ID   NUSB_CALS4              Reviewed;         140 AA.
AC   Q8RAD1;
DT   02-AUG-2002, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-2002, sequence version 1.
DT   25-MAY-2022, entry version 93.
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=TTE1292;
OS   Caldanaerobacter subterraneus subsp. tengcongensis (strain DSM 15242 / JCM
OS   11007 / NBRC 100824 / MB4) (Thermoanaerobacter tengcongensis).
OC   Bacteria; Firmicutes; Clostridia; Thermoanaerobacterales;
OC   Thermoanaerobacteraceae; Caldanaerobacter.
OX   NCBI_TaxID=273068;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 15242 / JCM 11007 / NBRC 100824 / MB4;
RX   PubMed=11997336; DOI=10.1101/gr.219302;
RA   Bao Q., Tian Y., Li W., Xu Z., Xuan Z., Hu S., Dong W., Yang J., Chen Y.,
RA   Xue Y., Xu Y., Lai X., Huang L., Dong X., Ma Y., Ling L., Tan H., Chen R.,
RA   Wang J., Yu J., Yang H.;
RT   "A complete sequence of the T. tengcongensis genome.";
RL   Genome Res. 12:689-700(2002).
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, ECO:0000305}.
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DR   EMBL; AE008691; AAM24516.1; -; Genomic_DNA.
DR   RefSeq; WP_011025606.1; NC_003869.1.
DR   AlphaFoldDB; Q8RAD1; -.
DR   SMR; Q8RAD1; -.
DR   STRING; 273068.TTE1292; -.
DR   EnsemblBacteria; AAM24516; AAM24516; TTE1292.
DR   KEGG; tte:TTE1292; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_3_3_9; -.
DR   OMA; DRMPVVD; -.
DR   OrthoDB; 1574817at2; -.
DR   Proteomes; UP000000555; 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..140
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176600"
SQ   SEQUENCE   140 AA;  16421 MW;  3BC988C3589B8130 CRC64;
     MNRTEAREWV VKMLYQYDVS KLPLEKIFEN FYEEHDPGEQ KEYIEGTVRG TVEHLEEIDR
     EIEKYSKDWP LYRMPRIDLA ILRCSMYEML YGNIPVSISI NEAVEIAKKY STDDSPSFIN
     GLLGAFVREK GLEEGEANDN