Requirements for surface expression and function of adhesin P1 from Streptococcus mutans.

ABSTRACT: In this report, we define requirements for the successful translocation and functional maturation of the adhesin P1 of Streptococcus mutans. Conformational epitopes recognized by anti-P1 monoclonal antibodies (MAbs) were further characterized, thus facilitating the use of particular MAbs as tools to monitor the locations of various forms of the protein. We show that correct localization of P1 is dependent on structural features of the molecule itself, including a requisite A region-P region intramolecular interaction that occurs within the cell prior to secretion. P1 also was shown to be affected by several members of the protein-folding-secretion-turnover apparatus. It does not achieve a fully functional form in the absence of the trigger factor PPIase homolog RopA, and its translocation

SUBMITTER: Crowley PJ 

PROVIDER: S-EPMC2423087 | biostudies-literature | 2008 Jun

REPOSITORIES: biostudies-literature