ID   REGQ_BPH19              Reviewed;         144 AA.
AC   O48429;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-JUN-1998, sequence version 1.
DT   12-AUG-2020, entry version 54.
DE   RecName: Full=Antitermination protein Q;
GN   Name=Q;
OS   Enterobacteria phage H19B (Bacteriophage H19B).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Siphoviridae; Lambdavirus; unclassified Lambdavirus.
OX   NCBI_TaxID=69932;
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=9680214; DOI=10.1046/j.1365-2958.1998.00890.x;
RA   Neely M.N., Friedman D.I.;
RT   "Functional and genetic analysis of regulatory regions of coliphage H-19B:
RT   location of shiga-like toxin and lysis genes suggest a role for phage
RT   functions in toxin release.";
RL   Mol. Microbiol. 28:1255-1267(1998).
CC   -!- FUNCTION: Positively regulates expression of some phage genes.
CC       Bacterial host RNA polymerase modified by antitermination proteins
CC       transcribes through termination sites that otherwise prevent expression
CC       of the regulated genes (By similarity). {ECO:0000250}.
CC   -!- SIMILARITY: Belongs to the phage antitermination Q type 1 family.
CC       {ECO:0000305}.
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DR   EMBL; AF034975; AAD04655.1; -; Genomic_DNA.
DR   SMR; O48429; -.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0060567; P:negative regulation of DNA-templated transcription, termination; IEA:InterPro.
DR   GO; GO:0031564; P:transcription antitermination; IEA:UniProtKB-KW.
DR   InterPro; IPR010534; Phage_933W_GpQ.
DR   Pfam; PF06530; Phage_antitermQ; 1.
PE   3: Inferred from homology;
KW   DNA-binding; Transcription; Transcription antitermination;
KW   Transcription regulation.
FT   CHAIN           1..144
FT                   /note="Antitermination protein Q"
FT                   /id="PRO_0000073889"
SQ   SEQUENCE   144 AA;  16420 MW;  637A24995DD65A95 CRC64;
     MRDIRQVLER WGAWAANNHE DVTWSPIAAG FKGLIPEKVK SRPQCCDDDA MIICGCMARL
     NRNNSDLHDL LVDYYVLGET FMALARKHGC SDTCIGKRLH KAEGIVEGML MMLGVRLEMD
     RYVERELPGG RTSVFYQRKN SLRS