ID   NUSB_GLOVI              Reviewed;         211 AA.
AC   Q7NKZ0;
DT   15-DEC-2003, integrated into UniProtKB/Swiss-Prot.
DT   15-DEC-2003, sequence version 1.
DT   25-MAY-2022, entry version 99.
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=gll1336;
OS   Gloeobacter violaceus (strain ATCC 29082 / PCC 7421).
OC   Bacteria; Cyanobacteria; Gloeobacteria; Gloeobacterales; Gloeobacteraceae;
OC   Gloeobacter.
OX   NCBI_TaxID=251221;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 29082 / PCC 7421;
RX   PubMed=14621292; DOI=10.1093/dnares/10.4.137;
RA   Nakamura Y., Kaneko T., Sato S., Mimuro M., Miyashita H., Tsuchiya T.,
RA   Sasamoto S., Watanabe A., Kawashima K., Kishida Y., Kiyokawa C., Kohara M.,
RA   Matsumoto M., Matsuno A., Nakazaki N., Shimpo S., Takeuchi C., Yamada M.,
RA   Tabata S.;
RT   "Complete genome structure of Gloeobacter violaceus PCC 7421, a
RT   cyanobacterium that lacks thylakoids.";
RL   DNA Res. 10:137-145(2003).
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; BA000045; BAC89277.1; -; Genomic_DNA.
DR   RefSeq; NP_924282.1; NC_005125.1.
DR   RefSeq; WP_011141336.1; NC_005125.1.
DR   AlphaFoldDB; Q7NKZ0; -.
DR   SMR; Q7NKZ0; -.
DR   STRING; 251221.35211900; -.
DR   EnsemblBacteria; BAC89277; BAC89277; BAC89277.
DR   KEGG; gvi:gll1336; -.
DR   PATRIC; fig|251221.4.peg.1362; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_0_0_3; -.
DR   InParanoid; Q7NKZ0; -.
DR   OMA; KPQQIAR; -.
DR   OrthoDB; 1574817at2; -.
DR   PhylomeDB; Q7NKZ0; -.
DR   Proteomes; UP000000557; Chromosome.
DR   GO; GO:0005829; C:cytosol; IBA:GO_Central.
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..211
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176541"
SQ   SEQUENCE   211 AA;  23955 MW;  ACD58DB39E08956E CRC64;
     MQARRIAREL ALMSIGQMPA DRSRLQAKNL EELVLASVRT LREEANESLQ RACTELRQGH
     NRLEASELTA PTVEAARREV AAAIALAEQA INRVGASLEL PEFVRLADEL QVRAYAFELL
     GAFVREGDNL DKLLDTCMEG WQVERLTRID RDILRLALVE MVELKSVPFR VAIDEAVELA
     KKYSTDTAVR FINGVLRRVV QHLQLEQRPR R