Structure of the competence pilus major pilin ComGC in Streptococcus pneumoniae.

ABSTRACT: Type IV pili are important virulence factors on the surface of many pathogenic bacteria and have been implicated in a wide range of diverse functions, including attachment, twitching motility, biofilm formation, and horizontal gene transfer. The respiratory pathogen Streptococcus pneumoniae deploys type IV pili to take up DNA during transformation. These "competence pili" are composed of the major pilin protein ComGC and exclusively assembled during bacterial competence, but their biogenesis remains unclear. Here, we report the high resolution NMR structure of N-terminal truncated ComGC revealing a highly flexible and structurally divergent type IV pilin. It consists of only three α-helical segments forming a well-defined electronegative cavity and confined electronegative and hydro

SUBMITTER: Muschiol S 

PROVIDER: S-EPMC5572924 | biostudies-literature | 2017 Aug

REPOSITORIES: biostudies-literature