ID   NUSB_CHLMU              Reviewed;         164 AA.
AC   Q9PL88;
DT   27-APR-2001, integrated into UniProtKB/Swiss-Prot.
DT   01-OCT-2000, 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=TC_0219;
OS   Chlamydia muridarum (strain MoPn / Nigg).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=243161;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=MoPn / Nigg;
RX   PubMed=10684935; DOI=10.1093/nar/28.6.1397;
RA   Read T.D., Brunham R.C., Shen C., Gill S.R., Heidelberg J.F., White O.,
RA   Hickey E.K., Peterson J.D., Utterback T.R., Berry K.J., Bass S.,
RA   Linher K.D., Weidman J.F., Khouri H.M., Craven B., Bowman C., Dodson R.J.,
RA   Gwinn M.L., Nelson W.C., DeBoy R.T., Kolonay J.F., McClarty G.,
RA   Salzberg S.L., Eisen J.A., Fraser C.M.;
RT   "Genome sequences of Chlamydia trachomatis MoPn and Chlamydia pneumoniae
RT   AR39.";
RL   Nucleic Acids Res. 28:1397-1406(2000).
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, ECO:0000305}.
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DR   EMBL; AE002160; AAF39091.1; -; Genomic_DNA.
DR   PIR; A81727; A81727.
DR   AlphaFoldDB; Q9PL88; -.
DR   SMR; Q9PL88; -.
DR   STRING; 243161.TC_0219; -.
DR   EnsemblBacteria; AAF39091; AAF39091; TC_0219.
DR   KEGG; cmu:TC_0219; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_3_3_0; -.
DR   OMA; MKTYRRQ; -.
DR   Proteomes; UP000000800; 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..164
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176524"
SQ   SEQUENCE   164 AA;  18055 MW;  54A0A192F532FAF8 CRC64;
     MIMSVMASDS ARAVVCTSRP FPKQKLRELV LQALYALEMA PKGEDSLVSL LMTEASVSKK
     NVLYALMFCK AIRANQSELD ALLNATIRTT TLANLTIIER NILRMMLFEH QQNQESSPIP
     TAVLIAETTR LIKKFSYVEG SSLILAVLGS IFDQVAQEPA SMCG