ID   RF1_STRT1               Reviewed;         359 AA.
AC   Q5M0B7;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   25-MAY-2022, entry version 94.
DE   RecName: Full=Peptide chain release factor 1 {ECO:0000255|HAMAP-Rule:MF_00093};
DE            Short=RF-1 {ECO:0000255|HAMAP-Rule:MF_00093};
GN   Name=prfA {ECO:0000255|HAMAP-Rule:MF_00093}; OrderedLocusNames=str0752;
OS   Streptococcus thermophilus (strain CNRZ 1066).
OC   Bacteria; Firmicutes; Bacilli; Lactobacillales; Streptococcaceae;
OC   Streptococcus.
OX   NCBI_TaxID=299768;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CNRZ 1066;
RX   PubMed=15543133; DOI=10.1038/nbt1034;
RA   Bolotin A., Quinquis B., Renault P., Sorokin A., Ehrlich S.D.,
RA   Kulakauskas S., Lapidus A., Goltsman E., Mazur M., Pusch G.D., Fonstein M.,
RA   Overbeek R., Kyprides N., Purnelle B., Prozzi D., Ngui K., Masuy D.,
RA   Hancy F., Burteau S., Boutry M., Delcour J., Goffeau A., Hols P.;
RT   "Complete sequence and comparative genome analysis of the dairy bacterium
RT   Streptococcus thermophilus.";
RL   Nat. Biotechnol. 22:1554-1558(2004).
CC   -!- FUNCTION: Peptide chain release factor 1 directs the termination of
CC       translation in response to the peptide chain termination codons UAG and
CC       UAA. {ECO:0000255|HAMAP-Rule:MF_00093}.
CC   -!- SUBCELLULAR LOCATION: Cytoplasm {ECO:0000255|HAMAP-Rule:MF_00093}.
CC   -!- PTM: Methylated by PrmC. Methylation increases the termination
CC       efficiency of RF1. {ECO:0000255|HAMAP-Rule:MF_00093}.
CC   -!- SIMILARITY: Belongs to the prokaryotic/mitochondrial release factor
CC       family. {ECO:0000255|HAMAP-Rule:MF_00093}.
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DR   EMBL; CP000024; AAV62345.1; -; Genomic_DNA.
DR   RefSeq; WP_002948472.1; NC_006449.1.
DR   AlphaFoldDB; Q5M0B7; -.
DR   SMR; Q5M0B7; -.
DR   GeneID; 66898650; -.
DR   KEGG; stc:str0752; -.
DR   HOGENOM; CLU_036856_0_1_9; -.
DR   OMA; ISDHRVG; -.
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_00093; Rel_fac_1; 1.
DR   InterPro; IPR005139; PCRF.
DR   InterPro; IPR000352; Pep_chain_release_fac_I.
DR   InterPro; IPR045853; Pep_chain_release_fac_I_sf.
DR   InterPro; IPR004373; RF-1.
DR   Pfam; PF03462; PCRF; 1.
DR   Pfam; PF00472; RF-1; 1.
DR   SMART; SM00937; PCRF; 1.
DR   SUPFAM; SSF75620; SSF75620; 1.
DR   TIGRFAMs; TIGR00019; prfA; 1.
DR   PROSITE; PS00745; RF_PROK_I; 1.
PE   3: Inferred from homology;
KW   Cytoplasm; Methylation; Protein biosynthesis.
FT   CHAIN           1..359
FT                   /note="Peptide chain release factor 1"
FT                   /id="PRO_0000263370"
FT   MOD_RES         236
FT                   /note="N5-methylglutamine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00093"
SQ   SEQUENCE   359 AA;  40678 MW;  8BC3D22C083AB7C5 CRC64;
     MNIYDQLQAV EDRYEELGEL LSDPEVVSDT KRFMELSREE ANTRETVIAY REYKQVIQNI
     SDAEEMIKEA SGDADLEEMA KEELKKSKAA KEEYEERLKI LLLPKDPNDD KNIILEIRGA
     AGGDEAALFA GDLLAMYQKY AETQGWRFEV MEASYNGVGG IKEVVAMVSG ESVYSKLKYE
     SGAHRVQRVP VTESQGRVHT STATVLVMPE VEEMEYEIDP KDLRVDIYHA SGAGGQNVNK
     VATAVRMVHI PTGIKVEMQE ERTQQKNRDK ALKIIRARVA DHFAQIAQDE QDAERKSTVG
     TGDRSERIRT YNFPQNRVTD HRIGLTLQKL DTILAGKMDE VIDALVLYDQ TQKLEELNK