RT Journal Article
SR Electronic
T1 Solubility-Weighted Index: fast and accurate prediction of protein solubility
JF bioRxiv
FD Cold Spring Harbor Laboratory
SP 2020.02.15.951012
DO 10.1101/2020.02.15.951012
A1 Bikash K. Bhandari
A1 Paul P. Gardner
A1 Chun Shen Lim
YR 2020
UL http://biorxiv.org/content/early/2020/03/26/2020.02.15.951012.abstract
AB Motivation Recombinant protein production is a widely used technique in the biotechnology and biomedical industries, yet only a quarter of target proteins are soluble and can therefore be purified.Results We have discovered that global structural flexibility, which can be modeled by normalised B-factors, accurately predicts the solubility of 12,216 recombinant proteins expressed in Escherichia coli. We have optimised B-factors, and derived a new set of values for solubility scoring that further improves prediction accuracy. We call this new predictor the ‘Solubility-Weighted Index’ (SWI). Importantly, SWI outperforms many existing protein solubility prediction tools. Furthermore, we have developed ‘SoDoPE’ (Soluble Domain for Protein Expression), a web interface that allows users to choose a protein region of interest for predicting and maximising both protein expression and solubility.Availability The SoDoPE web server and source code are freely available at https://tisigner.com/sodope and https://github.com/Gardner-BinfLab/TISIGNER-ReactJS, respectively. The code and data for reproducing our analysis can be found at https://github.com/Gardner-BinfLab/SoDoPE_paper2020.