ID   NUSB_RICCN              Reviewed;         156 AA.
AC   Q92J65;
DT   31-JAN-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-DEC-2001, sequence version 1.
DT   25-MAY-2022, entry version 95.
DE   RecName: Full=Transcription antitermination protein NusB {ECO:0000255|HAMAP-Rule:MF_00073};
DE   AltName: Full=Antitermination factor NusB {ECO:0000255|HAMAP-Rule:MF_00073};
GN   Name=nusB {ECO:0000255|HAMAP-Rule:MF_00073}; OrderedLocusNames=RC0204;
OS   Rickettsia conorii (strain ATCC VR-613 / Malish 7).
OC   Bacteria; Proteobacteria; Alphaproteobacteria; Rickettsiales;
OC   Rickettsiaceae; Rickettsieae; Rickettsia; spotted fever group.
OX   NCBI_TaxID=272944;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC VR-613 / Malish 7;
RX   PubMed=11557893; DOI=10.1126/science.1061471;
RA   Ogata H., Audic S., Renesto-Audiffren P., Fournier P.-E., Barbe V.,
RA   Samson D., Roux V., Cossart P., Weissenbach J., Claverie J.-M., Raoult D.;
RT   "Mechanisms of evolution in Rickettsia conorii and R. prowazekii.";
RL   Science 293:2093-2098(2001).
CC   -!- FUNCTION: Involved in transcription antitermination. Required for
CC       transcription of ribosomal RNA (rRNA) genes. Binds specifically to the
CC       boxA antiterminator sequence of the ribosomal RNA (rrn) operons.
CC       {ECO:0000255|HAMAP-Rule:MF_00073}.
CC   -!- SIMILARITY: Belongs to the NusB family. {ECO:0000255|HAMAP-
CC       Rule:MF_00073}.
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DR   EMBL; AE006914; AAL02742.1; -; Genomic_DNA.
DR   PIR; D97725; D97725.
DR   RefSeq; WP_010976871.1; NC_003103.1.
DR   AlphaFoldDB; Q92J65; -.
DR   SMR; Q92J65; -.
DR   EnsemblBacteria; AAL02742; AAL02742; RC0204.
DR   KEGG; rco:RC0204; -.
DR   PATRIC; fig|272944.4.peg.234; -.
DR   HOGENOM; CLU_087843_4_3_5; -.
DR   OMA; LYQMDIA; -.
DR   Proteomes; UP000000816; Chromosome.
DR   GO; GO:0003723; F:RNA binding; IEA:UniProtKB-UniRule.
DR   GO; GO:0006353; P:DNA-templated transcription, termination; IEA:UniProtKB-UniRule.
DR   GO; GO:0006355; P:regulation of transcription, DNA-templated; IEA:InterPro.
DR   GO; GO:0031564; P:transcription antitermination; IEA:UniProtKB-KW.
DR   Gene3D; 1.10.940.10; -; 1.
DR   HAMAP; MF_00073; NusB; 1.
DR   InterPro; IPR035926; NusB-like_sf.
DR   InterPro; IPR011605; NusB_fam.
DR   InterPro; IPR006027; NusB_RsmB_TIM44.
DR   PANTHER; PTHR11078; PTHR11078; 1.
DR   Pfam; PF01029; NusB; 1.
DR   SUPFAM; SSF48013; SSF48013; 1.
DR   TIGRFAMs; TIGR01951; nusB; 1.
PE   3: Inferred from homology;
KW   RNA-binding; Transcription; Transcription antitermination;
KW   Transcription regulation.
FT   CHAIN           1..156
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176571"
SQ   SEQUENCE   156 AA;  17786 MW;  4E05293495595C8C CRC64;
     MSSNKINKKS IARIAAVQAI YQNILQNNDD MDDIMQNVLS FYQNNNAITD LPENLKISLS
     ISHFKMLVKS VFENIHKLDE IIDNHLTNDK DPAHMPILLR ALLRVSICEL LFCPTTPAKV
     VINEYTDIAN DMLNEHEIGF VNSVLDKIAK EHTRLI