Mutations in LMF1 cause combined lipase deficiency and severe hypertriglyceridemia

Miklós Péterfy, Osnat Ben-Zeev, Hui Z. Mao, Daphna Weissglas-Volkov, Bradley E. Aouizerat, Clive R. Pullinger, Philip H. Frost, John P. Kane, Mary J. Malloy, Karen Reue, Päivi Pajukanta, Mark H. Doolittle

Research output: Contribution to journalArticle

Abstract

Hypertriglyceridemia is a hallmark of many disorders, including metabolic syndrome, diabetes, atherosclerosis and obesity. A well-known cause is the deficiency of lipoprotein lipase (LPL), a key enzyme in plasma triglyceride hydrolysis. Mice carrying the combined lipase deficiency (cld) mutation show severe hypertriglyceridemia owing to a decrease in the activity of LPL and a related enzyme, hepatic lipase (HL), caused by impaired maturation of nascent LPL and hepatic lipase polypeptides in the endoplasmic reticulum (ER). Here we identify the gene containing the cld mutation as Tmem112 and rename it Lmf1 (Lipase maturation factor 1). Lmf1 encodes a transmembrane protein with an evolutionarily conserved domain of unknown function that localizes to the ER. A human subject homozygous for a deleterious mutation in LMF1 also shows combined lipase deficiency with concomitant hypertriglyceridemia and associated disorders. Thus, through its profound effect on lipase activity, LMF1 emerges as an important candidate gene in hypertriglyceridemia.

Original languageEnglish (US)
Pages (from-to)1483-1487
Number of pages5
JournalNature Genetics
Volume39
Issue number12
DOIs
StatePublished - Dec 2007

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Hypertriglyceridemia
Lipase
Mutation
Lipoprotein Lipase
Endoplasmic Reticulum
Hyperlipoproteinemia Type I
Lipoprotein(a)
Liver
Enzymes
Genes
Atherosclerosis
Triglycerides
Hydrolysis
Obesity
Lipase deficiency combined
Peptides
Proteins

ASJC Scopus subject areas

  • Genetics
  • Genetics(clinical)

Cite this

Péterfy, M., Ben-Zeev, O., Mao, H. Z., Weissglas-Volkov, D., Aouizerat, B. E., Pullinger, C. R., ... Doolittle, M. H. (2007). Mutations in LMF1 cause combined lipase deficiency and severe hypertriglyceridemia. Nature Genetics, 39(12), 1483-1487. https://doi.org/10.1038/ng.2007.24

Mutations in LMF1 cause combined lipase deficiency and severe hypertriglyceridemia. / Péterfy, Miklós; Ben-Zeev, Osnat; Mao, Hui Z.; Weissglas-Volkov, Daphna; Aouizerat, Bradley E.; Pullinger, Clive R.; Frost, Philip H.; Kane, John P.; Malloy, Mary J.; Reue, Karen; Pajukanta, Päivi; Doolittle, Mark H.

In: Nature Genetics, Vol. 39, No. 12, 12.2007, p. 1483-1487.

Research output: Contribution to journalArticle

Péterfy, M, Ben-Zeev, O, Mao, HZ, Weissglas-Volkov, D, Aouizerat, BE, Pullinger, CR, Frost, PH, Kane, JP, Malloy, MJ, Reue, K, Pajukanta, P & Doolittle, MH 2007, 'Mutations in LMF1 cause combined lipase deficiency and severe hypertriglyceridemia', Nature Genetics, vol. 39, no. 12, pp. 1483-1487. https://doi.org/10.1038/ng.2007.24
Péterfy M, Ben-Zeev O, Mao HZ, Weissglas-Volkov D, Aouizerat BE, Pullinger CR et al. Mutations in LMF1 cause combined lipase deficiency and severe hypertriglyceridemia. Nature Genetics. 2007 Dec;39(12):1483-1487. https://doi.org/10.1038/ng.2007.24
Péterfy, Miklós ; Ben-Zeev, Osnat ; Mao, Hui Z. ; Weissglas-Volkov, Daphna ; Aouizerat, Bradley E. ; Pullinger, Clive R. ; Frost, Philip H. ; Kane, John P. ; Malloy, Mary J. ; Reue, Karen ; Pajukanta, Päivi ; Doolittle, Mark H. / Mutations in LMF1 cause combined lipase deficiency and severe hypertriglyceridemia. In: Nature Genetics. 2007 ; Vol. 39, No. 12. pp. 1483-1487.
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