ID   NUSB_CHLPD              Reviewed;         165 AA.
AC   A1BDT2;
DT   15-JAN-2008, integrated into UniProtKB/Swiss-Prot.
DT   23-JAN-2007, sequence version 1.
DT   25-MAY-2022, entry version 81.
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};
GN   OrderedLocusNames=Cpha266_0502;
OS   Chlorobium phaeobacteroides (strain DSM 266).
OC   Bacteria; Chlorobi; Chlorobia; Chlorobiales; Chlorobiaceae;
OC   Chlorobium/Pelodictyon group; Chlorobium.
OX   NCBI_TaxID=290317;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=DSM 266;
RG   US DOE Joint Genome Institute;
RA   Copeland A., Lucas S., Lapidus A., Barry K., Detter J.C.,
RA   Glavina del Rio T., Hammon N., Israni S., Pitluck S., Goltsman E.,
RA   Schmutz J., Larimer F., Land M., Hauser L., Mikhailova N., Li T.,
RA   Overmann J., Bryant D.A., Richardson P.;
RT   "Complete sequence of Chlorobium phaeobacteroides DSM 266.";
RL   Submitted (DEC-2006) 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; CP000492; ABL64559.1; -; Genomic_DNA.
DR   RefSeq; WP_011744392.1; NC_008639.1.
DR   AlphaFoldDB; A1BDT2; -.
DR   SMR; A1BDT2; -.
DR   STRING; 290317.Cpha266_0502; -.
DR   EnsemblBacteria; ABL64559; ABL64559; Cpha266_0502.
DR   KEGG; cph:Cpha266_0502; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_3_0_10; -.
DR   OMA; MKTYRRQ; -.
DR   OrthoDB; 1574817at2; -.
DR   Proteomes; UP000008701; 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..165
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_1000023725"
SQ   SEQUENCE   165 AA;  19232 MW;  483EE159FBC5950A CRC64;
     MKTYRRQIRE KILQALYTLE LRDTDIESAA NWLLTKEIQE DPNAMKFFNL LLKNIKEHRE
     EIDQYIARHT FNWDMSRIAI IDKNILRMAL AELLYCEDIP PKVSINEAIE IAKKFSSTDK
     SSKFVNGILD AIFNELKAEG KIHKNGRGLI DHSAIKLQKE SETPE