rs749085746

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

This summary comes from the ClinGen Evidence Repository: The NM_000527.5(LDLR):c.2017A>C (p.Ser673Arg) variant is classified as Uncertain significance - insufficient evidence for Familial Hypercholesterolemia by applying ACMG/AMP evidence code PM2 as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (specification version 1.2) on 28 March 2025. The supporting evidence is as follows:PM2: PopMax MAF= 0.0000008474 (0.00008474%) in European non-Finnish exomes + genomes (gnomAD v.4.1.0). LINK:https://erepo.genome.network/evrepo/ui/classification/CA038161/MONDO:0007750/013

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

LDLR
NM_000527.5 missense

Scores

1
5
13

Clinical Significance

Uncertain significance reviewed by expert panel U:2B:1

Conservation

PhyloP100: -0.271

Publications

0 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: Uncertain_significance. The variant received 2 ACMG points.

PM2
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.2017A>C p.Ser673Arg missense_variant Exon 14 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.2017A>C p.Ser673Arg missense_variant Exon 14 of 18 1 NM_000527.5 ENSP00000454071.1 P01130-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251254
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00000880
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461852
Hom.:
0
Cov.:
35
AF XY:
0.00000138
AC XY:
1
AN XY:
727232
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:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53378
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1112012
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.425
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
GnomAD4 genome
Cov.:
32
Alfa
AF:
0.00
Hom.:
0
ExAC
AF:
0.00000824
AC:
1

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:2Benign:1
Revision: reviewed by expert panel
LINK: link

Submissions by phenotype

Hypercholesterolemia, familial, 1 Uncertain:2Benign:1
Mar 01, 2016
Laboratory of Genetics and Molecular Cardiology, University of São Paulo
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:research

- -

Mar 28, 2025
ClinGen Familial Hypercholesterolemia Variant Curation Expert Panel
Significance:Uncertain significance
Review Status:reviewed by expert panel
Collection Method:curation

The NM_000527.5(LDLR):c.2017A>C (p.Ser673Arg) variant is classified as Uncertain significance - insufficient evidence for Familial Hypercholesterolemia by applying ACMG/AMP evidence code PM2 as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (specification version 1.2) on 28 March 2025. The supporting evidence is as follows: PM2: PopMax MAF= 0.0000008474 (0.00008474%) in European non-Finnish exomes + genomes (gnomAD v.4.1.0). -

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

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.17
BayesDel_addAF
Pathogenic
0.17
D
BayesDel_noAF
Uncertain
0.010
CADD
Benign
5.9
DANN
Benign
0.95
DEOGEN2
Uncertain
0.48
T;.;.;.;.
Eigen
Benign
-1.2
Eigen_PC
Benign
-1.1
FATHMM_MKL
Benign
0.32
N
LIST_S2
Benign
0.047
T;T;T;T;T
M_CAP
Benign
0.079
D
MetaRNN
Uncertain
0.43
T;T;T;T;T
MetaSVM
Uncertain
-0.14
T
MutationAssessor
Benign
0.34
N;.;.;.;N
PhyloP100
-0.27
PrimateAI
Benign
0.27
T
PROVEAN
Benign
-1.1
N;N;N;N;N
REVEL
Uncertain
0.50
Sift
Benign
0.096
T;T;T;T;T
Sift4G
Benign
0.14
T;T;T;T;T
Polyphen
0.0
B;.;.;.;.
Vest4
0.36
MutPred
0.81
Loss of sheet (P = 0.0181);Loss of sheet (P = 0.0181);.;.;Loss of sheet (P = 0.0181);
MVP
1.0
MPC
0.24
ClinPred
0.019
T
GERP RS
2.0
Varity_R
0.22
gMVP
0.86
Mutation Taster
=19/81
disease causing

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

Other links and lift over

dbSNP: rs749085746; hg19: chr19-11231075; API