?cl40431: PFM_aerolysin_family Superfamily
pore-forming module of aerolysin-type beta-barrel pore-forming proteins Pore-forming proteins (PFPs) are generally secreted as water-soluble monomers, which upon binding to target lipid membranes, oligomerize and form transmembrane pores harmful to cells. Beta pore-forming proteins (beta-PFPs) form pores by transmembrane beta-barrels. Aerolysin-type beta-PFPs are believed to use an amphipathic beta-hairpin to form the beta-barrel, are found in all kingdoms of life and many are bacterial toxins. In addition to having a role in microbial infection, they have potential as biotechnological sensors and delivery systems. They share a similar monomeric architecture, with a variable membrane-binding domain and a structurally conserved pore-forming region. A significant portion of the monomeric subunit structure is re-organized to form the pore. Oligomers formed by members of the aerolysin family include: hepta- (aerolysin), octa- (Dln1), and nonameric oligomers (lysenin and monalysin). Members of this family includes enterolobin, a cytolytic, inflammatory and insecticidal protein from the Brazilian tree Enterolobium contortisiliquum. |
Jiyao W et al.(2023). "The conserved domain database in 2023.",