ClinVar Miner

Submissions for variant NM_000527.4(LDLR):c.-136C>G

dbSNP: rs879254374
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Total submissions: 3
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Submitter RCV SCV Clinical significance Condition Last evaluated Review status Method Comment
ClinGen Familial Hypercholesterolemia Variant Curation Expert Panel RCV000237183 SCV002568021 uncertain significance Hypercholesterolemia, familial, 1 2022-08-28 reviewed by expert panel curation The NM_000527.4(LDLR):c.-136C>G variant is classified as Uncertain significance - insufficient evidence for Familial Hypercholesterolemia by applying evidence codes PM2, PS3_Moderate and PP4 as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (https://doi.org/10.1016/j.gim.2021.09.012). The supporting evidence is as follows: PM2 - This variant is absent from gnomAD (gnomAD v2.1.1), so PM2 is met. PS3_moderate - 2 Level 3 FS: (1) De Castro-Orós et al. 2011 (PMID: 21538688): Heterologous cells (HepG2), luciferase assays - results: 12% reporter gene expression (2) Kircher et al. 2019 (PMID: 31395865): saturation mutagenesis in HepG2 cells, luciferase high throughput study - results: 16% and 11% luciferase expression --- in both studies, transcription levels are below 50% of wild-type, so PS3_Moderate is met. PP4 - Variant meets PM2 and is identified in 1 index case who fulfills DLCN >6 criteria for FH from PMID: 21538688, after alternative causes of high cholesterol were excluded.
LDLR-LOVD, British Heart Foundation RCV000237183 SCV000294391 likely pathogenic Hypercholesterolemia, familial, 1 2016-03-25 criteria provided, single submitter literature only
Fundacion Hipercolesterolemia Familiar RCV000237183 SCV000607393 uncertain significance Hypercholesterolemia, familial, 1 2016-03-01 criteria provided, single submitter research

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