rs875989907

Variant summary

Our verdict is Pathogenic. The variant received 15 ACMG points: 15P and 0B. PM5_StrongPS4PM2PP3PP1PP4PS3_Moderate

This summary comes from the ClinGen Evidence Repository: The NM_000527.5(LDLR):c. c.796G>A (p.Asp266Asn) variant is classified as Pathogenic for Familial Hypercholesterolemia by applying evidence codes PS4, PM2, PM5_Strong, PS3_Moderate, PP1, PP3 and PP4 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: PS4 - Variant meets PM2. Variant identified in 10 unrelated index cases (1 case fulfilling Simon-Broome criteria published in PMID:12414836; 1 case probably fulfilling Simon-Broome criteria published in PMID:12417285; 1 case with DLCN criteria from Cardiovascular Genetics Laboratory (PathWest Laboratory Medicine WA); 4 cases with Simon-Broome criteria from Molecular Genetics Laboratory (Centre for Cardiovascular Surgery and Transplantation); 3 cases with DLCN criteria from Mayo Clinic Atherosclerosis and Lipid Genomics Laboratory);PM2 - PopMax MAF = 0.00006533 (0.006533%) in South Asian exomes (gnomAD v2.1.1);PM5_Strong - 4 other missense variants in the same codon: - NM_000527.5(LDLR): c.796G>T (p.Asp266Tyr) (ClinVar ID 251456) - Pathogenic by these guidelines. - NM_000527.5(LDLR): c.797A>T (p.Asp266Val) (ClinVar ID 251458) - Likely Pathogenic by these guidelines. - NM_001195803.2(LDLR):c.797A>G (p.Asp266Gly) (ClinVar ID 251457) - Likely pathogenic by these guidelines. - NM_001195803.2(LDLR): c.798T>A (p.Asp266Glu) - (ClinVar ID 161287) - Pathogenic by these guidelines.There are 2 variants in the same codon classified as Pathogenic by these guidelines.PS3_Moderate - Level 2 assay: PMID 12414836: Homozygous patient cells, 125I assays - result - <2% LDL-LDLR binding and internalisation. Functional study is consistent with damaging effect;PP1 - 3 informative meioses identified by Molecular Genetics Laboratory (Centre for Cardiovascular Surgery and Transplantation);PP3 - REVEL = 0,83;PP4 - Variant meets PM2. Identified in at least 1 FH case fulfilling Simon-Broome criteria published in PMID 12414836. LINK:https://erepo.genome.network/evrepo/ui/classification/CA10576288/MONDO:0007750/013

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

LDLR
NM_000527.5 missense

Scores

13
5
1

Clinical Significance

Pathogenic reviewed by expert panel P:19

Conservation

PhyloP100: 9.99

Publications

15 publications found
Variant links:
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]
LDLR Gene-Disease associations (from GenCC):
  • hypercholesterolemia, familial, 1
    Inheritance: AD, SD Classification: DEFINITIVE, STRONG Submitted by: Genomics England PanelApp, Labcorp Genetics (formerly Invitae), Laboratory for Molecular Medicine, ClinGen
  • homozygous familial hypercholesterolemia
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Pathogenic. The variant received 15 ACMG points.

PS3
For more information check the summary or visit ClinGen Evidence Repository.
PS4
For more information check the summary or visit ClinGen Evidence Repository.
PM2
For more information check the summary or visit ClinGen Evidence Repository.
PM5
For more information check the summary or visit ClinGen Evidence Repository.
PP1
For more information check the summary or visit ClinGen Evidence Repository.
PP3
For more information check the summary or visit ClinGen Evidence Repository.
PP4
For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
LDLRNM_000527.5 linkc.796G>A p.Asp266Asn missense_variant Exon 5 of 18 ENST00000558518.6 NP_000518.1 P01130-1A0A024R7D5

