ID   NUSB_SYNE7              Reviewed;         213 AA.
AC   Q8GIR7; Q31KB8;
DT   22-AUG-2003, integrated into UniProtKB/Swiss-Prot.
DT   01-MAR-2003, sequence version 1.
DT   03-AUG-2022, entry version 95.
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=Synpcc7942_2471; ORFNames=seb0055;
OS   Synechococcus elongatus (strain PCC 7942 / FACHB-805) (Anacystis nidulans
OS   R2).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=1140;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RA   Holtman C.K., Socias T., Mohler B.J., Chen Y., Min H., Golden S.S.,
RA   Youderian P., Sandoval P., Gonzalez A., Salinas I.;
RT   "Synechococcus elongatus PCC7942 genome sequence, cosmid 7H1 and 2E8.";
RL   Submitted (NOV-2002) to the EMBL/GenBank/DDBJ databases.
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=PCC 7942 / FACHB-805;
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., Schmutz J., Larimer F., Land M.,
RA   Kyrpides N., Lykidis A., Richardson P.;
RT   "Complete sequence of chromosome 1 of Synechococcus elongatus PCC 7942.";
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}.
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; U30252; AAN71793.1; -; Genomic_DNA.
DR   EMBL; CP000100; ABB58501.1; -; Genomic_DNA.
DR   RefSeq; WP_011243943.1; NC_007604.1.
DR   AlphaFoldDB; Q8GIR7; -.
DR   SMR; Q8GIR7; -.
DR   STRING; 1140.Synpcc7942_2471; -.
DR   PRIDE; Q8GIR7; -.
DR   EnsemblBacteria; ABB58501; ABB58501; Synpcc7942_2471.
DR   KEGG; syf:Synpcc7942_2471; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_0_0_3; -.
DR   OMA; KPQQIAR; -.
DR   OrthoDB; 1574817at2; -.
DR   BioCyc; SYNEL:SYNPCC7942_2471-MON; -.
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..213
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176597"
SQ   SEQUENCE   213 AA;  23743 MW;  F086FA291A664C6E CRC64;
     MQPRRIAREL ALLSLSQLPA KAEPPSDQML SELLLAATRT LAAEARDHLE AASAELKQSS
     DRLLLSTLGS ADLESSRAML QEVIEMAQAA INRTGNALDL PEWVQLTDRE EVRKFGGRLV
     LQVSNNRERI DRTLNDVMVD WQLHRVPRLD QDILRLAAAE ILFLGTPEQV AINEAVELAN
     RYSDEEGRRF INGVLRRLST MLGKAARAAR PSS