Evidence map›Paper›PMID 20334347›Full record

ArticleACS chemical biology2010

Rescue of glaucoma-causing mutant myocilin thermal stability by chemical chaperones.

J Nicole Burns, Susan D Orwig, Julia L Harris, J Derrick Watkins, Douglas Vollrath, Raquel L Lieberman

Abstract read
In one paragraph

Article in ACS chemical biology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 43 papers.

0numbers the graph read from it
0cells of the map it votes in
43citing papers in PubMed
5.4field-weighted citation impact, top 4% of its field
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

43 citing papers in PubMed, 57 citations in OpenAlex.

  1. Article
  2. Protein misfolding and mitochondrial dysfunction in glaucoma.Frontiers in cell and developmental biology · 2025
    Review
  3. Article
  4. Review
  5. Article
  6. Article
  7. Calcium dysregulation potentiates wild-type myocilin misfolding: implications for glaucoma pathogenesis.Journal of biological inorganic chemistry : JBIC : a publication of the Society of Biological Inorganic Chemistry · 2022
    Article
  8. Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Mendelian genes in primary open angle glaucoma.Experimental eye research · 2019
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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

6 authors at 2 institutions in 1 country.

J Nicole BurnsGeorgia Institute of Technology, Atlanta, 30332, USA.
Susan D Orwig
Julia L Harris
J Derrick Watkins
Douglas Vollrath
Raquel L Lieberman
Georgia Institute of Technology · USStanford University · US

Funding

Request for Supplement to Promote Diversity in Health Related ResearchR01EY021205 · NEI · GEORGIA INSTITUTE OF TECHNOLOGY · PI Raquel L Lieberman · 2011 to 2026
$6.8M
MOLECULAR GENETICS OF OPEN ANGLE GLAUCOMAR01EY011405 · NEI · STANFORD UNIVERSITY · PI VOLLRATH, DOUGLAS E. · 1996 to 2011
$4.6M
NEI NIH HHS EY001405NEI NIH HHS R01 EY011405NEI NIH HHS R01 EY021205
6 · The paper itself

Abstract

Mutations in myocilin cause an inherited form of open angle glaucoma, a prevalent neurodegenerative disorder associated with increased intraocular pressure. Myocilin forms part of the trabecular meshwork extracellular matrix presumed to regulate intraocular pressure. Missense mutations, clustered in the olfactomedin (OLF) domain of myocilin, render the protein prone to aggregation in the endoplasmic reticulum of trabecular meshwork cells, causing cell dysfunction and death. Cellular studies have demonstrated temperature-sensitive secretion of myocilin mutants, but difficulties in expression and purification have precluded biophysical characterization of wild-type (wt) myocilin and disease-causing mutants in vitro. We have overcome these limitations by purifying wt and select glaucoma-causing mutant (D380A, I477N, I477S, K423E) forms of the OLF domain (228-504) fused to a maltose binding protein (MBP) from E. coli . Monomeric fusion proteins can be isolated in solution. To determine the relative stability of wt and mutant OLF domains, we developed a fluorescence thermal stability assay without removal of MBP and provide the first direct evidence that mutated OLF is folded but less thermally stable than wt. We tested the ability of seven chemical chaperones to stabilize mutant myocilin. Only sarcosine and trimethylamine N-oxide were capable of shifting the melting temperature of all mutants tested to near that of wt OLF. Our work lays the foundation for the identification of tailored small molecules capable of stabilizing mutant myocilin and promoting secretion to the extracellular matrix, to better control intraocular pressure and to ultimately delay the onset of myocilin glaucoma.

Indexed as

Mutant ProteinsCytoskeletal ProteinsEscherichia coliEscherichia coli ProteinsExtracellular Matrix ProteinsEye ProteinsGlaucoma, Open-AngleGlycoproteinsHumansMethylaminesMutation, MissenseMyocilinProtein FoldingProtein StabilitySarcosineTransition TemperatureCytoskeletal ProteinsEscherichia coli ProteinsExtracellular Matrix ProteinsEye ProteinsGlycoproteinsMethylaminesMutant ProteinsMyocilinolfactomedinSarcosinetrimethyloxamine

Identifiers

PMID20334347
PMCPMC2874607
OpenAlexW2009189021

What OpenQuestion holds

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LicenceTDM
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.