ID   REGQ_BPAPS              Reviewed;         148 AA.
AC   Q9T1U3;
DT   01-DEC-2000, integrated into UniProtKB/Swiss-Prot.
DT   01-MAY-2000, sequence version 1.
DT   25-MAY-2022, entry version 69.
DE   RecName: Full=Probable antitermination protein Q;
DE   AltName: Full=P5;
GN   Name=5;
OS   Acyrthosiphon pisum secondary endosymbiont phage 1 (Bacteriophage APSE-1).
OC   Viruses; Duplodnaviria; Heunggongvirae; Uroviricota; Caudoviricetes;
OC   Caudovirales; Podoviridae; Sendosyvirus.
OX   NCBI_TaxID=2682836;
OH   NCBI_TaxID=562; Escherichia coli.
RN   [1]
RP   NUCLEOTIDE SEQUENCE [LARGE SCALE GENOMIC DNA].
RX   PubMed=10489345; DOI=10.1006/viro.1999.9902;
RA   van der Wilk F., Dullemans A.M., Verbeek M., van den Heuvel J.F.J.M.;
RT   "Isolation and characterization of APSE-1, a bacteriophage infecting the
RT   secondary endosymbiont of acyrthosiphon pisum.";
RL   Virology 262:104-113(1999).
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; AF157835; AAF03999.1; -; Genomic_DNA.
DR   RefSeq; NP_050966.1; NC_000935.1.
DR   SMR; Q9T1U3; -.
DR   GeneID; 1262299; -.
DR   KEGG; vg:1262299; -.
DR   Proteomes; UP000000853; Genome.
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; Reference proteome; Transcription;
KW   Transcription antitermination; Transcription regulation.
FT   CHAIN           1..148
FT                   /note="Probable antitermination protein Q"
FT                   /id="PRO_0000073890"
SQ   SEQUENCE   148 AA;  16890 MW;  93F1D758A8505170 CRC64;
     MRRDIQQVLE RWGTWARDNN TGIDWSPIAA GFKGLLPLRP SMRPSCSDED GRIIDNCVSQ
     LQQVRQPEEL SLIIAYYVKG YSKRAIARRR RVDEGLIRAK LLIAEGFIDG CLSLLAVRLD
     MDPEVKMYSP QKSGKRISAV RKKFVNVL