p300 does not require its acetylase activity to stimulate p73 function.

Abstract excerpt

We previously reported that p73, like p53, utilizes p300 or cAMP-response element-binding protein-binding protein as its coactivator. Here, we extended this work by further examining whether the intrinsic acetylase activity of p300 is necessary for stimulating p73 function. Although p300 acetylated the C-terminal fragment of p73 (amino acids 311-636) in vitro, it was unable to efficiently acetylate the...

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