Tunable Thermoresponsiveness of Resilin via Coassembly with Rigid Biopolymers

Jasmin L. Whittaker, Naba K. Dutta, Robert Knott, Gordon McPhee, Nicolas H. Voelcker, Chris Elvin, Anita Hill, Namita Roy Choudhury

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16 Citations (Scopus)

Abstract

The ability to tune the thermoresponsiveness of recombinant resilin protein, Rec1-resilin, through a facile coassembly system was investigated in this study. The effects of change in conformation and morphology with time and the responsive behavior of Rec1-resilin in solution were studied in response to the addition of a rigid model polypeptide (poly-l-proline) or a hydrophobic rigid protein (Bombyx mori silk fibroin). It was observed that by inducing more ordered conformations and increasing the hydrophobicity the lower critical solution temperature (LCST) of the system was tuned to lower values. Time and temperature were found to be critical parameters in controlling the coassembly behavior of Rec1-resilin in both the model polypeptide and more complex protein systems. Such unique properties are useful for a wide range of applications, including drug delivery and soft tissue engineering applications.

Original languageEnglish
Pages (from-to)8882-8891
Number of pages10
JournalLangmuir
Volume31
Issue number32
DOIs
Publication statusPublished - 18 Aug 2015
Externally publishedYes

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