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
LDLRENST00000558518.6 linkc.796G>A p.Asp266Asn missense_variant Exon 5 of 18 1 NM_000527.5 ENSP00000454071.1 P01130-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152186
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.0000942
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000119
AC:
3
AN:
251478
AF XY:
0.0000221
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.0000544
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461870
Hom.:
0
Cov.:
31
AF XY:
0.00000550
AC XY:
4
AN XY:
727240
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111988
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.488
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152186
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74346
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41450
American (AMR)
AF:
0.00
AC:
0
AN:
15262
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5190
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.0000942
AC:
1
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2092
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.675
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Pathogenic
Submissions summary: Pathogenic:19
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Hypercholesterolemia, familial, 1 Pathogenic:12
Aug 07, 2024
All of Us Research Program, National Institutes of Health
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.796G>A (p.Asp266Asn) variant (also known as p.Asp245Asn) in the LDLR gene that encodes for low density lipoprotein receptor, has been identified in multiple unrelated individuals (>10) who fulfill the clinical criteria of familial hypercholesterolemia and segregated with disease in multiple families (PMID:11810272, 23375686, 15199436, 12417285, 19446849, 14974088). Experimental studies using homozygous patient derived cells revealed less than 2% LDLR activity compared to wild type (PMID: 12414836). In-silico computational prediction tools suggest that the p.Asp266Asn variant may have deleterious effect on the protein function (REVEL score: 0.832). This variant is rare (3/251478; 0.00001193) in the general population database, gnomAD. This variant is classified as pathogenic by multiple submitters in the ClinVar database including the ClinGen Variant Curation Expert Panel (ClinVar ID: 226334). Other missense variants affecting the same amino acid, p.Asp266Glu and p.Asp266Tyr, are classified as pathogenic by multiple ClinVar submitters including the ClinGen Variant Curation Expert Panel (ClinVar ID: 251456, 161287). Therefore, the c.796G>A (p.Asp266Asn) variant in the LDLR gene is classified as pathogenic. -

May 04, 2022
ClinGen Familial Hypercholesterolemia Variant Curation Expert Panel
Significance:Pathogenic
Review Status:reviewed by expert panel
Collection Method:curation

The NM_000527.5(LDLR):c. c.796G>A (p.Asp266Asn) variant is classified as Pathogenic for Familial Hypercholesterolemia by applying evidence codes PS4, PM2, PM5_Strong, PS3_Moderate, PP1, PP3 and PP4 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: PS4 - Variant meets PM2. Variant identified in 10 unrelated index cases (1 case fulfilling Simon-Broome criteria published in PMID: 12414836; 1 case probably fulfilling Simon-Broome criteria published in PMID: 12417285; 1 case with DLCN criteria from Cardiovascular Genetics Laboratory (PathWest Laboratory Medicine WA); 4 cases with Simon-Broome criteria from Molecular Genetics Laboratory (Centre for Cardiovascular Surgery and Transplantation); 3 cases with DLCN criteria from Mayo Clinic Atherosclerosis and Lipid Genomics Laboratory); PM2 - PopMax MAF = 0.00006533 (0.006533%) in South Asian exomes (gnomAD v2.1.1); PM5_Strong - 4 other missense variants in the same codon: - NM_000527.5(LDLR): c.796G>T (p.Asp266Tyr) (ClinVar ID 251456) - Pathogenic by these guidelines. - NM_000527.5(LDLR): c.797A>T (p.Asp266Val) (ClinVar ID 251458) - Likely Pathogenic by these guidelines. - NM_001195803.2(LDLR):c.797A>G (p.Asp266Gly) (ClinVar ID 251457) - Likely pathogenic by these guidelines. - NM_001195803.2(LDLR): c.798T>A (p.Asp266Glu) - (ClinVar ID 161287) - Pathogenic by these guidelines. There are 2 variants in the same codon classified as Pathogenic by these guidelines. PS3_Moderate - Level 2 assay: PMID 12414836: Homozygous patient cells, 125I assays - result - <2% LDL-LDLR binding and internalisation. Functional study is consistent with damaging effect; PP1 - 3 informative meioses identified by Molecular Genetics Laboratory (Centre for Cardiovascular Surgery and Transplantation); PP3 - REVEL = 0,83; PP4 - Variant meets PM2. Identified in at least 1 FH case fulfilling Simon-Broome criteria published in PMID 12414836. -

-
Laboratorium voor Moleculaire Diagnostiek Experimentele Vasculaire Geneeskunde, Academisch Medisch Centrum
Significance:Pathogenic
Review Status:no assertion criteria provided
Collection Method:research

