Bayesian Analysis of MicroScale Thermophoresis Data to Quantify Affinity of Protein: Protein Interactions with Human Survivin
Journal article, 2017

A biomolecular ensemble exhibits different responses to a temperature gradient depending on its diffusion properties. MicroScale Thermophoresis technique exploits this effect and is becoming a popular technique for analyzing interactions of biomolecules in solution. When comparing affinities of related compounds, the reliability of the determined thermodynamic parameters often comes into question. The thermophoresis binding curves can be assessed by Bayesian inference, which provides a probability distribution for the dissociation constant of the interacting partners. By applying Bayesian machine learning principles, binding curves can be autonomously analyzed without manual intervention and without introducing subjective bias by outlier rejection. We demonstrate the Bayesian inference protocol on the known survivin: borealin interaction and on the putative protein-protein interactions between human survivin and two members of the human Shugoshin-like family (hSgol1 and hSgol2). These interactions were identified in a protein microarray binding assay against survivin and confirmed by MicroScale Thermophoresis.

recognition

chromosomal passenger complex

mitosis

arthritis

shugoshin

reveals

regulator

molecular interaction

borealin

localization

Author

Maria-Jose Garcia-Bonete

University of Gothenburg

Maja Jensen

University of Gothenburg

Christian V. Recktenwald

University of Gothenburg

Sandra Rocha

Chalmers, Biology and Biological Engineering, Chemical Biology

Volker Stadler

PEPperPRINT GmbH

Maria Bokarewa

University of Gothenburg

Gergely Katona

University of Gothenburg

Scientific Reports

2045-2322 (ISSN)

Vol. 7 1 Art. no. 16816- 16816

Subject Categories

Biological Sciences

DOI

10.1038/s41598-017-17071-0

PubMed

29196723

More information

Latest update

11/22/2019