ID   NUSB_SYNJB              Reviewed;         291 AA.
AC   Q2JHC7;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   07-MAR-2006, sequence version 1.
DT   25-MAY-2022, entry version 93.
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=CYB_2099;
OS   Synechococcus sp. (strain JA-2-3B'a(2-13)) (Cyanobacteria bacterium
OS   Yellowstone B-Prime).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus;
OC   unclassified Synechococcus.
OX   NCBI_TaxID=321332;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=JA-2-3B'a(2-13);
RX   PubMed=18059494; DOI=10.1038/ismej.2007.46;
RA   Bhaya D., Grossman A.R., Steunou A.-S., Khuri N., Cohan F.M., Hamamura N.,
RA   Melendrez M.C., Bateson M.M., Ward D.M., Heidelberg J.F.;
RT   "Population level functional diversity in a microbial community revealed by
RT   comparative genomic and metagenomic analyses.";
RL   ISME J. 1:703-713(2007).
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}.
CC   ---------------------------------------------------------------------------
CC   Copyrighted by the UniProt Consortium, see https://www.uniprot.org/terms
CC   Distributed under the Creative Commons Attribution (CC BY 4.0) License
CC   ---------------------------------------------------------------------------
DR   EMBL; CP000240; ABD03045.1; -; Genomic_DNA.
DR   RefSeq; WP_011433680.1; NC_007776.1.
DR   AlphaFoldDB; Q2JHC7; -.
DR   SMR; Q2JHC7; -.
DR   STRING; 321332.CYB_2099; -.
DR   KEGG; cyb:CYB_2099; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_0_0_3; -.
DR   OMA; KPQQIAR; -.
DR   OrthoDB; 1787509at2; -.
DR   Proteomes; UP000001938; 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..291
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265612"
SQ   SEQUENCE   291 AA;  32103 MW;  1A8A01BC336E7C0B CRC64;
     MQPRRIAREL ALLGVNQLPA TAAKLSEKQL EDLLLAAIRA LSEETHETLS TAAAEIQRSD
     RLLHESDPLL LADSDPKEEG GSRSVTLRLH QAQRHLQRLE ITLKEAKVPN PNALRGEVLE
     LIQQVQVALS NAGQALEHLE QRLHSVRHIL DEVVQLSQRA VNRVGVALSM PELLYIAQSQ
     EVRAYALQLL TALRTHKEAI DARLQKALVG WQLQRVGRIE RDILRLAVVE MEILASSPVK
     VAINEAVELA KKYGDPEAAA FVNGVLRRVV DSQMETHRGR DPSLPGSGSG G