Evidence map›Paper›PMID 28196882›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2017

Trade-offs between enzyme fitness and solubility illuminated by deep mutational scanning.

Justin R Klesmith, John-Paul Bacik, Emily E Wrenbeck, Ryszard Michalczyk, Timothy A Whitehead

Abstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 97 papers.

0numbers the graph read from it
0cells of the map it votes in
97citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

97 citing papers in PubMed.

  1. Review
  2. Article
  3. Article
  4. Advances in Machine Learning Models for Predicting Enzyme Kinetic Parameters.Journal of chemical information and modeling · 2026
    Review
  5. Computational redesign of a thermostable T7 RNA polymerase.Protein engineering, design & selection : PEDS · 2026
    Article
  6. Article
  7. Review
  8. Computational redesign of a thermostable T7 RNA polymerase.bioRxiv : the preprint server for biology · 2025
    Article
  9. Amino acid substitutions at rheostat positions in the NaProtein science : a publication of the Protein Society · 2025
    Article
  10. Article
  11. Review
  12. Article
  13. Dissecting the effects of single amino acid substitutions in SARS-CoV-2 Mpro.Protein science : a publication of the Protein Society · 2025
    Article
  14. Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Article
  20. Article

37 more citing papers are in PubMed but not listed here.

4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors.

Justin R KlesmithDepartment of Biochemistry and Molecular Biology, Michigan State University, East Lansing, MI 48824.ORCID 0000-0003-2908-9355
John-Paul BacikBioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545.
Emily E WrenbeckDepartment of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824.
Ryszard MichalczykBioscience Division, Los Alamos National Laboratory, Los Alamos, NM 87545.
Timothy A WhiteheadDepartment of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824; taw@egr.msu.edu.

Funding

X-ray Absorption Spectroscopy (XAS) pp.711-759P41GM103393 · NIGMS · STANFORD UNIVERSITY · PI HODGSON, KEITH O · 2012 to 2019
$30.6M
Plant Biotechnology for Health and SustainabilityT32GM110523 · NIGMS · MICHIGAN STATE UNIVERSITY · PI LAST, ROBERT LOUIS · 2014 to 2023
$2.2M
NIGMS NIH HHS P41 GM103393NIGMS NIH HHS T32 GM110523
6 · The paper itself

Abstract

Proteins are marginally stable, and an understanding of the sequence determinants for improved protein solubility is highly desired. For enzymes, it is well known that many mutations that increase protein solubility decrease catalytic activity. These competing effects frustrate efforts to design and engineer stable, active enzymes without laborious high-throughput activity screens. To address the trade-off between enzyme solubility and activity, we performed deep mutational scanning using two different screens/selections that purport to gauge protein solubility for two full-length enzymes. We assayed a TEM-1 beta-lactamase variant and levoglucosan kinase (LGK) using yeast surface display (YSD) screening and a twin-arginine translocation pathway selection. We then compared these scans with published experimental fitness landscapes. Results from the YSD screen could explain 37% of the variance in the fitness landscapes for one enzyme. Five percent to 10% of all single missense mutations improve solubility, matching theoretical predictions of global protein stability. For a given solubility-enhancing mutation, the probability that it would retain wild-type fitness was correlated with evolutionary conservation and distance to active site, and anticorrelated with contact number. Hybrid classification models were developed that could predict solubility-enhancing mutations that maintain wild-type fitness with an accuracy of 90%. The downside of using such classification models is the removal of rare mutations that improve both fitness and solubility. To reveal the biophysical basis of enhanced protein solubility and function, we determined the crystallographic structure of one such LGK mutant. Beyond fundamental insights into trade-offs between stability and activity, these results have potential biotechnological applications.

Indexed as

High-Throughput Screening AssaysAmino Acid SubstitutionAspergillus nigerbeta-LactamasesBinding SitesEscherichia coliGene ExpressionGene Products, tatHIVModels, MolecularMutationPeptide LibraryPhosphotransferasesProtein BindingProtein Conformation, alpha-HelicalProtein Conformation, beta-Strandbeta-Lactamasesbeta-lactamase TEM-1Gene Products, tatlevoglucosan kinase, Aspergillus nigerPeptide LibraryPhosphotransferasesdeep mutational scanningfitness landscapeshigh-throughput screeningprotein solubilityyeast surface display

Identifiers

PMID28196882
PMCPMC5338495

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.