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Protein Misfolding Diseases pp 255–264Cite as

Thermal Shift and Stability Assays of Disease-Related Misfolded Proteins Using Differential Scanning Fluorimetry

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Part of the book series: Methods in Molecular Biology ((MIMB,volume 1873))

Abstract

Systematic identification of buffer formulations and small molecule chaperones that improve the expression, stability, and storage of proteins with therapeutic interest has gained enormous importance in biochemical research as well as in biotechnology and biomedical applications. In particular, the biochemical characterization of disease-related proteins and their genetic variants that result in misfolding requires systematic determination of protein stability, screening of optimal buffer conditions for biophysical and structural studies, and in some cases, the identification of small molecule chaperones with the potential to ameliorate folding defects. Among the several techniques available, differential scanning fluorimetry (DSF) is currently an extensively employed screening and analysis method for thermal shift and protein stability assays. Here we describe a step-by-step generic protocol for fast characterization of protein thermal stability and analysis of stabilization in thermal-shift assays by additives, ligands and chemical chaperones using β-oxidation mitochondrial dehydrogenases as model. These enzymes are associated to inborn errors of metabolism caused by mutant variants with folding and stability defects for which we previously established folding correction afforded by their cognate cofactors and substrates. With this example we thus illustrate the potential applications of the method in screening small molecule folding correctors among metabolites, ligands, cofactors or candidate drugs with therapeutic potential in protein folding diseases.

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Acknowledgments

This work was supported by the Fundação para a Ciência e Tecnologia (FCT/MCTES, Portugal) through fellowships to T.G.L. (SFRH/BD/89690/2012) and B.J.H. (SFRH/BPD/74475/2010) and a grant PTDC/BBB-BQB/5366/2014 (to B.J.H.) and PTDC/NEU-NMC/2138/2014 (to C.M.G.). The Gomes laboratory is partly supported by grant UID/MULTI/04046/2013 from FCT/MCTES/PIDDAC (to BioISI).

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Authors and Affiliations

  1. BioISI – Biosystems and Integrative Sciences Institute, Faculty of Sciences University of Lisbon, Lisbon, Portugal

    Tânia G. Lucas, Cláudio M. Gomes & Bárbara J. Henriques

  2. Department of Chemistry and Biochemistry, Faculty of Sciences University of Lisbon, Lisbon, Portugal

    Tânia G. Lucas, Cláudio M. Gomes & Bárbara J. Henriques

Authors
  1. Tânia G. Lucas
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  2. Cláudio M. Gomes
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  3. Bárbara J. Henriques
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Corresponding author

Correspondence to Cláudio M. Gomes .

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Editors and Affiliations

  1. BioISI – Biosystems and Integrative Sciences Institute, Faculty of Sciences University of Lisbon, Lisbon, Portugal

    Cláudio M. Gomes

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Lucas, T.G., Gomes, C.M., Henriques, B.J. (2019). Thermal Shift and Stability Assays of Disease-Related Misfolded Proteins Using Differential Scanning Fluorimetry. In: Gomes, C. (eds) Protein Misfolding Diseases. Methods in Molecular Biology, vol 1873. Humana Press, New York, NY. https://doi.org/10.1007/978-1-4939-8820-4_16

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  • DOI: https://doi.org/10.1007/978-1-4939-8820-4_16

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  • Publisher Name: Humana Press, New York, NY

  • Print ISBN: 978-1-4939-8819-8

  • Online ISBN: 978-1-4939-8820-4

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