Disorder and Residual Helicity Alter p53-Mdm2 Binding Affinity and Signaling in Cells

Document Type

Article

Publication Date

2014

Keywords

Biochemistry, Cancer, Cell Signalling, NMR Spectroscopy

Digital Object Identifier (DOI)

https://doi.org/10.1038/nchembio.1668

Abstract

Levels of residual structure in disordered interaction domains determine in vitro binding affinities, but whether they exert similar roles in cells is not known. Here, we show that increasing residual p53 helicity results in stronger Mdm2 binding, altered p53 dynamics, impaired target gene expression and failure to induce cell cycle arrest upon DNA damage. These results establish that residual structure is an important determinant of signaling fidelity in cells.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Nature Chemical Biology, v. 10, p. 1000-1002

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