- -

Dec 16, 2016
Centre de Génétique Moléculaire et Chromosomique, Unité de génétique de l'Obésité et des Dyslipidémies, APHP, GH Hôpitaux Universitaires Pitié-Salpêtrière / Charles-Foix
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

subject mutated among 2600 FH index cases screened = 1 , family members = 2 with co-segregation / previously described in association with FH / Software predictions: Damaging -

Sep 19, 2017
Human Genome Sequencing Center Clinical Lab, Baylor College of Medicine
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This c.796G>A (p.Asp266Asn) variant in the LDLR gene has been reported in multiple patients with familial hypercholesterolemia (PMID: 11810272, 23375686). Multiple different amino acid substitutions affecting aspartic acid at position 266 of the LDLR protein have also been reported in patients with familial hypercholesterolemia (PMID: 1301956, 12417285, 28235710). The c.796G>A variant is extremely rare in the general population and aspartic acid at position 266 of the LDLR protein is highly evolutionarily conserved. The c.796G>A (p.Asp266Asn) variant in the LDLR gene is classified as likely pathogenic. -

Jan 22, 2020
Broad Center for Mendelian Genomics, Broad Institute of MIT and Harvard
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:curation

The p.Asp266Asn (sometimes called p.Asp245Asn) variant in LDLR has been reported in at least 15 individuals (including 8 Norwegian, 3 Tunisian, 1 Dutch, 1 Japanese, and 1 German individuals) with Hypercholesterolemia, segregated with disease in 11 affected relatives from 3 families (PMID: 12414836, 11810272, 15199436, 12417285, 19446849, 14974088), and has been identified in 0.006533% (2/30616) of South Asian chromosomes and 0.005437% (1/18394) of East Asian chromosomes by the Genome Aggregation Database (gnomAD, http://gnomad.broadinstitute.org; dbSNP rs875989907). Please note that for diseases with clinical variability, or reduced penetrance, pathogenic variants may be present at a low frequency in the general population. This variant has also been reported likely pathogenic and pathogenic in ClinVar (Variation ID: 226334). Computational prediction tools and conservation analyses suggest that this variant may impact the protein, though this information is not predictive enough to determine pathogenicity. One additional variant with a different amino acid change at the same position (p.Asp266Glu) has been reported in association with disease in ClinVar, supporting that a change at this position may not be tolerated (Variation ID: 161287). In summary, although additional studies are required to fully establish its clinical significance, this variant is likely pathogenic. ACMG/AMP Criteria applied: PM5_supporting, PS4_Moderate, PP1_Moderate, PP3 (Richards 2015). -

Mar 30, 2017
U4M - Lille University & CHRU Lille, Université de Lille - CHRU de Lille
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Dec 15, 2021
Revvity Omics, Revvity
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 01, 2016
Fundacion Hipercolesterolemia Familiar
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:research

- -

Nov 05, 2016
Molecular Genetics Laboratory, Centre for Cardiovascular Surgery and Transplantation
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Mar 25, 2016
LDLR-LOVD, British Heart Foundation
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:literature only

- -

Jan 05, 2022
Cardiovascular Genetics Laboratory, PathWest Laboratory Medicine WA - Fiona Stanley Hospital
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The LDLR p.Asp266Asn (originally p.Asp245Asn) missense variant occurs within the ligand-binding domain of the LDL-receptor and is pathogenic for familial hypercholesterolaemia (FH). In silico algorithms (PolyPhen2, SIFT, MutationTaster) predict LDLR p.Asp266Asn to be pathogenic. It, along with different missense variants at the same codon (p.Asp266Glu, p.Asp266Gly, p.Asp266Tyr, p.Asp266Val), has previously been identified in multiple cohorts of FH patients worldwide. Studies in cultured patient cells showed that LDL-receptor activity in the homozygous state is <2% of normal (PMID:12414836). -

