Cited by 221Metabolism and Genetic DisordersAmino Acid Enzymes and MetabolismBiochemical and Molecular Research

Cloning of the human aspartoacylase cDNA and a common missense mutation in Canavan disease

Kaul, Rajinder, Ping Gao, Guang, Balamurugan, Kuppareddi, Matalon, Reuben·1993·Nature Genetics

Abstract

Canavan disease, an autosomal recessive leukodystrophy, is caused by deficiency of aspartoacylase and accumulation of N-acetylaspartic acid in brain. We have cloned the human aspartoacylase (ASP) cDNA spanning 1,435 basepairs, and show that the isolated cDNA expresses aspartoacylase activity in bacteria. Furthermore, an A to C base change, at nucleotide 854, has been found in 85% of the 34 Canavan alleles tested so far. This base change results in a missense Glu285Ala mutation that is predicted to be part of the catalytic domain of aspartoacylase. The data suggest that the catalytic centre of aspartoacylase involves a triad of Ser, His and Glu residues. Our findings have implications for diagnosis and screening of Canavan disease.

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Crossref · 10.1038/ng1093-118

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Authors
Kaul, R., Ping Gao, G., Balamurugan, K., & Matalon, R.
Affiliations
Miami Children's Hospital (US)
Venue
Nature Genetics
Published
1993-10
Volume
5
Issue
2
Pages
118-123
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W2024102509
Cited by
221
References
52
Citations by year
2026: 3 · 2025: 4 · 2024: 7 · 2023: 4 · 2022: 1 · 2021: 1 · 2020: 5 · 2019: 5 · 2017: 4 · 2016: 11 · 2015: 8 · 2014: 13 · 2013: 10 · 2012: 10
FWCI
5.09
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Clinical Biochemistry › Metabolism and Genetic Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Amino Acid Enzymes and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Biochemical and Molecular Research
Keywords
Canavan disease, aspartoacylase, cDNA cloning, missense mutations, leukodystrophy, N-acetylaspartic acid, catalytic domain, enzyme deficiency, disease screening
MeSH terms
Amidohydrolases, Amino Acid Sequence, Animals, Base Sequence, Cattle, Humans, Molecular Sequence Data, Mutation, Sequence Alignment, Canavan Disease, DNA, Complementary

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