ID   NUSB_BIFLO              Reviewed;         190 AA.
AC   Q8G817;
DT   20-JUN-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 90.
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=BL0066;
OS   Bifidobacterium longum (strain NCC 2705).
OC   Bacteria; Actinobacteria; Bifidobacteriales; Bifidobacteriaceae;
OC   Bifidobacterium.
OX   NCBI_TaxID=206672;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=NCC 2705;
RX   PubMed=12381787; DOI=10.1073/pnas.212527599;
RA   Schell M.A., Karmirantzou M., Snel B., Vilanova D., Berger B., Pessi G.,
RA   Zwahlen M.-C., Desiere F., Bork P., Delley M., Pridmore R.D., Arigoni F.;
RT   "The genome sequence of Bifidobacterium longum reflects its adaptation to
RT   the human gastrointestinal tract.";
RL   Proc. Natl. Acad. Sci. U.S.A. 99:14422-14427(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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; AE014295; AAN23932.1; -; Genomic_DNA.
DR   RefSeq; NP_695296.1; NC_004307.2.
DR   RefSeq; WP_007053263.1; NC_004307.2.
DR   AlphaFoldDB; Q8G817; -.
DR   SMR; Q8G817; -.
DR   STRING; 206672.BL0066; -.
DR   EnsemblBacteria; AAN23932; AAN23932; BL0066.
DR   KEGG; blo:BL0066; -.
DR   PATRIC; fig|206672.9.peg.72; -.
DR   HOGENOM; CLU_087843_2_1_11; -.
DR   OMA; DRMPVVD; -.
DR   PhylomeDB; Q8G817; -.
DR   Proteomes; UP000000439; 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..190
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176509"
FT   REGION          135..190
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   190 AA;  20308 MW;  1FCDFF1FEAF37E7E CRC64;
     MARSTARKRA LNTLYEADEK SQDILSLLDE RIAHPGAQTP LPDYAIEIVK GVAEHRRQID
     MTLDEHSTGW KVRRMGVVDR NILRIAAWEI LFTDDVPDKV AIDEALALAK TLCDDDSPAF
     IHGLLSAVCT AKNAAPAPES VAEEADEESS DSAAAASEPT DEGDVSDSPD SSGASDEPAA
     PSAEIQPTVD