BB0323 and novel virulence determinant BB0238: Borrelia burgdorferi proteins that interact with and stabilize each other and are critical for infectivity.

ABSTRACT: We have shown that Borrelia burgdorferi gene product BB0323 is essential for cell fission and pathogen persistence in vivo. Here we describe characterization of a conserved hypothetical protein annotated as BB0238, which specifically interacts with the N-terminal region of BB0323. We show that BB0238 is a subsurface protein, and similar to BB0323, exists in the periplasm and as a membrane-bound protein. Deletion of bb0238 in infectious B. burgdorferi did not affect microbial growth in vitro or survival in ticks, but the mutant was unable to persist in mice or transmit from ticks--defects that are restored on genetic complementation. Remarkably, BB0238 and BB0323 contribute to mutual posttranslational stability, because deletion of one causes dramatic reduction in the protein level of the o

SUBMITTER: Kariu T 

PROVIDER: S-EPMC4351374 | biostudies-literature | 2015 Feb

REPOSITORIES: biostudies-literature