rs759867686
Variant summary
Our verdict is Likely benign. Variant got -2 ACMG points: 2P and 4B. PM2BP4_Strong
The NM_000527.5(LDLR):c.1845+15C>A variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000274 in 1,461,640 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★★).
Frequency
Genomes: not found (cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )
Consequence
LDLR
NM_000527.5 intron
NM_000527.5 intron
Scores
2
Clinical Significance
Conservation
PhyloP100: -1.83
Genes affected
LDLR (HGNC:6547): (low density lipoprotein receptor) The low density lipoprotein receptor (LDLR) gene family consists of cell surface proteins involved in receptor-mediated endocytosis of specific ligands. The encoded protein is normally bound at the cell membrane, where it binds low density lipoprotein/cholesterol and is taken into the cell. Lysosomes release the cholesterol, which is made available for repression of microsomal enzyme 3-hydroxy-3-methylglutaryl coenzyme A (HMG CoA) reductase, the rate-limiting step in cholesterol synthesis. At the same time, a reciprocal stimulation of cholesterol ester synthesis takes place. Mutations in this gene cause the autosomal dominant disorder, familial hypercholesterolemia. Alternate splicing results in multiple transcript variants.[provided by RefSeq, May 2022]
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ACMG classification
Classification made for transcript
Verdict is Likely_benign. Variant got -2 ACMG points.
PM2
?
Very rare variant in population databases, with high coverage;
BP4
?
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
LDLR | NM_000527.5 | c.1845+15C>A | intron_variant | ENST00000558518.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
LDLR | ENST00000558518.6 | c.1845+15C>A | intron_variant | 1 | NM_000527.5 | P3 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 genomes
?
Cov.:
32
GnomAD4 exome AF: 0.00000274 AC: 4AN: 1461640Hom.: 0 Cov.: 34 AF XY: 0.00000138 AC XY: 1AN XY: 727148
GnomAD4 exome
AF:
AC:
4
AN:
1461640
Hom.:
Cov.:
34
AF XY:
AC XY:
1
AN XY:
727148
Gnomad4 AFR exome
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GnomAD4 genome ? Cov.: 32
GnomAD4 genome
?
Cov.:
32
ClinVar
Significance: Uncertain significance
Submissions summary: Pathogenic:1Uncertain:3
Revision: reviewed by expert panel
LINK: link
Submissions by phenotype
Hypercholesterolemia, familial, 1 Pathogenic:1Uncertain:3
Uncertain significance, criteria provided, single submitter | clinical testing | Robarts Research Institute, Western University | Aug 22, 2019 | - - |
Uncertain significance, reviewed by expert panel | curation | ClinGen Familial Hypercholesterolemia Variant Curation Expert Panel | Jul 22, 2022 | The NM_000527.5(LDLR):c.1845+15C>A variant is classified as Uncertain significance - insufficient evidence for Familial Hypercholesterolemia by applying evidence codes (PM2 and PM3) as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (https://doi.org/10.1101/2021.03.17.21252755). The supporting evidence is as follows: PM2 - This variant is absent from gnomAD (gnomAD v2.1.1). PM3 - Variant meets PM2 and is identified in an index case published in PMID: 30269829 with homozygous FH phenotype (LDL-C = 14.5 mmol/l) and also duplication of whole PCSK9 gene, classified as Pathogenic by the general ACMG guidelines. - |
Uncertain significance, criteria provided, single submitter | literature only | LDLR-LOVD, British Heart Foundation | Mar 25, 2016 | - - |
Pathogenic, no assertion criteria provided | research | Laboratorium voor Moleculaire Diagnostiek Experimentele Vasculaire Geneeskunde, Academisch Medisch Centrum | - | - - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
Cadd
Benign
Dann
Benign
RBP_binding_hub_radar
RBP_regulation_power_radar
Splicing
Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
Details are displayed if max score is > 0.2
DS_DG_spliceai
Position offset: -4
Find out detailed SpliceAI scores and Pangolin per-transcript scores at