ID   NUSB_CHLCH              Reviewed;         169 AA.
AC   Q3ATI5;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   22-NOV-2005, sequence version 1.
DT   25-MAY-2022, entry version 89.
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=Cag_0417;
OS   Chlorobium chlorochromatii (strain CaD3).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobium/Pelodictyon group; Chlorobium.
OX   NCBI_TaxID=340177;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CaD3;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C., Glavina T.,
RA   Hammon N., Israni S., Pitluck S., Bryant D., Schmutz J., Larimer F.,
RA   Land M., Kyrpides N., Ivanova N., Richardson P.;
RT   "Complete sequence of Chlorobium chlorochromatii CaD3.";
RL   Submitted (AUG-2005) 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; CP000108; ABB27690.1; -; Genomic_DNA.
DR   RefSeq; WP_011361463.1; NC_007514.1.
DR   AlphaFoldDB; Q3ATI5; -.
DR   SMR; Q3ATI5; -.
DR   STRING; 340177.Cag_0417; -.
DR   EnsemblBacteria; ABB27690; ABB27690; Cag_0417.
DR   KEGG; cch:Cag_0417; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_3_0_10; -.
DR   OMA; MKTYRRQ; -.
DR   OrthoDB; 1574817at2; -.
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..169
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265503"
FT   REGION          147..169
FT                   /note="Disordered"
FT                   /evidence="ECO:0000256|SAM:MobiDB-lite"
SQ   SEQUENCE   169 AA;  19447 MW;  AB9F118FC3AADA71 CRC64;
     MKTYRRQIRE KILQALYTVE LRGITLDEAA GWLLTEEILA DPNAMKFFNL LLSSIKAHRE
     EIDNYIAQQT FNWDMSRIAI IDKNIIRMAL TEILYCEDIP PKVSINEAIE IAKKFNSTDK
     SSKFVNGILD AIFNKLKTEG KVHKNGRGLI DQSFSRPQKP ESEATEIEE