PUBLICATION

Community-Wide Experimental Evaluation of the PROSS Stability-Design Method

Authors
Peleg, Y., Vincentelli, R., Collins, B.M., Chen, K.E., Livingstone, E.K., Weeratunga, S., Leneva, N., Guo, Q., Remans, K., Perez, K., Bjerga, G.E.K., Larsen, Ø., Vaněk, O., Skořepa, O., Jacquemin, S., Poterszman, A., Kjær, S., Christodoulou, E., Albeck, S., Dym, O., Ainbinder, E., Unger, T., Schuetz, A., Matthes, S., Bader, M., de Marco, A., Storici, P., Semrau, M.S., Stolt-Bergner, P., Aigner, C., Suppmann, S., Goldenzweig, A., Fleishman, S.J.
ID
ZDB-PUB-210825-10
Date
2021
Source
Journal of molecular biology   433: 166964 (Journal)
Registered Authors
Keywords
PROSS, Protein expression, Protein stability, Recombinant proteins, Rosetta
MeSH Terms
  • Algorithms*
  • Animals
  • Escherichia coli/metabolism
  • HEK293 Cells
  • High-Throughput Screening Assays
  • Humans
  • Models, Molecular
  • Protein Stability*
  • Proteins/chemistry
  • Proteins/metabolism
  • Solubility
  • Temperature
  • Zebrafish
PubMed
33781758 Full text @ J. Mol. Biol.
Abstract
Recent years have seen a dramatic improvement in protein-design methodology. Nevertheless, most methods demand expert intervention, limiting their widespread adoption. By contrast, the PROSS algorithm for improving protein stability and heterologous expression levels has been successfully applied to a range of challenging enzymes and binding proteins. Here, we benchmark the application of PROSS as a stand-alone tool for protein scientists with no or limited experience in modeling. Twelve laboratories from the Protein Production and Purification Partnership in Europe (P4EU) challenged the PROSS algorithm with 14 unrelated protein targets without support from the PROSS developers. For each target, up to six designs were evaluated for expression levels and in some cases, for thermal stability and activity. In nine targets, designs exhibited increased heterologous expression levels either in prokaryotic and/or eukaryotic expression systems under experimental conditions that were tailored for each target protein. Furthermore, we observed increased thermal stability in nine of ten tested targets. In two prime examples, the human Stem Cell Factor (hSCF) and human Cadherin-Like Domain (CLD12) from the RET receptor, the wild type proteins were not expressible as soluble proteins in E. coli, yet the PROSS designs exhibited high expression levels in E. coli and HEK293 cells, respectively, and improved thermal stability. We conclude that PROSS may improve stability and expressibility in diverse cases, and that improvement typically requires target-specific expression conditions. This study demonstrates the strengths of community-wide efforts to probe the generality of new methods and recommends areas for future research to advance practically useful algorithms for protein science.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping