ID   NUSB_ROSCS              Reviewed;         142 AA.
AC   A7NP12;
DT   20-MAY-2008, integrated into UniProtKB/Swiss-Prot.
DT   02-OCT-2007, sequence version 1.
DT   25-MAY-2022, entry version 79.
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=Rcas_3255;
OS   Roseiflexus castenholzii (strain DSM 13941 / HLO8).
OC   Bacteria; Chloroflexi; Chloroflexia; Chloroflexales; Roseiflexineae;
OC   Roseiflexaceae; Roseiflexus.
OX   NCBI_TaxID=383372;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 13941 / HLO8;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Glavina del Rio T., Dalin E.,
RA   Tice H., Pitluck S., Thompson L.S., Brettin T., Bruce D., Detter J.C.,
RA   Han C., Tapia R., Schmutz J., Larimer F., Land M., Hauser L., Kyrpides N.,
RA   Mikhailova N., Bryant D.A., Hanada S., Tsukatani Y., Richardson P.;
RT   "Complete sequence of Roseiflexus castenholzii DSM 13941.";
RL   Submitted (AUG-2007) to the EMBL/GenBank/DDBJ databases.
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; CP000804; ABU59307.1; -; Genomic_DNA.
DR   RefSeq; WP_012121731.1; NC_009767.1.
DR   AlphaFoldDB; A7NP12; -.
DR   SMR; A7NP12; -.
DR   STRING; 383372.Rcas_3255; -.
DR   EnsemblBacteria; ABU59307; ABU59307; Rcas_3255.
DR   KEGG; rca:Rcas_3255; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_3_2_0; -.
DR   OMA; DRMPVVD; -.
DR   OrthoDB; 1574817at2; -.
DR   Proteomes; UP000000263; 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   RNA-binding; Transcription; Transcription antitermination;
KW   Transcription regulation.
FT   CHAIN           1..142
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_1000075198"
SQ   SEQUENCE   142 AA;  16077 MW;  04DD8433FB894885 CRC64;
     MASLRHRVRA IALQILFELD ATDHPPDQVV GRRLEEEQLP PEGERFLRRL VFGAWEHAAH
     LDRIIEEAAP NWPVSQMPGV DKAILRIALF EALIDKEEKT PLKAIINEAV ELAKQYGSDN
     SSRFVNGVLG TVVSRYRERS KG