NM_000527.4(LDLR):c.-140C>A AND Hypercholesterolemia, familial, 1

Germline classification:: Uncertain significance (4 submissions)
Last evaluated:: Aug 29, 2022
Review status:: 3 stars out of maximum of 4 stars
reviewed by expert panel

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:: RCV000455110.16

Allele description [Variation Report for NM_000527.4(LDLR):c.-140C>A]

NM_000527.4(LDLR):c.-140C>A

Genes:

LDLR:low density lipoprotein receptor [Gene - OMIM - HGNC]
LDLR-AS1:LDLR antisense RNA 1 [Gene - HGNC]

Variant type:

single nucleotide variant

Cytogenetic location:

19p13.2

Genomic location:

Preferred name:

NM_000527.4(LDLR):c.-140C>A

HGVS:

NC_000019.10:g.11089409C>A
NG_009060.1:g.5029C>A
NM_000527.4:c.-140C>A
NM_001195798.1:c.-140C>A
NM_001195799.1:c.-140C>A
NM_001195800.1:c.-140C>A
NM_001195803.1:c.-140C>A
LRG_274t1:c.-140C>A
LRG_274:g.5029C>A
NC_000019.9:g.11200085C>A
NR_163945.1:n.251G>T

Links:

Molecular consequence:

NR_163945.1:n.251G>T - non-coding transcript variant - [Sequence Ontology: SO:0001619]

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
SCV000540710	Molecular Genetics Laboratory, Centre for Cardiovascular Surgery and Transplantation See additional submitters Centre of Molecular Biology and Gene Therapy, University Hospital Brno	criteria provided, single submitter (ACMG Guidelines, 2015)	Likely pathogenic (Nov 5, 2016)	unknown	clinical testing	PubMed (1) [See all records that cite this PMID]
SCV000588475	Laboratory of Genetics and Molecular Cardiology, University of São Paulo - HipercolBrasil	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Mar 1, 2016)	germline	research	PubMed (1) [See all records that cite this PMID]
SCV000748128	Iberoamerican FH Network	criteria provided, single submitter (ACMG Guidelines, 2015)	Uncertain significance (Mar 1, 2016)	germline	research	PubMed (1) [See all records that cite this PMID]
SCV002817129	ClinGen Familial Hypercholesterolemia Variant Curation Expert Panel	reviewed by expert panel (ClinGen FH ACMG Specifications v1-2)	Uncertain significance (Aug 29, 2022)	germline	curation	Citation Link

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Summary from all submissions

Ethnicity	Origin	Affected	Individuals	Families	Chromosomes tested	Number Tested	Family history	Method
not provided	germline	unknown	not provided	not provided	not provided	not provided	not provided	research, curation
Caucasian	unknown	yes	1	1	not provided	3964	not provided	clinical testing

Citations

PubMed

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 Molecular Genetics Laboratory, Centre for Cardiovascular Surgery and Transplantation, SCV000540710.1

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

Description

Disrupt SP1 site sequence.

#	Sample				Method		Observation
#	Origin	Affected	Number tested	Tissue	Purpose	Method	Individuals	Allele frequency	Families	Co-occurrences
1	unknown	yes	3964	Whole blood	not provided		1	not provided	1	not provided

From Laboratory of Genetics and Molecular Cardiology, University of São Paulo - HipercolBrasil, SCV000588475.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	research	PubMed (1)

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

From Iberoamerican FH Network, SCV000748128.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	research	PubMed (1)

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

From ClinGen Familial Hypercholesterolemia Variant Curation Expert Panel, SCV002817129.1

#	Ethnicity	Individuals	Chromosomes Tested	Family History	Method	Citations
1	not provided	not provided	not provided	not provided	curation	not provided

Description

The NM_000527.5(LDLR): NM_000527.4(LDLR):c.-140C>A variant is classified as Uncertain significance - insufficient evidence for Familial Hypercholesterolemia by applying evidence code PM2 and PP4 as defined by the ClinGen Familial Hypercholesterolemia Expert Panel LDLR-specific variant curation guidelines (https://doi.org/10.1016/j.gim.2021.09.012). The supporting evidence is as follows: PM2 - This variant is absent from gnomAD (gnomAD v2.1.1). PP4 - Variant meets PM2 and is identified in one index case who fulfill SB criteria for FH from Molecular Genetics Laboratory (Centre for Cardiovascular Surgery and Transplantation) after alternative causes of high cholesterol were excluded.

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

Last Updated: Nov 3, 2024

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