ID   NUSB_SYNP6              Reviewed;         213 AA.
AC   Q5N1J7;
DT   12-DEC-2006, integrated into UniProtKB/Swiss-Prot.
DT   01-FEB-2005, sequence version 1.
DT   25-MAY-2022, entry version 91.
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=syc1633_c;
OS   Synechococcus sp. (strain ATCC 27144 / PCC 6301 / SAUG 1402/1) (Anacystis
OS   nidulans).
OC   Bacteria; Cyanobacteria; Synechococcales; Synechococcaceae; Synechococcus.
OX   NCBI_TaxID=269084;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=ATCC 27144 / PCC 6301 / SAUG 1402/1;
RX   PubMed=17211581; DOI=10.1007/s11120-006-9122-4;
RA   Sugita C., Ogata K., Shikata M., Jikuya H., Takano J., Furumichi M.,
RA   Kanehisa M., Omata T., Sugiura M., Sugita M.;
RT   "Complete nucleotide sequence of the freshwater unicellular cyanobacterium
RT   Synechococcus elongatus PCC 6301 chromosome: gene content and
RT   organization.";
RL   Photosyn. Res. 93:55-67(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}.
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DR   EMBL; AP008231; BAD79823.1; -; Genomic_DNA.
DR   RefSeq; WP_011243943.1; NC_006576.1.
DR   AlphaFoldDB; Q5N1J7; -.
DR   SMR; Q5N1J7; -.
DR   STRING; 269084.syc1633_c; -.
DR   EnsemblBacteria; BAD79823; BAD79823; syc1633_c.
DR   KEGG; syc:syc1633_c; -.
DR   eggNOG; COG0781; Bacteria.
DR   OMA; KPQQIAR; -.
DR   Proteomes; UP000001175; 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   RNA-binding; Transcription; Transcription antitermination;
KW   Transcription regulation.
FT   CHAIN           1..213
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000265611"
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