Cited by 133Metabolism and Genetic DisordersNeurological diseases and metabolismHereditary Neurological Disorders

l-2-Hydroxyglutaric aciduria: identification of a mutant gene C14orf160, localized on chromosome 14q22.1

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Topçu, Meral, Jobard, Florence, Halliez, Sophie, Coskun, Turgay, Yalçinkayal, Cengiz, Gerceker, Filiz Ozbas, Wanders, Ronald J.A., Prud'homme, Jean-François +3 more·2004·Human Molecular Genetics

Abstract

l-2-Hydroxyglutaric aciduria (l-2-HGA) is characterized by progressive deterioration of central nervous system function including epilepsy and macrocephaly in 50% of cases, and elevated levels of l-2-hydroxyglutaric acid in urine, blood and cerebrospinal fluid (CSF). Nuclear magnetic resonance imaging shows distinct abnormalities. We report the identification of a gene for l-2-HGA aciduria (MIM 236792) using homozygosity mapping. Nine homozygous mutations including three missense mutations, two nonsense mutations, two splice site mutations and two deletions were identified in the gene C14orf160, localized on chromosome 14q22.1, in 21 patients from one non-consanguineous and 14 consanguineous Turkish families. We propose to name the gene duranin. Duranin encodes a putative mitochondrial protein with homology to FAD-dependent oxidoreductases. The functional role of this enzyme in intermediary metabolism in humans remains to be established.

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Crossref · 10.1093/hmg/ddh300

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  • D-2-HG occupies the active site of histone demethylases, increasing histone methylation in primary gliomas.

    “D-2-HG produced by mIDH1/2 has been shown to drive a CpG island methylator phenotype (G-CIMP) in both glioma and ICC tumours to promote tumorigenesis, and has also been found to occupy the active site of histone demethylases thereby increasing histone methylation in primary gliomas121,123-125.”
  • D-2-HG produced by mIDH1/2 drives a CpG island methylator phenotype in glioma and ICC tumours to promote tumorigenesis.

    “D-2-HG produced by mIDH1/2 has been shown to drive a CpG island methylator phenotype (G-CIMP) in both glioma and ICC tumours to promote tumorigenesis, and has also been found to occupy the active site of histone demethylases thereby increasing histone methylation in primary gliomas121,123-125.”

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Authors
Topçu, M., Jobard, F., Halliez, S., Coskun, T., Yalçinkayal, C., Gerceker, F. O., Wanders, R. J. A., Prud'homme, J.-F., Lathrop, M., Özguc, M., & Fischer, J.
Affiliations
Hacettepe University (TR)
Corresponding author
Topçu, Meral
Venue
Human Molecular Genetics
Published
2004-09-22
Volume
13
Issue
22
Pages
2803-2811
ISSN
  • 0964-6906 (ISSN-L)
  • 1460-2083
OpenAlex
W2134258065
Cited by
133
References
38
Citations by year
2026: 6 · 2025: 4 · 2024: 6 · 2023: 4 · 2022: 4 · 2021: 5 · 2020: 2 · 2019: 6 · 2018: 10 · 2017: 8 · 2016: 2 · 2015: 4 · 2014: 7 · 2013: 10 · 2012: 11
FWCI
3.25
Type
journal article
Language
en
Open access
Licence
other-oa
Locations
  • Human Molecular Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
  • HighWire Press Open Archive (submittedVersion)
  • Hacettepe University Institutional Repository (hacettepe.edu.tr) (submittedVersion, other-oa)
Funders
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
  • Life Sciences › Neuroscience › Neurology › Neurological diseases and metabolism
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Hereditary Neurological Disorders
Keywords
L-2-hydroxyglutaric aciduria, homozygosity mapping, gene identification, missense mutations, nonsense mutation, splice site mutation, deletion, consanguineous family, mitochondrial proteins, FAD-dependent oxidoreductase, epilepsy, macrocephaly
MeSH terms
Adolescent, Adult, Alcohol Oxidoreductases, Central Nervous System Diseases, Child, Child, Preschool, Chromosomes, Human, Pair 14, Consanguinity, Female, Glutarates, Humans, Magnetic Resonance Imaging, Male, Molecular Sequence Data, Mutation, Oxidoreductases, Turkey, Linkage Disequilibrium, Mitochondrial Proteins

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