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| Home > Publications database > Nanobody stability engineering by employing the ΔTm shift; a comparison with apparent rate constants of heat-induced aggregation. |
| Home > Publications database > Nanobody stability engineering by employing the ΔTm shift; a comparison with apparent rate constants of heat-induced aggregation. |
| Journal Article | DKFZ-2019-01905 |
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2019
Oxford Univ. Press
Oxford
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Please use a persistent id in citations: doi:10.1093/protein/gzz017
Abstract: The antigen-binding domains of camelid heavy-chain antibodies, also called nanobodies, gained strong attention because of their unique functional and biophysical properties. They gave rise to an entire spectrum of applications in biotechnology, research and medicine. Despite several reports about reversibly refolding nanobodies, protein aggregation plays a major role in nanobody thermoresistance, asking for strategies to engineer their refolding behavior. Here, we use measurements of nanobody aggregation kinetics to validate structural features in the nanobody fold that are suppressing heat-induced nanobody aggregation. Furthermore, the kinetic measurements yielded a detailed insight into the concept of the ΔTm shift, a metric for protein aggregation propensities obtained from differential scanning fluorimetry measurements. By relating the equilibrium measurements of the ΔTm shift to the kinetic measurements of heat-induced nanobody aggregation, a distinct relationship could be identified that allows a prediction of nanobody aggregation rates from a simple equilibrium measurement of ΔTm.
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