ID   NUSB_CHLPN              Reviewed;         160 AA.
AC   Q9Z6S0; Q9JQD6; Q9K1W6;
DT   30-MAY-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-1999, sequence version 1.
DT   25-MAY-2022, entry version 118.
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=CPn_0989, CP_0866, CPj0989, CpB1026;
OS   Chlamydia pneumoniae (Chlamydophila pneumoniae).
OC   Bacteria; Chlamydiae; Chlamydiales; Chlamydiaceae;
OC   Chlamydia/Chlamydophila group; Chlamydia.
OX   NCBI_TaxID=83558;
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=CWL029;
RX   PubMed=10192388; DOI=10.1038/7716;
RA   Kalman S., Mitchell W.P., Marathe R., Lammel C.J., Fan J., Hyman R.W.,
RA   Olinger L., Grimwood J., Davis R.W., Stephens R.S.;
RT   "Comparative genomes of Chlamydia pneumoniae and C. trachomatis.";
RL   Nat. Genet. 21:385-389(1999).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=AR39;
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).
RN   [3]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=J138;
RX   PubMed=10871362; DOI=10.1093/nar/28.12.2311;
RA   Shirai M., Hirakawa H., Kimoto M., Tabuchi M., Kishi F., Ouchi K.,
RA   Shiba T., Ishii K., Hattori M., Kuhara S., Nakazawa T.;
RT   "Comparison of whole genome sequences of Chlamydia pneumoniae J138 from
RT   Japan and CWL029 from USA.";
RL   Nucleic Acids Res. 28:2311-2314(2000).
RN   [4]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RC   STRAIN=TW-183;
RA   Geng M.M., Schuhmacher A., Muehldorfer I., Bensch K.W., Schaefer K.P.,
RA   Schneider S., Pohl T., Essig A., Marre R., Melchers K.;
RT   "The genome sequence of Chlamydia pneumoniae TW183 and comparison with
RT   other Chlamydia strains based on whole genome sequence analysis.";
RL   Submitted (MAY-2002) 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, ECO:0000305}.
CC   -!- SEQUENCE CAUTION:
CC       Sequence=AAF38655.1; Type=Erroneous initiation; Evidence={ECO:0000305};
CC       Sequence=AAP98955.1; Type=Erroneous initiation; Evidence={ECO:0000305};
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DR   EMBL; AE001363; AAD19126.1; -; Genomic_DNA.
DR   EMBL; AE002161; AAF38655.1; ALT_INIT; Genomic_DNA.
DR   EMBL; BA000008; BAA99196.1; -; Genomic_DNA.
DR   EMBL; AE009440; AAP98955.1; ALT_INIT; Genomic_DNA.
DR   PIR; B81530; B81530.
DR   PIR; B86614; B86614.
DR   PIR; F72010; F72010.
DR   RefSeq; NP_225183.1; NC_000922.1.
DR   RefSeq; WP_010883622.1; NZ_LN847257.1.
DR   AlphaFoldDB; Q9Z6S0; -.
DR   SMR; Q9Z6S0; -.
DR   STRING; 115711.CP_0866; -.
DR   EnsemblBacteria; AAD19126; AAD19126; CPn_0989.
DR   EnsemblBacteria; AAF38655; AAF38655; CP_0866.
DR   GeneID; 45051045; -.
DR   KEGG; cpa:CP_0866; -.
DR   KEGG; cpj:CPj0989; -.
DR   KEGG; cpn:CPn_0989; -.
DR   KEGG; cpt:CpB1026; -.
DR   PATRIC; fig|115713.3.peg.1084; -.
DR   eggNOG; COG0781; Bacteria.
DR   HOGENOM; CLU_087843_3_3_0; -.
DR   OrthoDB; 1574817at2; -.
DR   Proteomes; UP000000583; Chromosome.
DR   Proteomes; UP000000801; 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   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..160
FT                   /note="Transcription antitermination protein NusB"
FT                   /id="PRO_0000176525"
SQ   SEQUENCE   160 AA;  17874 MW;  E74417E56200430A CRC64;
     MATLSPEKFS GSPISISKEF PQQKMREIIL QMLYALDMAP SAEDSLVPLL MSQTAVSQKH
     VLVALNQTKS ILEKSQELDL IIGNALKNKS FDSLDLVEKN VLRLTLFEHF YSPPINKAIL
     IAEAIRLVKK FSYSEACPFI QAILNDIFTD SSLNENSLSI