ID   NUSB_HAHCH              Reviewed;         149 AA.
AC   Q2S9S0;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   24-JAN-2006, sequence version 1.
DT   25-MAY-2022, entry version 87.
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=HCH_05953;
OS   Hahella chejuensis (strain KCTC 2396).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Oceanospirillales;
OC   Hahellaceae; Hahella.
OX   NCBI_TaxID=349521;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=KCTC 2396;
RX   PubMed=16352867; DOI=10.1093/nar/gki1016;
RA   Jeong H., Yim J.H., Lee C., Choi S.-H., Park Y.K., Yoon S.H., Hur C.-G.,
RA   Kang H.-Y., Kim D., Lee H.H., Park K.H., Park S.-H., Park H.-S., Lee H.K.,
RA   Oh T.K., Kim J.F.;
RT   "Genomic blueprint of Hahella chejuensis, a marine microbe producing an
RT   algicidal agent.";
RL   Nucleic Acids Res. 33:7066-7073(2005).
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; CP000155; ABC32604.1; -; Genomic_DNA.
DR   RefSeq; WP_011399662.1; NC_007645.1.
DR   AlphaFoldDB; Q2S9S0; -.
DR   SMR; Q2S9S0; -.
DR   STRING; 349521.HCH_05953; -.
DR   EnsemblBacteria; ABC32604; ABC32604; HCH_05953.
DR   KEGG; hch:HCH_05953; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_4_1_6; -.
DR   OMA; DRMPVVD; -.
DR   OrthoDB; 1574817at2; -.
DR   Proteomes; UP000000238; 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..149
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265530"
SQ   SEQUENCE   149 AA;  16628 MW;  0DD53F46B9D064AC CRC64;
     MSKAMEKRRA ARKLALQALY QWRVAGASIS QIEAEFAVDN DLQQVDRDLF KAVLYGVPSS
     VSELDALLQP FVDRKLTDVD PVELSLIRMG AFELRSRIEV PYRVVINEAV ELAKQFGGTD
     GHKFVNSVLD KLAPQLRQAE VAAAKSKKK