ID   NUSB_HAES1              Reviewed;         144 AA.
AC   Q0I3N5;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   03-OCT-2006, sequence version 1.
DT   25-MAY-2022, entry version 84.
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=HS_0831;
OS   Haemophilus somnus (strain 129Pt) (Histophilus somni).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Pasteurellales;
OC   Pasteurellaceae; Histophilus.
OX   NCBI_TaxID=205914;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=129Pt;
RX   PubMed=17172329; DOI=10.1128/jb.01422-06;
RA   Challacombe J.F., Duncan A.J., Brettin T.S., Bruce D., Chertkov O.,
RA   Detter J.C., Han C.S., Misra M., Richardson P., Tapia R., Thayer N.,
RA   Xie G., Inzana T.J.;
RT   "Complete genome sequence of Haemophilus somnus (Histophilus somni) strain
RT   129Pt and comparison to Haemophilus ducreyi 35000HP and Haemophilus
RT   influenzae Rd.";
RL   J. Bacteriol. 189:1890-1898(2007).
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; CP000436; ABI25106.1; -; Genomic_DNA.
DR   RefSeq; WP_011608984.1; NC_008309.1.
DR   AlphaFoldDB; Q0I3N5; -.
DR   SMR; Q0I3N5; -.
DR   STRING; 205914.HS_0831; -.
DR   EnsemblBacteria; ABI25106; ABI25106; HS_0831.
DR   KEGG; hso:HS_0831; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_4_1_6; -.
DR   OMA; DRMPVVD; -.
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..144
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265529"
SQ   SEQUENCE   144 AA;  16644 MW;  A2A5FB7453FD1043 CRC64;
     MTEKVKKLSP RRRARECAVQ TLYSWAISKN APEEIELNFI VDQDNEMKGV DMPYFRKLFR
     QTVDHVEIVD SIMAPYLDRD NVELDPIECA ILRLAVYELK FELDVPYKVV INEAIEVAKV
     FGAEESHKYI NGVLDKIAPA LSRK