The founding member of this family is Tt1219 that is a type IV pilin. This protein is likely involved in the formation of polymers that extend from the surface of the bacterial cell and could mediate a wide variety of functions such as adhesion, moti ...
The founding member of this family is Tt1219 that is a type IV pilin. This protein is likely involved in the formation of polymers that extend from the surface of the bacterial cell and could mediate a wide variety of functions such as adhesion, motility and natural competence. This domain is closely related to type II secretion pseudopilins such as EpsJ, GspJ and XcpW. It consists of the canonical type IV pilin structural core comprising an alpha-helix packed against a four-stranded beta-sheet and a variable lobe comprising a beta-sheet that packs the helix on the side [1].
