Trans-targeting of protease substrates by conformationally activating a regulable ClpX-recognition motif.

Abstract excerpt

Conversion of bacteriophage Mu repressor to ClpXP-sensitive form correlates with induced local flexibility at the ClpX recognition motif located at the C-terminal end. Changing the C-terminal valine to an alanine (RepV196A) caused the degradation tag to be constitutively active like that of mutant repressors called Vir, which have a dominant ClpXP-sensitive conformation. However, unlike Vir, RepV196A was unable...

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