ID   RF2_NITSB               Reviewed;         368 AA.
AC   A6Q582;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   21-AUG-2007, sequence version 1.
DT   25-MAY-2022, entry version 76.
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=NIS_1534;
OS   Nitratiruptor sp. (strain SB155-2).
OC   Bacteria; Proteobacteria; Epsilonproteobacteria; Nautiliales;
OC   Nitratiruptoraceae; Nitratiruptor; unclassified Nitratiruptor.
OX   NCBI_TaxID=387092;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=SB155-2;
RX   PubMed=17615243; DOI=10.1073/pnas.0700687104;
RA   Nakagawa S., Takaki Y., Shimamura S., Reysenbach A.-L., Takai K.,
RA   Horikoshi K.;
RT   "Deep-sea vent epsilon-proteobacterial genomes provide insights into
RT   emergence of pathogens.";
RL   Proc. Natl. Acad. Sci. U.S.A. 104:12146-12150(2007).
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; AP009178; BAF70641.1; -; Genomic_DNA.
DR   RefSeq; WP_012082904.1; NC_009662.1.
DR   AlphaFoldDB; A6Q582; -.
DR   SMR; A6Q582; -.
DR   STRING; 387092.NIS_1534; -.
DR   EnsemblBacteria; BAF70641; BAF70641; NIS_1534.
DR   KEGG; nis:NIS_1534; -.
DR   eggNOG; COG1186; Bacteria.
DR   HOGENOM; CLU_036856_6_0_7; -.
DR   OMA; YVFHPYQ; -.
DR   OrthoDB; 928964at2; -.
DR   Proteomes; UP000001118; 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; Reference proteome.
FT   CHAIN           1..368
FT                   /note="Peptide chain release factor 2"
FT                   /id="PRO_1000005006"
FT   MOD_RES         251
FT                   /note="N5-methylglutamine"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00094"
SQ   SEQUENCE   368 AA;  42143 MW;  8EBD55C1A2A282D8 CRC64;
     MDSYEYSELL KKLEQKIENI KNIIKPDLIT KRLKEIEQLE NSPDFWNDAK KAGEIQKEKN
     RLSRILEKFE EARSSVEDAK DLFEMATEEE DTETLNMLFE EAPTLEEKVN KIEIETMLSG
     ENDDKNAIVT IHPGAGGTES QDWASILYRM YLRWAERHGF KVEVLDYQEG EEAGIKDVSF
     IIKGENAYGY LKAENGIHRL VRISPFDSNA RRHTSFASVM VSPEVDDDIN IVIEDKDIRV
     DTYRASGAGG QHVNKTDSAI RITHIPTGIV VQCQNDRSQH KNRATAMKML KSRLYELELE
     KKRAEQEGIE KSDIGWGHQI RSYVLAPYQQ VKDTRSNKAY SNVEAILDGD IDKIIEDVLI
     AEAEKESK