Evidence map›Paper›PMID 11389485›Full record

ArticleAmerican journal of human genetics2001

Disorders of peroxisome biogenesis due to mutations in PEX1: phenotypes and PEX1 protein levels.

C Walter, J Gootjes, P A Mooijer, H Portsteffen, C Klein, H R Waterham, P G Barth, J T Epplen, W H Kunau, R J Wanders and 1 more

Open access · bronzeAbstract read
In one paragraph

Article in American journal of human genetics, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed, 1 pooled it
1.7field-weighted citation impact, top 16% 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

35 citing papers in PubMed, 1 synthesis or guideline pooled it, 107 citations in OpenAlex.

  1. Pooled it
  2. Polyunsaturated fatty acid metabolism in the retinal pigment epithelium and its association with outer retinal disease.Mammalian genome : official journal of the International Mammalian Genome Society · 2026
    Review
  3. Article
  4. PEX1The Journal of biological chemistry · 2025
    Article
  5. Article
  6. Article
  7. Article
  8. Review
  9. AAV-mediatedMolecular therapy. Methods & clinical development · 2021
    Article
  10. The Nitric Oxide Donor,Frontiers in cell and developmental biology · 2021
    Article
  11. Mild form of Zellweger Spectrum Disorders (ZSD) due to variants inMolecular genetics and metabolism reports · 2020
    Article
  12. The peroxisomal disorder spectrum and Heimler syndrome: Deep phenotyping and review of the literature.American journal of medical genetics. Part C, Seminars in medical genetics · 2020
    Article
  13. Article
  14. The Peroxisomal PTS1-Import Defect ofInternational journal of molecular sciences · 2020
    Article
  15. Pexophagy: A Model for Selective Autophagy.International journal of molecular sciences · 2020
    Review
  16. Structural Mapping of Missense Mutations in the Pex1/Pex6 Complex.International journal of molecular sciences · 2019
    Review
  17. Article
  18. A metabolomic map of Zellweger spectrum disorders reveals novel disease biomarkers.Genetics in medicine : official journal of the American College of Medical Genetics · 2018
    Article
  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

11 authors at 3 institutions in 2 countries.

C WalterInstitut für Physiologische Chemie, Abteilung für Zellbiochemie, Ruhr-Universität Bochum, Universitätsstrasse 150, 44801 Bochum, Germany.
J Gootjes
P A Mooijer
H Portsteffen
C Klein
H R Waterham
P G Barth
J T Epplen
W H Kunau
R J Wanders
G Dodt
University of Amsterdam · NLAcademic Medical Center · NLRuhr University Bochum · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Zellweger syndrome (ZS), neonatal adrenoleukodystrophy (NALD), and infantile Refsum disease (IRD) are clinically overlapping syndromes, collectively called "peroxisome biogenesis disorders" (PBDs), with clinical features being most severe in ZS and least pronounced in IRD. Inheritance of these disorders is autosomal recessive. The peroxisome biogenesis disorders are genetically heterogeneous, having at least 12 different complementation groups (CGs). The gene affected in CG1 is PEX1. Approximately 65% of the patients with PBD harbor mutations in PEX1. In the present study, we used SSCP analysis to evaluate a series of patients belonging to CG1 for mutations in PEX1 and studied phenotype-genotype correlations. A complete lack of PEX1 protein was found to be associated with severe ZS; however, residual amounts of PEX1 protein were found in patients with the milder phenotypes, NALD and IRD. The majority of these latter patients carried at least one copy of the common G843D allele. When patient fibroblasts harboring this allele were grown at 30 degrees C, a two- to threefold increase in PEX1 protein levels was observed, associated with a recovery of peroxisomal function. This suggests that the G843D missense mutation results in a misfolded protein, which is more stable at lower temperatures. We conclude that the search for the factors and/or mechanisms that determine the stability of mutant PEX1 protein by high-throughput procedures will be a first step in the development of therapeutic strategies for patients with mild PBDs.

Indexed as

AdrenoleukodystrophyAllelesATPases Associated with Diverse Cellular ActivitiesBase SequenceCells, CulturedChildChild, PreschoolExonsFibroblastsGenotypeHumansInfantInfant, NewbornIntronsMembrane ProteinsMutationATPases Associated with Diverse Cellular ActivitiesMembrane ProteinsPEX1 protein, human

Identifiers

PMID11389485
PMCPMC1226046
OpenAlexW2000858209

What OpenQuestion holds

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Registered trials

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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.