ID   REGQ_BP82               Reviewed;         229 AA.
AC   P13870;
DT   01-JAN-1990, integrated into UniProtKB/Swiss-Prot.
DT   01-JAN-1990, sequence version 1.
DT   25-MAY-2022, entry version 61.
DE   RecName: Full=Antitermination protein Q;
GN   Name=Q;
OS   Enterobacteria phage 82 (Bacteriophage 82).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Siphoviridae; Lambdavirus; unclassified Lambdavirus.
OX   NCBI_TaxID=10705;
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=3624233; DOI=10.1016/s0021-9258(18)60870-1;
RA   Goliger J.A., Roberts J.W.;
RT   "Bacteriophage 82 gene Q and Q protein. Sequence, overproduction, and
RT   activity as a transcription antiterminator in vitro.";
RL   J. Biol. Chem. 262:11721-11725(1987).
RN   [2]
RP   NUCLEOTIDE SEQUENCE [GENOMIC DNA].
RX   PubMed=8648624; DOI=10.1006/jmbi.1996.0185;
RA   Mahdi A.A., Sharples G.J., Mandal T.N., Lloyd R.G.;
RT   "Holliday junction resolvases encoded by homologous rusA genes in
RT   Escherichia coli K-12 and phage 82.";
RL   J. Mol. Biol. 257:561-573(1996).
CC   -!- FUNCTION: Positively regulates expression of the phage late gene
CC       operons. Bacterial host RNA polymerase modified by antitermination
CC       proteins transcribes through termination sites that otherwise prevent
CC       expression of the regulated genes.
CC   -!- SIMILARITY: Belongs to the phage antitermination Q type 1 family.
CC       {ECO:0000305}.
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DR   EMBL; J02803; AAA32298.1; -; Genomic_DNA.
DR   EMBL; X92588; CAA63332.1; -; Genomic_DNA.
DR   PIR; A29791; PQBP82.
DR   SMR; P13870; -.
DR   GO; GO:0003677; F:DNA binding; IEA:UniProtKB-KW.
DR   GO; GO:0006353; P:DNA-templated transcription, termination; IEA:UniProtKB-KW.
DR   InterPro; IPR010455; Phage_82_GpQ.
DR   Pfam; PF06323; Phage_antiter_Q; 1.
DR   PIRSF; PIRSF004417; Anti_term_Q; 1.
PE   3: Inferred from homology;
KW   DNA-binding; Transcription; Transcription regulation;
KW   Transcription termination.
FT   CHAIN           1..229
FT                   /note="Antitermination protein Q"
FT                   /id="PRO_0000073886"
FT   DNA_BIND        14..32
FT                   /evidence="ECO:0000255"
SQ   SEQUENCE   229 AA;  26400 MW;  E6BDABE818498667 CRC64;
     MNTQYLQYVR EQLIVATADL SGATKGQLEA WLEHAQFDTG TYKRKKPRIL DEVTGRMITL
     DNPPISGKQS YAKGSSIALV SQVEFSTSSW RRAVLSLEEH QKAWLLWSYS ESVRWEHQVT
     ITQWAWSEFK TLLGTRKIAG KTLERLKKLI WLAAQDVKNE LAGRKTYEYQ ELASLVGVTS
     KNWSETFTER WVAMKHIFLQ LDSEALLLLT RTRSKQKATF SQQNIAKLD