The molecular chaperone Hsp90 is an ATP-dependent machinery, which is regulated by different co-factors and post-translational modifications. This regulation is characterized for Aha1, an unique activator of Hsp90. Another type of the Hsp90 regulation in vivo is based on the S-nitrosylation of a conserved cysteine residue. The impact on the activity of Hsp90 by the modification of this specific amino acid side chain is characterized for the structure-function relationship of Hsp90. The regulation of Hsp90 affects the activity of its substrates. Here, a detailed binding model for the interaction of Hsp90 with the tumor suppressor protein p53 is proposed, and additionally, the structure-function relationship of p53 defined by inter-molecular interactions is characterized.
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The molecular chaperone Hsp90 is an ATP-dependent machinery, which is regulated by different co-factors and post-translational modifications. This regulation is characterized for Aha1, an unique activator of Hsp90. Another type of the Hsp90 regulation in vivo is based on the S-nitrosylation of a conserved cysteine residue. The impact on the activity of Hsp90 by the modification of this specific amino acid side chain is characterized for the structure-function relationship of Hsp90. The regulatio...
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