Article
A mutagenic analysis of the RNase mechanism of the bacterial Kid toxin by mass spectrometry.
The FEBS journal - 1 Sept 2009
Diago-Navarro Elizabeth, Kamphuis Monique B, Boelens Rolf, Barendregt Arjan, Heck Albert J, van den Heuvel Robert H, Díaz-Orejas Ramón
Abstract excerpt
Kid, the toxin of the parD (kis, kid) maintenance system of plasmid R1, is an endoribonuclease that preferentially cleaves RNA at the 5' of A in the core sequence 5'-UA(A/C)-3'. A model of the Kid toxin interacting with the uncleavable mimetic 5'-AdUACA-3' is available. To evaluate this model, a significant collection of mutants in some of the key residues proposed to be involved in RNA binding (T46, A55, T69 and...
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