| Primary Identifier | IPR010006 | Type | Family |
| Short Name | Phage_P4_Psu |
| description | This family contains a number of phage polarity suppression proteins (Psu) (approximately 190 residues long). The Psu protein of Bacteriophage P4causes suppression of transcriptional polarity in Escherichia coli by overcoming Rho termination factor activity []. It has the structure of a golf stick composed of seven helices. Psu is described to have a complicated knotted dimeric conformation. It binds to the hexameric capsomere on the P4 capsid to prevent DNA leakage []. |
