Using NMR Chemical Shifts to Determine Residue-specific Secondary Structure Populations for Intrinsically Disordered Proteins

Document Type

Book Chapter

Publication Date

2018

Keywords

Intrinsically Disordered Protein, Intrinsically Disordered Regions, Chemical Shift, Residual Secondary Structure, Transient Secondary Structure, Coupled Folding and Binding, P53 Tumor Suppressor, Myeloblastosis Protein

Digital Object Identifier (DOI)

https://doi.org/10.1016/bs.mie.2018.09.011

Abstract

Protein disorder is a pervasive phenomenon in biology and a natural consequence of polymer evolution that facilitates cell signaling by organizing sites for posttranslational modifications and protein–protein interactions into arrays of short linear motifs that can be rearranged by RNA splicing. Disordered proteins are missing the long-range nonpolar interactions that form tertiary structures, but they often contain regions with residual secondary structure that are stabilized by protein binding. NMR spectroscopy is uniquely suited to detect residual secondary structure in a disordered protein and it can provide atomic resolution data on the structure and dynamics of disordered protein interaction sites. Here we describe how backbone chemical shifts are used for assigning residual secondary structure in disordered proteins and discuss some of the tools available for estimating secondary structure populations with a focus on disordered proteins containing different levels of alpha helical secondary structure which are stabilized by protein binding.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

Using NMR Chemical Shifts to Determine Residue-specific Secondary Structure Populations for Intrinsically Disordered Proteins, in E. Rhodes (Ed.), Methods in Enzymology, Academic Press, p. 101-136

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