Length-dependent Compaction of Intrinsically Disordered Proteins

Document Type

Article

Publication Date

2012

Keywords

Compaction Index, Hydrodynamic Radius, Induced Folding, Functional Misfolding, Structural Disorder, Sic1

Digital Object Identifier (DOI)

https://doi.org/10.1016/j.febslet.2011.11.026

Abstract

This work investigates the effect of chain length on the degree of compaction of intrinsically disordered proteins (IDPs). The three main IDP types, native coil (NC), pre-molten globule (PMG) and molten globule (MG), are compared by means of a compaction index (CI) normalized for chain length. The results point out a strong variability of compactness as a function of chain length within each group, with larger proteins populating more compact states. While qualitative sequence features are responsible for the main differences among groups, chain length seems to have an unspecific effect modulating the extent of compaction within each group. The results are consistent with a cooperative character of the weak interactions responsible for chain collapse.

Was this content written or created while at USF?

Yes

Citation / Publisher Attribution

FEBS Letters, v. 586, issue 1, p. 70-73

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