ID   NUSG_BUCAP              Reviewed;         181 AA.
AC   Q8KA65;
DT   08-NOV-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2002, sequence version 1.
DT   03-AUG-2022, entry version 101.
DE   RecName: Full=Transcription termination/antitermination protein NusG {ECO:0000255|HAMAP-Rule:MF_00948};
GN   Name=nusG {ECO:0000255|HAMAP-Rule:MF_00948}; OrderedLocusNames=BUsg_040;
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: Participates in transcription elongation, termination and
CC       antitermination. In the absence of Rho, increases the rate of
CC       transcription elongation by the RNA polymerase (RNAP), probably by
CC       partially suppressing pausing. In the presence of Rho, modulates most
CC       Rho-dependent termination events by interacting with the RNAP to render
CC       the complex more susceptible to the termination activity of Rho. May be
CC       required to overcome a kinetic limitation of Rho to function at certain
CC       terminators. Also involved in ribosomal RNA transcriptional
CC       antitermination. {ECO:0000255|HAMAP-Rule:MF_00948}.
CC   -!- SUBUNIT: Monomer. Interacts with the transcription termination factor
CC       Rho and with RNA polymerase. {ECO:0000255|HAMAP-Rule:MF_00948}.
CC   -!- SIMILARITY: Belongs to the NusG family. {ECO:0000255|HAMAP-
CC       Rule:MF_00948}.
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DR   EMBL; AE013218; AAM67611.1; -; Genomic_DNA.
DR   RefSeq; WP_011053577.1; NC_004061.1.
DR   AlphaFoldDB; Q8KA65; -.
DR   SMR; Q8KA65; -.
DR   STRING; 198804.BUsg_040; -.
DR   EnsemblBacteria; AAM67611; AAM67611; BUsg_040.
DR   KEGG; bas:BUsg_040; -.
DR   eggNOG; COG0250; Bacteria.
DR   HOGENOM; CLU_067287_1_0_6; -.
DR   OMA; DGPFNGF; -.
DR   OrthoDB; 2027986at2; -.
DR   Proteomes; UP000000416; Chromosome.
DR   GO; GO:0005829; C:cytosol; IEA:UniProt.
DR   GO; GO:0006354; P:DNA-templated transcription, elongation; IEA:UniProtKB-UniRule.
DR   GO; GO:0006353; P:DNA-templated transcription, termination; IEA:UniProtKB-UniRule.
DR   GO; GO:0032784; P:regulation of DNA-templated transcription, elongation; IEA:InterPro.
DR   GO; GO:0031564; P:transcription antitermination; IEA:UniProtKB-UniRule.
DR   Gene3D; 2.30.30.30; -; 1.
DR   Gene3D; 3.30.70.940; -; 1.
DR   HAMAP; MF_00948; NusG; 1.
DR   InterPro; IPR005824; KOW.
DR   InterPro; IPR006645; NGN_dom.
DR   InterPro; IPR036735; NGN_dom_sf.
DR   InterPro; IPR043425; NusG-like.
DR   InterPro; IPR014722; Rib_L2_dom2.
DR   InterPro; IPR001062; Transcrpt_antiterm_NusG.
DR   InterPro; IPR015869; Transcrpt_antiterm_NusG_bac_CS.
DR   InterPro; IPR008991; Translation_prot_SH3-like_sf.
DR   PANTHER; PTHR30265; PTHR30265; 1.
DR   PANTHER; PTHR30265:SF2; PTHR30265:SF2; 1.
DR   Pfam; PF00467; KOW; 1.
DR   Pfam; PF02357; NusG; 1.
DR   PRINTS; PR00338; NUSGTNSCPFCT.
DR   SMART; SM00739; KOW; 1.
DR   SMART; SM00738; NGN; 1.
DR   SUPFAM; SSF50104; SSF50104; 1.
DR   SUPFAM; SSF82679; SSF82679; 1.
DR   TIGRFAMs; TIGR00922; nusG; 1.
DR   PROSITE; PS01014; NUSG; 1.
PE   3: Inferred from homology;
KW   Transcription; Transcription antitermination; Transcription regulation;
KW   Transcription termination.
FT   CHAIN           1..181
FT                   /note="Transcription termination/antitermination protein
FT                   NusG"
FT                   /id="PRO_0000113919"
FT   DOMAIN          130..161
FT                   /note="KOW"
FT                   /evidence="ECO:0000255|HAMAP-Rule:MF_00948"
SQ   SEQUENCE   181 AA;  20916 MW;  5D8113E3B3C6C21F CRC64;
     MHESLKKKWY VLQAFSGFES RVAQSIKEHV KLNKMNDFFG EVMVPSEEVI EIRGGQRRKS
     EYKFFPGYVL IHMIMTDSTW HLIRNVPRVL GFIGGKSDKP SPISDKEVDI IINRLRQIGD
     KPRPKTLFEP GEMIRVNDGP FADFNGVVEE VDYEKSRLKV SVSIFGRATP VELDFRQVEK
     N