Evidence map›Paper›PMID 22592100›Full record

ArticleMolecular genetics and metabolism2012

Pharmacological chaperones facilitate the post-ER transport of recombinant N370S mutant β-glucocerebrosidase in plant cells: evidence that N370S is a folding mutant.

Gholamreza Babajani, Michael B Tropak, Don J Mahuran, Allison R Kermode

Abstract read
In one paragraph

Article in Molecular genetics and metabolism, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.2field-weighted citation impact, top 13% 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

19 citing papers in PubMed, 38 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Journal of clinical medicine · 2019
    Article
  8. Pharmacotherapy of Gaucher Disease: Current and Future Options.P & T : a peer-reviewed journal for formulary management · 2018
    Article
  9. Glucosylsphingosine Promotes α-Synuclein Pathology in Mutant GBA-Associated Parkinson's Disease.The Journal of neuroscience : the official journal of the Society for Neuroscience · 2017
    Article
  10. Article
  11. Article
  12. Review
  13. Mutant glucocerebrosidase in Gaucher disease recruits Hsp27 to the Hsp90 chaperone complex for proteasomal degradation.Proceedings of the National Academy of Sciences of the United States of America · 2015
    Article
  14. Article
  15. Glucocerebrosidase is shaking up the synucleinopathies.Brain : a journal of neurology · 2014
    Review
  16. Article
  17. Article
  18. Article
  19. Gaucher disease: Progress and ongoing challenges.Molecular genetics and metabolism
    Review
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

4 authors at 3 institutions in 1 country.

Gholamreza BabajaniDepartment of Biological Sciences, Simon Fraser University, 8888 University Dr., Burnaby, BC, Canada V5A 1S6.
Michael B Tropak
Don J Mahuran
Allison R Kermode
Simon Fraser University · CAHospital for Sick Children · CAUniversity of Toronto · CA

Funding

CIHR 82944
6 · The paper itself

Abstract

Gaucher disease is a prevalent lysosomal storage disease in which affected individuals inherit mutations in the gene (GBA1) encoding lysosomal acid β-glucosidase (glucocerebrosidase, GCase, EC 3.2.1.45). One of the most prevalent disease-causing mutations in humans is a N370S missense mutation in the GCase protein. As part of a larger endeavor to study the fate of mutant human proteins expressed in plant cells, the N370S mutant protein along with the wild-type- (WT)-GCase, both equipped with a signal peptide, were synthesized in transgenic tobacco BY2 cells, which do not possess lysosomes. The enzymatic activity of plant-recombinant N370S GCase lines was significantly lower (by 81-95%) than that of the WT-GCase lines. In contrast to the WT-GCase protein, which was efficiently secreted from tobacco BY2 cells, and detected in large amounts in the culture medium, only a small proportion of the N370S GCase was secreted. Pharmacological chaperones such as N-(n-nonyl) deoxynojirimycin and ambroxol increased the steady-state mutant protein levels both inside the plant cells and in the culture medium. These findings contradict the assertion that small molecule chaperones increase N370S GCase activity (as assayed in treated patient cell lysates) by stabilizing the enzyme in the lysosome, and suggest that the mutant protein is impaired in its ability to obtain its functional folded conformation, which is a requirement for exiting the lumen of the ER.

Indexed as

Biological TransportCatalytic DomainCells, CulturedEndoplasmic ReticulumGaucher DiseaseGlucosylceramidaseHumansMolecular ChaperonesMutationPlant CellsPlants, Genetically ModifiedProtein FoldingRecombinant ProteinsGlucosylceramidaseMolecular ChaperonesRecombinant Proteins

Identifiers

PMID22592100
PMCPMC3425598
OpenAlexW2081902630

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.