ID   NUSB_CHRSD              Reviewed;         166 AA.
AC   Q1QUC9;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   16-MAY-2006, sequence version 1.
DT   25-MAY-2022, entry version 108.
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=Csal_2582;
OS   Chromohalobacter salexigens (strain ATCC BAA-138 / DSM 3043 / CIP 106854 /
OS   NCIMB 13768 / 1H11).
OC   Bacteria; Proteobacteria; Gammaproteobacteria; Oceanospirillales;
OC   Halomonadaceae; Chromohalobacter.
OX   NCBI_TaxID=290398;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC BAA-138 / DSM 3043 / CIP 106854 / NCIMB 13768 / 1H11;
RX   PubMed=22675587; DOI=10.4056/sigs.2285059;
RA   Copeland A., O'Connor K., Lucas S., Lapidus A., Berry K.W., Detter J.C.,
RA   Del Rio T.G., Hammon N., Dalin E., Tice H., Pitluck S., Bruce D.,
RA   Goodwin L., Han C., Tapia R., Saunders E., Schmutz J., Brettin T.,
RA   Larimer F., Land M., Hauser L., Vargas C., Nieto J.J., Kyrpides N.C.,
RA   Ivanova N., Goker M., Klenk H.P., Csonka L.N., Woyke T.;
RT   "Complete genome sequence of the halophilic and highly halotolerant
RT   Chromohalobacter salexigens type strain (1H11(T)).";
RL   Stand. Genomic Sci. 5:379-388(2011).
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; CP000285; ABE59929.1; -; Genomic_DNA.
DR   RefSeq; WP_011507875.1; NC_007963.1.
DR   AlphaFoldDB; Q1QUC9; -.
DR   SMR; Q1QUC9; -.
DR   STRING; 290398.Csal_2582; -.
DR   EnsemblBacteria; ABE59929; ABE59929; Csal_2582.
DR   KEGG; csa:Csal_2582; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_4_1_6; -.
DR   OMA; DRMPVVD; -.
DR   OrthoDB; 1574817at2; -.
DR   Proteomes; UP000000239; 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..166
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265504"
SQ   SEQUENCE   166 AA;  18832 MW;  C4CC8411EFF07314 CRC64;
     MSQTPREATP AQQSRRAARE LAVQGLYQWQ MTGKSITAVE SEFRAQIADE DLEDHENWHK
     VMGIADLALF HELLHNVAAD REAIDKTIAP LLDRRLEDLD RIELAILRLG AYELKYRLEV
     PYRAVINEGI ELAKAFGATD GHKYVNGILD KLASRLRSAE VAARRR