Familial hypercholesterolemia Pathogenic:3
Aug 28, 2023
Human Genome Sequencing Center Clinical Lab, Baylor College of Medicine
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.796G>A (p.Asp266Asn) variant (also known as p.Asp245Asn) in the LDLR gene that encodes for low density lipoprotein receptor, has been identified in multiple unrelated individuals (>10) who fulfill the clinical criteria of familial hypercholesterolemia and segregated with disease in multiple families (PMID:11810272, 23375686, 15199436, 12417285, 19446849, 14974088). Experimental studies using homozygous patient derived cells revealed less than 2% LDLR activity compared to wild type (PMID: 12414836). In-silico computational prediction tools suggest that the p.Asp266Asn variant may have deleterious effect on the protein function (REVEL score: 0.832). This variant is rare (3/251478; 0.00001193) in the general population database, gnomAD. This variant is classified as pathogenic by multiple submitters in the ClinVar database including the ClinGen Variant Curation Expert Panel (ClinVar ID: 226334). Other missense variants affecting the same amino acid, p.Asp266Glu and p.Asp266Tyr, are classified as pathogenic by multiple ClinVar submitters including the ClinGen Variant Curation Expert Panel (ClinVar ID: 251456, 161287). Therefore, the c.796G>A (p.Asp266Asn) variant in the LDLR gene is classified as pathogenic. -

Jul 05, 2024
Color Diagnostics, LLC DBA Color Health
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This missense variant replaces aspartic acid with asparagine at codon 266 in the LDLR type A repeat 6 of the LDLR protein. This variant is also known as p.Asp245Asn in the mature protein, and FH Tozeur in the literature. Computational prediction tools indicate that this variant has a deleterious impact on protein structure and function. A functional study using fibroblasts derived from a homozygous carrier individual have shown that this variant causes a significant reduction in LDL-R activity (PMID: 12414836). This LDLR variant has been reported in over 20 heterozygous individuals affected with familial hypercholesterolemia (PMID: 11810272, 12414836, 12417285, 14974088, 15199436, 15823288, 19446849, 22698793, 23375686, 26020417, 30312929, 33740630, 34037665; ClinVar SCV002568103.1). This variant has also been observed in compound heterozygous state with a known pathogenic LDLR variant in an individual affected with severe homozygous familial hypercholesterolemia, a phenotype expected of having two deleterious LDLR variants (PMID: 34834584). It has been shown that this variant segregates with disease in multiple affected individuals from multiple families (PMID: 12414836, 22417841; ClinVar SCV002568103.1). This variant has been identified in 3/251478 chromosomes in the general population by the Genome Aggregation Database (gnomAD). Different variants affecting the same codon (p.Asp266Glu, p.Asp266Gly, p.Asp266Val, p.Asp266His, p.Asp266Tyr) are considered to be disease-causing (ClinVar variation ID: 161287, 251457, 251458, 1761428, 251456), suggesting that aspartic acid at this position is important for LDLR protein function. Based on the available evidence, this variant is classified as Pathogenic. -

Feb 13, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 266 of the LDLR protein (p.Asp266Asn). This variant is present in population databases (no rsID available, gnomAD 0.006%). This missense change has been observed in individuals with hypercholesterolemia (PMID: 14974088, 22417841, 22698793, 23375686). This variant is also known as p.Asp245Asn. ClinVar contains an entry for this variant (Variation ID: 226334). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt LDLR protein function with a positive predictive value of 95%. This variant disrupts the p.Asp266 amino acid residue in LDLR. Other variant(s) that disrupt this residue have been determined to be pathogenic (PMID: 1301956, 11196104, 20663204, 21310417, 22698793, 23375686, 26238499). This suggests that this residue is clinically significant, and that variants that disrupt this residue are likely to be disease-causing. For these reasons, this variant has been classified as Pathogenic. -

Homozygous familial hypercholesterolemia Pathogenic:1
Apr 16, 2019
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Likely pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.Asp266Asn variant in LDLR has been reported in the heterozygous state in 3 individuals with familial hypercholesterolemia (FH), in the homozygous state in 1 individual with a more severe presentation and segregated with disease in 2 affected individuals from 2 families (Fouchier 2001, Slimani 2012, Tichy 2012, Bertolini 2013). It has also been reported by other clinical laboratories in ClinVar (Variation ID 161287) and has identified in 3/251478 pan-ethnic chromosomes by gnomAD (http://gnomad.broadinstitute.org). This frequency is low enough to be consistent with the frequency of FH in the general population. Computational prediction tools and conservation analysis suggest that this variant may impact the protein. In addition, another variant involving this codon (p.Asp266Glu) has been identified in individuals with FH and is classified as pathogenic by this laboratory. In summary, although additional studies are required to fully establish its clinical significance, this variant meets criteria to be classified as likely pathogenic for autosomal dominant FH. ACMG/AMP criteria applied: PM2, PM5, PP3, PS4_Supporting. -

