rs879254797

Positions:

Variant summary

Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PM1PM2PM5PP3_StrongPP5_Very_Strong

The NM_000527.5(LDLR):c.1118G>A(p.Gly373Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000031 in 1,613,724 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. G373A) has been classified as Likely pathogenic.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0000021 ( 0 hom. )

Consequence

LDLR
NM_000527.5 missense

Scores

Clinical Significance

Pathogenic/Likely pathogenic criteria provided, multiple submitters, no conflicts P:14

Conservation

PhyloP100: 9.77

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 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 18 ACMG points.

PM1

In a hotspot region, there are 10 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 1 benign, 8 uncertain in NM_000527.5

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr19-11111571-G-C is described in ClinVar as [Likely_pathogenic]. Clinvar id is 574051.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.994

PP5

Variant 19-11111571-G-A is Pathogenic according to our data. Variant chr19-11111571-G-A is described in ClinVar as [Likely_pathogenic]. Clinvar id is 251673.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr19-11111571-G-A is described in Lovd as [Pathogenic]. Variant chr19-11111571-G-A is described in Lovd as [Likely_pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LDLR	NM_000527.5 linkuse as main transcript	c.1118G>A	p.Gly373Asp	missense_variant	8/18	ENST00000558518.6

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LDLR	ENST00000558518.6 linkuse as main transcript	c.1118G>A	p.Gly373Asp	missense_variant	8/18	1	NM_000527.5	P3	P01130-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152224

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

0.00000205

AC:

AN:

1461500

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727084

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74360

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.0000655

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

ClinVar

Significance: Pathogenic/Likely pathogenic

Submissions summary: Pathogenic:14

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Hypercholesterolemia, familial, 1

Pathogenic:9

Likely pathogenic, criteria provided, single submitter	research	Iberoamerican FH Network	Mar 01, 2016	- -
Pathogenic, no assertion criteria provided	research	Laboratorium voor Moleculaire Diagnostiek Experimentele Vasculaire Geneeskunde, Academisch Medisch Centrum	-	- -
Likely pathogenic, criteria provided, single submitter	literature only	LDLR-LOVD, British Heart Foundation	Mar 25, 2016	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Centre de Génétique Moléculaire et Chromosomique, Unité de génétique de l'Obésité et des Dyslipidémies, APHP, GH Hôpitaux Universitaires Pitié-Salpêtrière / Charles-Foix	Dec 16, 2016	subjects mutated among 2600 FH index cases screened = 3 / FH-Potenza-2 / Software predictions: Damaging -
Likely pathogenic, criteria provided, single submitter	research	Fundacion Hipercolesterolemia Familiar	Mar 01, 2016	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Jun 29, 2021	The p.Gly373Asp variant in LDLR, also described as p.Gly352Asp in the literature, has been previously reported in >15 individuals with hypercholesterolemia, including 1 individual with familial hypercholesterolemia (FH) and tendon xanthoma who was homozygous for the variant, and segregated in at least 1 affected family member (Bertolini 1999 PMID: 9974426, Fouchier 2001 PMID: 11810272, Salazar 2002 PMID: 11933210, Mozas 2004 PMID: 15241806, van der Graaf 2011 PMID: 21382890, Bertolini 2013 PMID: 23375686, Jannes 2015 PMID: 25461735, Scicali 2017 PMID: 28958694, Corral 2018 PMID: 30270055). It has also been reported in 1 individual with early onset myocardial infarction (Khera 2019 PMID: 30586733). This variant has been reported by other clinical laboratories in ClinVar (Variation ID: 251673) and has been identified in 0.0004% (1/282736) of pan-ethnic chromosomes by gnomAD (https://gnomad.broadinstitute.org/). Computational prediction tools and conservation analysis support an impact to the protein. 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: PS4, PM2_Supporting, PP3, PM3_supporting. -
Likely pathogenic, criteria provided, single submitter	research	Laboratory of Genetics and Molecular Cardiology, University of São Paulo	Mar 01, 2016	- -
Likely pathogenic, criteria provided, single submitter	clinical testing	Laboratory of molecular diagnosis of dyslipidemias, Università egli studi di Napoli Federico II	May 24, 2021	- -
Pathogenic, criteria provided, single submitter	clinical testing	U4M - Lille University & CHRU Lille, Université de Lille - CHRU de Lille	Mar 30, 2017	- -

