Family

Bacteriophage 82, GpQ (IPR010455)

Short name: Phage_82_GpQ

Family relationships

None.

Description

This entry is represented by Bacteriophage 82, GpQ. The characteristics of the protein distribution suggest prophage matches in addition to the phage matches.

This family consists of several phage antitermination protein Q and related bacterial sequences. Phage 82 gene Q encodes a phage-specific positive regulator of late gene expression, thought, by analogy to the corresponding gene of phage lambda, to be a transcription antiterminator. GpQ positively regulates expression of the phage late gene operons. Bacterial host RNA polymerase modified by antitermination proteins transcribes through termination sites that otherwise prevent expression of the regulated genes [PMID: 3624233].

Contributing signatures

Signatures from InterPro member databases are used to construct an entry.
Pfam
PIRSF
ProDom