Studies of site-directed in vitro mutagenesis have confirmed that this mutation generates inactive lipoprotein lipase and is the cause of lipoprotein lipase deficiency.
We have previously reported two common lipoprotein lipase (LPL) gene mutations underlying LPL deficiency in the majority of 37 French Canadians (Monsalve et al., 1990.J. Clin.Invest.86: 728-734; Ma et al., 1991.N. Engl.J. Med.324: 1761-1766).
The mutant LPLs, Asp156----Gly and Asp156----Gly/Ser447----Ter, were devoid of enzyme activity, indicating that the Asp156----Gly mutation is the underlying defect for the LPL deficiency in the two patients.
A novel missense mutation in the gene for lipoprotein lipase resulting in a highly conservative amino acid substitution (Asp180-->Glu) causes familial chylomicronemia (type I hyperlipoproteinemia).
Common genetic variants of lipoprotein lipase and apolipoproteins AI-CIII that relate to coronary artery disease: a study in Chinese and European subjects.
We have studied the genetic basis of LPL deficiency in a 62-year-old black male with undetectable pre- and post-heparin plasma LPL mass and activity, DNA sequence analysis of the patient's LPL cDNA and gene as well as digestion with Bcl I and Asu I revealed that the proband is a homozygote for two separate gene defects.
Novel compound heterozygous mutations for lipoprotein lipase deficiency. A G-to-T transversion at the first position of exon 5 causing G154V missense mutation and a 5' splice site mutation of intron 8.
Mutations in Japanese subjects with primary hyperlipidemia--results from the Research Committee of the Ministry of Health and Welfare of Japan since 1996--.