ClinVar Miner

Submissions for variant NM_000527.5(LDLR):c.1928C>T (p.Ala643Val)

dbSNP: rs879255075
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Total submissions: 4
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Familial Hypercholesterolemia Variant Curation Expert Panel RCV000238205 SCV005328529 uncertain significance Hypercholesterolemia, familial, 1 2024-07-02 reviewed by expert panel curation The NM_000527.5(LDLR):c.1928C>T (p.Ala643Val) variant is classified as Uncertain significance - insufficient evidence for Familial Hypercholesterolemia by applying ACMG/AMP evidence codes PM2, BP4 and PP4 as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (specification version 1.2) on 2 July 2024. The supporting evidence is as follows: PM2: This variant is absent from gnomAD (gnomAD v2.1.1). BP4: REVEL = 0.481; score is below 0.50, splicing evaluation required. A). Not on limits. B). it creates a GT. Variant is exonic and at least 50bp upstream/downstream from canonical donor/acceptor site and creates a de novo GT. MES scores: variant cryptic site = -9.79, WT cryptic site = -17.54, canonical donor site= 10.28. De novo score is negative, so it is not used. Variant is not predicted to alter splicing. PP4: Variant meets PM2 and is identified in at least 1 index case who fulfills Simon-Broome criteria for FH (PMID 20809525) after alternative causes of high cholesterol were excluded.
LDLR-LOVD, British Heart Foundation RCV000238205 SCV000295757 likely benign Hypercholesterolemia, familial, 1 2016-03-25 criteria provided, single submitter literature only
Centre de Génétique Moléculaire et Chromosomique, Unité de génétique de l'Obésité et des Dyslipidémies, APHP, GH Hôpitaux Universitaires Pitié-Salpêtrière / Charles-Foix RCV000238205 SCV000503433 likely pathogenic Hypercholesterolemia, familial, 1 2016-12-16 criteria provided, single submitter clinical testing subject mutated among 2600 FH index cases screened = 1/software prediction damaging
Color Diagnostics, LLC DBA Color Health RCV000775081 SCV000909185 uncertain significance Familial hypercholesterolemia 2019-04-02 criteria provided, single submitter clinical testing This missense variant (also known as p.Ala622Val in the mature protein) is located in the sixth LDLR type B repeat in the EGF precursor homology domain of the LDLR protein. Computational prediction tools and conservation analyses are inconclusive regarding the impact of this variant on the protein function. Computational splicing tools suggest that this variant may not impact RNA splicing. To our knowledge, functional assays have not been performed for this variant. This variant has been reported in a French individual affected with hypercholesterolemia (PMID: 20809525). This variant has not been identified in the general population by the Genome Aggregation Database (gnomAD). Available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

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