The pili are polar flexible filaments of about 5.4 nanometers diameter and 2.5 micrometers average length; they consist of only a single polypeptide chain arranged in a helical configuration of five subunits per turn in the assembled pilus.
The pili are polar flexible filaments of about 5.4 nanometers diameter and 2.5 micrometers average length; they consist of only a single polypeptide chain arranged in a helical configuration of five subunits per turn in the assembled pilus.