ID   NUSB_ALIFS              Reviewed;         155 AA.
AC   Q8G9G3;
DT   23-MAY-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   25-MAY-2022, entry version 72.
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};
OS   Aliivibrio fischeri (Vibrio fischeri).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Vibrionales; Vibrionaceae;
OC   Aliivibrio.
OX   NCBI_TaxID=668;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RC   STRAIN=ATCC 7744 / DSM 507 / NCIMB 1281 / 398;
RX   PubMed=12444973; DOI=10.1046/j.1432-1033.2002.03304.x;
RA   Kasai S., Sumimoto T.;
RT   "Stimulated biosynthesis of flavins in Photobacterium phosphoreum IFO 13896
RT   and the presence of complete rib operons in two species of luminous
RT   bacteria.";
RL   Eur. J. Biochem. 269:5851-5860(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}.
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DR   EMBL; AB076605; BAC44861.1; -; Genomic_DNA.
DR   RefSeq; WP_005418093.1; NZ_WOBZ01000001.1.
DR   AlphaFoldDB; Q8G9G3; -.
DR   SMR; Q8G9G3; -.
DR   GeneID; 64242949; -.
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..155
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176603"
SQ   SEQUENCE   155 AA;  17843 MW;  A5B99D25FB0DF886 CRC64;
     MGVSVKPAAR RNARQFALQA IYSWQLSKEN VADIEEQFLT AEKYDEEEHH ANEPKLQTPE
     TDVAYFRDLF SGVALNHMKL DGKMRPYLSR PLQDLDQMEL ALLRMSIYEM MNRDDVPYKV
     VINEAIELAK VFAAEDSHKF VNGVLDKAAP TLRKK