Dyslipidemia Pathogenic:1
Aug 08, 2024
Molecular Diagnostic Laboratory for Inherited Cardiovascular Disease, Montreal Heart Institute
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

PS4, PM5_strong, PS3_mod, PM2, PP1, PP3, PP4 -

not provided Pathogenic:1
Mar 06, 2025
GeneDx
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Identified in many unrelated individuals with familial hypercholesterolemia in published literature (PMID: 11810272, 12417285, 14974088, 15199436, 15823288, 19446849, 21310417, 22698793, 23375686, 31491741); Observed in apparent homozygous state and in compound heterozygous state in several patients with severe clinical presentations of FH in the published literature, and not observed in homozygous state in controls (PMID: 22417841, 12414836, 31386798, 32977124); Not observed at significant frequency in large population cohorts (gnomAD); Disrupts a negatively charged triplet, Ser-Asp-Glu, located at the carboxyl-terminal end of the LDL-receptor class A6 repeat domain that is critical for ligand binding (PMID: 12827279); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Also known as FH-Tozeur and p.(D245N); This variant is associated with the following publications: (PMID: 34037665, 30241732, 32331935, 23375686, 31447099, 31491741, 33740630, 11810272, 32977124, 12414836, 31386798, 15199436, 14974088, 19446849, 21310417, 22698793, 15823288, 22417841, 37728764, 35913489, 35480308, 33955087, 12417285, 12827279) -

Cardiovascular phenotype Pathogenic:1
Apr 23, 2025
Ambry Genetics
Significance:Pathogenic
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.D266N pathogenic mutation (also known as c.796G>A), located in coding exon 5 of the LDLR gene, results from a G to A substitution at nucleotide position 796. The aspartic acid at codon 266 is replaced by asparagine, an amino acid with highly similar properties. This variant (also referred to as D245N) was reported in individual(s) with features consistent with familial hypercholesterolemia and segregated with disease in at least one family (Fouchier SW et al. Hum. Genet., 2001 Dec;109:602-15; Yu W et al. Atherosclerosis, 2002 Dec;165:335-42; Slimane MN et al. J. Med. Genet., 2002 Nov;39:e74; Dedoussis GV et al. Hum. Mutat., 2004 Mar;23:285-6; Leren TP et al. Semin Vasc Med, 2004 Feb;4:75-85; Damgaard D et al. Atherosclerosis, 2005 May;180:155-60; Guardamagna O et al. J. Pediatr., 2009 Aug;155:199-204.e2; Du&scaron;kov&aacute; L et al. Atherosclerosis, 2011 May;216:139-45). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the supporting evidence, this variant is interpreted as a disease-causing mutation. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.98
BayesDel_addAF
Uncertain
0.11
D
BayesDel_noAF
Uncertain
0.11
CADD
Pathogenic
26
DANN
Pathogenic
1.0
DEOGEN2
Pathogenic
0.96
D;.;.;.;.
Eigen
Pathogenic
0.87
Eigen_PC
Pathogenic
0.73
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Pathogenic
0.99
D;D;D;D;D
M_CAP
Pathogenic
0.94
D
MetaRNN
Pathogenic
1.0
D;D;D;D;D
MetaSVM
Pathogenic
1.0
D
MutationAssessor
Pathogenic
4.0
H;.;.;.;H
PhyloP100
10
PrimateAI
Uncertain
0.63
T
PROVEAN
Pathogenic
-4.6
D;D;D;D;D
REVEL
Pathogenic
0.83
Sift
Uncertain
0.0010
D;D;D;D;D
Sift4G
Uncertain
0.0040
D;D;D;D;D
Polyphen
1.0
D;.;.;.;.
Vest4
0.85
MutPred
0.94
Loss of disorder (P = 0.1784);Loss of disorder (P = 0.1784);.;.;Loss of disorder (P = 0.1784);
MVP
1.0
MPC
0.79
ClinPred
1.0
D
GERP RS
5.1
Varity_R
0.99
gMVP
0.99
Mutation Taster
=0/100
disease causing (ClinVar)

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs875989907; hg19: chr19-11217342; API