ID   RF1_BUCAP               Reviewed;         361 AA.
AC   Q8K9X0;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 112.
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=BUsg_165;
OS   Buchnera aphidicola subsp. Schizaphis graminum (strain Sg).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Enterobacterales;
OC   Erwiniaceae; Buchnera.
OX   NCBI_TaxID=198804;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=Sg;
RX   PubMed=12089438; DOI=10.1126/science.1071278;
RA   Tamas I., Klasson L., Canbaeck B., Naeslund A.K., Eriksson A.-S.,
RA   Wernegreen J.J., Sandstroem J.P., Moran N.A., Andersson S.G.E.;
RT   "50 million years of genomic stasis in endosymbiotic bacteria.";
RL   Science 296:2376-2379(2002).
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; AE013218; AAM67732.1; -; Genomic_DNA.
DR   RefSeq; WP_011053699.1; NC_004061.1.
DR   AlphaFoldDB; Q8K9X0; -.
DR   SMR; Q8K9X0; -.
DR   STRING; 198804.BUsg_165; -.
DR   EnsemblBacteria; AAM67732; AAM67732; BUsg_165.
DR   KEGG; bas:BUsg_165; -.
DR   eggNOG; COG0216; Bacteria.
DR   HOGENOM; CLU_036856_0_1_6; -.
DR   OMA; ISDHRVG; -.
DR   OrthoDB; 928964at2; -.
DR   Proteomes; UP000000416; 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_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..361
FT                   /note="Peptide chain release factor 1"
FT                   /id="PRO_0000177647"
FT   MOD_RES         235
FT                   /note="N5-methylglutamine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00093"
SQ   SEQUENCE   361 AA;  41459 MW;  0C69E163BA05D21D CRC64;
     MNSSIFNKLK SLRNRYEEIE IMLSQKDTIS NQEKFKNLSK EYLQISEIVK NFIKWEKLET
     DIKNINLLFN DVEMHDIAQE ELFIVKKQKK KLEEKIKILL LPVDPNDQHS CFIEIRAATG
     GDESSIFAGE LFRMYTRYAE NYMWKTEIMS SSENERGGFK EIIAKVTGKG ACGRLKFESG
     GHRVQRVPET ESQGRIHTST CTVAIMPVRP KTKKEEIKVS DLKIDTFRSS GAGGQHVNTT
     DSAIRITHIP SGNVVECQDE RSQHKNKAKA LSILSARVYA DKLAKSQKEN SSMRRILLGT
     GERSDRNRTY NFAQNRITDH RINLTIYKLN EVLQGKLDLL IDPIMQEYQA DMLSSLSEFK
     L