A missense mutation at codon 188 of the human lipoprotein lipase gene is a frequent cause of lipoprotein lipase deficiency in persons of different ancestries.

M V Monsalve; H Henderson; G Roederer; P Julien; S Deeb; J J Kastelein; L Peritz; R Devlin; T Bruin; M R Murthy

doi:10.1172/JCI114769

Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Department of Medical Genetics, University of British Columbia, Vancouver, Canada.

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Published in Volume 86, Issue 3 on September 1, 1990
J Clin Invest. 1990;86(3):728–734. https://doi.org/10.1172/JCI114769.
© 1990 The American Society for Clinical Investigation

Published September 1, 1990 - Version history

Lipoprotein lipase (LPL) plays a crucial role in the regulation of lipoprotein metabolism by hydrolysing the core triglycerides of circulating chylomicrons and VLDL. Human, bovine, mouse, and guinea pig complementary DNA clones have recently been isolated and the organization of the human LPL gene is now known to comprise 10 exons spanning approximately 30 kb. Here we report a similar mutation on 21 alleles from 13 unrelated affected probands with LPL deficiency of French Canadian, English, Polish, German, Dutch, and East Indian ancestry. We show that an identical missense mutation within exon 5, resulting in an amino acid substitution of glutamic acid for glycine at position 188, is responsible for LPL deficiency in 21 of 88 LPL alleles assessed. This mutation alters an Ava II restriction site in exon 5 and will allow a rapid screening test for this mutation in patients with LPL deficiency. This mutation has occurred on the same haplotype in all the unrelated affected persons suggesting a common origin. The amino acid substitution lies within the longest segment of homology for LPL in different species and results in a protein that is catalytically defective.

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A missense mutation at codon 188 of the human lipoprotein lipase gene is a frequent cause of lipoprotein lipase deficiency in persons of different ancestries.

M V Monsalve, H Henderson, G Roederer, P Julien, S Deeb, J J Kastelein, L Peritz, R Devlin, T Bruin, and M R Murthy

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A missense mutation at codon 188 of the human lipoprotein lipase gene is a frequent cause of lipoprotein lipase deficiency in persons of different ancestries.

M V Monsalve, H Henderson, G Roederer, P Julien, S Deeb, J J Kastelein, L Peritz, R Devlin, T Bruin, and M R Murthy

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