ID   NUSB_CLOD6              Reviewed;         169 AA.
AC   Q18B61;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   25-JUL-2006, sequence version 1.
DT   03-AUG-2022, entry version 86.
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=CD630_12010;
OS   Clostridioides difficile (strain 630) (Peptoclostridium difficile).
OC   Bacteria; Firmicutes; Clostridia; Eubacteriales; Peptostreptococcaceae;
OC   Clostridioides.
OX   NCBI_TaxID=272563;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=630;
RX   PubMed=16804543; DOI=10.1038/ng1830;
RA   Sebaihia M., Wren B.W., Mullany P., Fairweather N.F., Minton N.,
RA   Stabler R., Thomson N.R., Roberts A.P., Cerdeno-Tarraga A.M., Wang H.,
RA   Holden M.T.G., Wright A., Churcher C., Quail M.A., Baker S., Bason N.,
RA   Brooks K., Chillingworth T., Cronin A., Davis P., Dowd L., Fraser A.,
RA   Feltwell T., Hance Z., Holroyd S., Jagels K., Moule S., Mungall K.,
RA   Price C., Rabbinowitsch E., Sharp S., Simmonds M., Stevens K., Unwin L.,
RA   Whithead S., Dupuy B., Dougan G., Barrell B., Parkhill J.;
RT   "The multidrug-resistant human pathogen Clostridium difficile has a highly
RT   mobile, mosaic genome.";
RL   Nat. Genet. 38:779-786(2006).
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; AM180355; CAJ68055.1; -; Genomic_DNA.
DR   RefSeq; YP_001087694.1; NC_009089.1.
DR   AlphaFoldDB; Q18B61; -.
DR   SMR; Q18B61; -.
DR   STRING; 272563.CD630_12010; -.
DR   PRIDE; Q18B61; -.
DR   EnsemblBacteria; CAJ68055; CAJ68055; CD630_12010.
DR   KEGG; cdf:CD630_12010; -.
DR   PATRIC; fig|272563.8.peg.1260; -.
DR   eggNOG; COG0781; Bacteria.
DR   OMA; DRMPVVD; -.
DR   PhylomeDB; Q18B61; -.
DR   BioCyc; PDIF272563:G12WB-1332-MON; -.
DR   Proteomes; UP000001978; 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   Reference proteome; RNA-binding; Transcription;
KW   Transcription antitermination; Transcription regulation.
FT   CHAIN           1..169
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265505"
SQ   SEQUENCE   169 AA;  19742 MW;  437156B1FE85747F CRC64;
     MMKKDRAQKS TTREYIMKLI YQININKEDF ETLEDKVDNF LKDNSEHIIN RYKELALQYS
     KNTNLKLEDT EIEDVIDKKY INTVCKALKE NHDKIDELIN KHAKNWTVDR MPKVDVSILR
     LSVCEILYLD TPNKVSINEA VELAKIYCDD KSPKFINGIL GSVVDEIGK