Familial hypercholesterolemia

Pathogenic:3

Pathogenic, criteria provided, single submitter	clinical testing	Women's Health and Genetics/Laboratory Corporation of America, LabCorp	Feb 27, 2024	Variant summary: LDLR c.1118G>A (p.Gly373Asp), also referred to as p.Gly352Asp, results in a non-conservative amino acid change located in the EGF-like domain (IPR000742) of the encoded protein sequence. Five of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 3.1e-06 in 1613724 control chromosomes (gnomAD). c.1118G>A has been reported in the literature in at least two homozygous individuals and multiple heterozygous individuals affected with Familial Hypercholesterolemia (e.g. Bertolini_1999, Bertolini_2000, Fouchier_2001, Mozas_2004, Di Taranto_2021). These data indicate that the variant is very likely to be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 9974426, 10978268, 34297352, 11810272, 15241806). ClinVar contains an entry for this variant (Variation ID: 251673). Based on the evidence outlined above, the variant was classified as pathogenic. -
Pathogenic, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Nov 08, 2023	This sequence change replaces glycine, which is neutral and non-polar, with aspartic acid, which is acidic and polar, at codon 373 of the LDLR protein (p.Gly373Asp). This variant is present in population databases (no rsID available, gnomAD no frequency). This missense change has been observed in individuals with familial hypercholesterolemia (PMID: 9974426, 11810272, 11933210, 15241806, 21382890, 23375686, 25461735). This variant is also known as p.Gly352Asp. ClinVar contains an entry for this variant (Variation ID: 251673). 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.Gly373 amino acid residue in LDLR. Other variant(s) that disrupt this residue have been observed in individuals with LDLR-related conditions (PMID: 16159606, 20145306), which suggests that this may be a clinically significant amino acid residue. For these reasons, this variant has been classified as Pathogenic. -
Pathogenic, no assertion criteria provided	clinical testing	Natera, Inc.	Sep 16, 2020	- -

not provided

Pathogenic:1

Likely pathogenic, criteria provided, single submitter

clinical testing

GeneDx

May 13, 2024

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Not observed at significant frequency in large population cohorts (gnomAD); Also known as p.(G352D) and FH Potenza-2; This variant is associated with the following publications: (PMID: 33258288, 30270055, 11810272, 11933210, 21382890, 30586733, WerutskyCA2023[Article], 37739193, 36464169, 9974426, 24529145, 15241806, 28958694, 33508743, 10978268, 25461735, 32977124, 23375686, 34037665, 35177841, 35339733, 34297352) -

Cardiovascular phenotype

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 17, 2021

The p.G373D pathogenic mutation (also known as c.1118G>A), located in coding exon 8 of the LDLR gene, results from a G to A substitution at nucleotide position 1118. The glycine at codon 373 is replaced by aspartic acid, an amino acid with similar properties. This alteration has been detected in both the homozygous and heterozygous states in multiple individuals meeting diagnostic criteria for familial hypercholesterolemia (FH) (Bertolini S et al. Arterioscler. Thromb. Vasc. Biol., 1999 Feb;19:408-18; Mozas P et al. Hum. Mutat., 2004 Aug;24:187; Noto D et al. Pediatr. Res., 2010 Feb;67:200-4; Du&scaron;ková L et al. Atherosclerosis, 2011 May;216:139-45; Jannes CE et al. Atherosclerosis, 2015 Jan;238:101-7; Scicali R et al. Nutr Metab Cardiovasc Dis, 2018 01;28:35-43; Corral P et al. Atherosclerosis, 2018 10;277:256-261; Khera AV et al. Circulation, 2019 Mar;139:1593-1602; Di Taranto MD et al. Clin Genet, 2021 11;100:529-541). In addition, this alteration is considered to be rare based on population cohorts in the Genome Aggregation Database (gnomAD).This amino acid position is highly conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Based on the supporting evidence, this alteration is interpreted as a disease-causing mutation. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.64

BayesDel_addAF

Pathogenic

0.58

BayesDel_noAF

Pathogenic

0.60

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.90

D;.;.;.;.;.

Eigen

Pathogenic

0.90

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Pathogenic

0.98

D;D;D;D;D;D

M_CAP

Pathogenic

0.93

MetaRNN

Pathogenic

0.99

D;D;D;D;D;D

MetaSVM

Pathogenic

1.0

MutationAssessor

Pathogenic

3.5

H;.;.;.;.;H

MutationTaster

Benign

1.0

D;D;D;D;D;D;D

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-6.3

D;D;D;D;D;D

REVEL

Pathogenic

0.98

Sift

Pathogenic

0.0

D;D;D;D;D;D

Sift4G

Uncertain

0.0020

D;D;D;D;D;D

Polyphen

1.0

D;.;.;.;.;.

Vest4

0.95

MutPred

0.93

Loss of ubiquitination at K376 (P = 0.0446);Loss of ubiquitination at K376 (P = 0.0446);.;.;.;Loss of ubiquitination at K376 (P = 0.0446);

MVP

1.0

MPC

0.93

ClinPred

1.0

GERP RS

5.6

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.91

gMVP

0.96

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over