SpbR overproduction reveals the importance of proteolytic degradation for cell pole development and chromosome segregation in Caulobacter crescentus

What is it about?

In this study, we perform the first in vivo characterization of SpbR, a protein that is known to be a substrate of the ClpXP protease in Caulobacter crescentus. Our results show that SpbR overproduction inhibits the accumulation of the polar organizing protein PopZ to the new pole and causes defects in chromosome segregation, indicating a new role for ClpXP and the adaptor protein RcdA in regulating these key developmental processes.

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