECO:0000255|HAMAP-Rule:MF_00094}.
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DR   EMBL; AE005672; ABC75805.1; -; Genomic_DNA.
DR   AlphaFoldDB; Q2MGI2; -.
DR   SMR; Q2MGI2; -.
DR   STRING; 170187.SP_0755; -.
DR   EnsemblBacteria; ABC75805; ABC75805; SP_0755.
DR   KEGG; spn:SP_0755; -.
DR   eggNOG; COG1186; Bacteria.
DR   OMA; YVFHPYQ; -.
DR   PhylomeDB; Q2MGI2; -.
DR   Proteomes; UP000000585; Chromosome.
DR   GO; GO:0005737; C:cytoplasm; IEA:UniProtKB-SubCell.
DR   GO; GO:0016149; F:translation release factor activity, codon specific; IEA:UniProtKB-UniRule.
DR   HAMAP; MF_00094; Rel_fac_2; 1.
DR   InterPro; IPR005139; PCRF.
DR   InterPro; IPR000352; Pep_chain_release_fac_I.
DR   InterPro; IPR045853; Pep_chain_release_fac_I_sf.
DR   InterPro; IPR004374; PrfB.
DR   Pfam; PF03462; PCRF; 1.
DR   Pfam; PF00472; RF-1; 1.
DR   SMART; SM00937; PCRF; 1.
DR   SUPFAM; SSF75620; SSF75620; 1.
DR   TIGRFAMs; TIGR00020; prfB; 1.
DR   PROSITE; PS00745; RF_PROK_I; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methylation; Protein biosynthesis.
FT   CHAIN           1..364
FT                   /note="Peptide chain release factor 2"
FT                   /id="PRO_1000005015"
FT   MOD_RES         249
FT                   /note="N5-methylglutamine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00094"
SQ   SEQUENCE   364 AA;  41360 MW;  DC394FECD7BFC3CA CRC64;
     MDISVIRQKI DANREKLASF RGSLDLEGLE EEIAILENKM TEPDFWNDNI AAQKTSQELN
     ELKNTYNTFH KMEELQDEVE ILLDFLAEDE SVHDELVAQL AELDKIMTSY EMTLLLSEPY
     DHNNAILEIH PGSGGTEAQD WGDMLLRMYT RYGNAKGFKV EVLDYQAGDE AGIKSVTLSF
     EGPNAYGLLK SEMGVHRLVR ISPFDSAKRR HTSFTSVEVM PELDDTIEVE IREDDIKMDT
     FRSGGAGGQN VNKVSTGVRL THIPTGIVVQ STVDRTQYGN RDRAMKMLQA KLYQMEQDKK
     AAEVDSLKGE KKEITWGSQI RSYVFTPYTM VKDHRTSFEV AQVDKVMDGD LDGFIDAYLK
     WRIS