NM_000527.5(LDLR):c.2299A>G (p.Met767Val) AND Hypercholesterolemia, familial, 1

Germline classification:: Uncertain significance (1 submission)
Last evaluated:: Dec 13, 2023
Review status:: 1 star out of maximum of 4 stars
criteria provided, single submitter

Somatic classification of clinical impact:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Somatic classification of oncogenicity:: None
Review status:: (0/4) 0 stars out of maximum of 4 stars
no assertion criteria provided

Record status:: current
Accession:: RCV004016341.2

Allele description [Variation Report for NM_000527.5(LDLR):c.2299A>G (p.Met767Val)]

NM_000527.5(LDLR):c.2299A>G (p.Met767Val)

Gene:

LDLR:low density lipoprotein receptor [Gene - OMIM - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

19p13.2

Genomic location:

Preferred name:

NM_000527.5(LDLR):c.2299A>G (p.Met767Val)

HGVS:

NC_000019.10:g.11123332A>G
NG_009060.1:g.38952A>G
NM_000527.5:c.2299A>GMANE SELECT
NM_001195798.2:c.2299A>G
NM_001195799.2:c.2176A>G
NM_001195800.2:c.1795A>G
NM_001195803.2:c.1765A>G
NP_000518.1:p.Met767Val
NP_000518.1:p.Met767Val
NP_001182727.1:p.Met767Val
NP_001182728.1:p.Met726Val
NP_001182729.1:p.Met599Val
NP_001182732.1:p.Met589Val
LRG_274t1:c.2299A>G
LRG_274:g.38952A>G
LRG_274p1:p.Met767Val
NC_000019.9:g.11234008A>G
NM_000527.4:c.2299A>G

Protein change:

M589V

Molecular consequence:

NM_000527.5:c.2299A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001195798.2:c.2299A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001195799.2:c.2176A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001195800.2:c.1795A>G - missense variant - [Sequence Ontology: SO:0001583]
NM_001195803.2:c.1765A>G - missense variant - [Sequence Ontology: SO:0001583]

Observations:

Condition(s)

Name:: Hypercholesterolemia, familial, 1
Synonyms:: LDL RECEPTOR DISORDER; Hyperlipoproteinemia Type IIa; HYPER-LOW-DENSITY-LIPOPROTEINEMIA; See all synonyms [MedGen]
Identifiers:: MONDO: MONDO:0007750; MedGen: C0745103; Orphanet: 391665; OMIM: 143890

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Submission Accession	Submitter	Review Status (Assertion method)	Clinical Significance (Last evaluated)	Origin	Method	Citations
SCV004829036	All of Us Research Program, National Institutes of Health	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain Significance (Dec 13, 2023)	germline	clinical testing	PubMed (2) [See all records that cite these PMIDs] 28965616, 25741868

Submission Accession

Submitter

Review Status
(Assertion method)

Clinical Significance
(Last evaluated)

Origin

Method

Citations

SCV004829036

All of Us Research Program, National Institutes of Health

criteria provided, single submitter

(ACMG Guidelines, 2015)

Uncertain Significance
(Dec 13, 2023)

germline

clinical testing

PubMed (2)
[See all records that cite these PMIDs]

Help

Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	5	not provided	not provided	108544	not provided	clinical testing

Citations

PubMed

Spectrum of mutations in Italian patients with familial hypercholesterolemia: New results from the LIPIGEN study.

Pirillo A, Garlaschelli K, Arca M, Averna M, Bertolini S, Calandra S, Tarugi P, Catapano AL; LIPIGEN Group..

Atheroscler Suppl. 2017 Oct;29:17-24. doi: 10.1016/j.atherosclerosissup.2017.07.002.

PubMed [citation]

PMID:: 28965616

Standards and guidelines for the interpretation of sequence variants: a joint consensus recommendation of the American College of Medical Genetics and Genomics and the Association for Molecular Pathology.

Richards S, Aziz N, Bale S, Bick D, Das S, Gastier-Foster J, Grody WW, Hegde M, Lyon E, Spector E, Voelkerding K, Rehm HL; ACMG Laboratory Quality Assurance Committee..

Genet Med. 2015 May;17(5):405-24. doi: 10.1038/gim.2015.30. Epub 2015 Mar 5.

PubMed [citation]

PMID:: 25741868
PMCID:: PMC4544753

Details of each submission

From All of Us Research Program, National Institutes of Health, SCV004829036.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	5	not provided	not provided	clinical testing	PubMed (2)

Description

This missense variant (also known as p.Met746Val in the mature protein) replaces methionine with valine at codon 767 of the LDLR protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has been reported in at least one individual affected with familial hypercholesterolemia (PMID: 28965616); this individual also carried a different pathogenic variant in the LDLR gene. This variant has been identified in 1/250976 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	germline	unknown	108544	not provided	not provided		5	not provided	not provided	not provided

Last Updated: May 7, 2024

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