ClinVar Miner

Submissions for variant NM_005357.4(LIPE):c.3203_3221del (p.Val1068fs)

dbSNP: rs587777699
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
Genetic Services Laboratory, University of Chicago RCV000144035 SCV000595591 likely pathogenic LIPE-related familial partial lipodystrophy 2016-06-02 criteria provided, single submitter clinical testing
Mendelics RCV000144035 SCV001141099 pathogenic LIPE-related familial partial lipodystrophy 2023-03-24 criteria provided, single submitter clinical testing
Women's Health and Genetics/Laboratory Corporation of America, LabCorp RCV000144035 SCV004242082 likely pathogenic LIPE-related familial partial lipodystrophy 2023-12-01 criteria provided, single submitter clinical testing Variant summary: LIPE c.3203_3221del19 (p.Val1068GlyfsX102) causes a frameshift which results in an extension of the protein and is not expected to undergo nonsense mediated decay. The variant allele was found at a frequency of 0.00048 in 1479348 control chromosomes in the gnomAD database, including 1 homozygote. Notably, it is found at a frequency of 0.024 within individuals of Amish ancestry. c.3203_3221del19 has been reported in the literature in the homozygous state in four siblings with clinical features of LIPE-Related Familial Partial Lipodystrophy from an Old Order Amish family where the variant primarily segregated with the disease phenotype amongst a total of ten siblings (Albert_2014). The variant has also been reported either in the heterozygous state or as an uninformative genotype in at least two other individuals with low HDL cholesterol/dyslipidemia who underwent WES/multigene panel testing (e.g. Dron_2020, Dong_2022). These data indicate that the variant is very likely to be associated with disease. At least one publication reports experimental evidence evaluating an impact on protein function (Albert_2014). In vitro, the variant was not found to significantly affect mRNA expression, but resulted in reduced protein levels. Additionally, in subcutaneous abdominal adipocytes from homozygous individuals, no protein was detected and triglyceride lipase activity and cholesterol ester hydrolase activity were reduced compared to wild type individuals and heterozygous carriers. The following publications have been ascertained in the context of this evaluation (PMID: 24848981, 35460704, 32041611). Three submitters have cited clinical-significance assessments for this variant to ClinVar after 2014. All submitters classified the variant as pathogenic/likely pathogenic. Based on the evidence outlined above, the variant was classified as likely pathogenic.
OMIM RCV000144035 SCV000188933 not provided LIPE-related familial partial lipodystrophy 2024-01-19 no assertion criteria provided literature only

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