NM_000527.5:c.919G>C

Variant names:

• chr19-11107493-G-C
• rs879254719
• NM_000527.5:c.919G>C

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3 PP4

This summary comes from the ClinGen Evidence Repository: The NM_000527.5(LDLR):c.919G>C (p.Asp307His) variant is classified as VUS for Familial Hypercholesterolemia by applying evidence codesPM2, PP3, and PP4 as defined by the ClinGen FamilialHypercholesterolemia 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).PP3: REVEL = 0.988.PP4: Variant meets PM2 and is identified in at least 1 index case who fulfills SB definiteFH after alternative causes of high cholesterol were excluded (PMID:17094996). LINK:https://erepo.genome.network/evrepo/ui/classification/CA10585196/MONDO:0007750/013

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.9e-7 (0 hom.)
• Consequence: LDLR NM_000527.5 missense
• Clinical Significance: Likely pathogenic criteria provided, multiple submitters, no conflicts P:3
• Conservation: PhyloP100: 9.87
• Publications: 14 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: 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.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000527.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LDLR	NM_000527.5	MANE Select	c.919G>C	p.Asp307His	missense	Exon 6 of 18	NP_000518.1
	LDLR	NM_001195798.2		c.919G>C	p.Asp307His	missense	Exon 6 of 18	NP_001182727.1
	LDLR	NM_001195799.2		c.796G>C	p.Asp266His	missense	Exon 5 of 17	NP_001182728.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LDLR	ENST00000558518.6	TSL:1 MANE Select	c.919G>C	p.Asp307His	missense	Exon 6 of 18	ENSP00000454071.1
	LDLR	ENST00000252444.10	TSL:1	c.1177G>C	p.Asp393His	missense	Exon 6 of 18	ENSP00000252444.6
	LDLR	ENST00000558013.5	TSL:1	c.919G>C	p.Asp307His	missense	Exon 6 of 18	ENSP00000453346.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.86e-7 AC: 1 AN: 1457156 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 724890

African (AFR) AF: 0.00 AC: 0 AN: 33300

American (AMR) AF: 0.00 AC: 0 AN: 44570

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 25958

East Asian (EAS) AF: 0.00 AC: 0 AN: 39462

South Asian (SAS) AF: 0.00 AC: 0 AN: 86198

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 52956

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5746

European-Non Finnish (NFE) AF: 9.02e-7 AC: 1 AN: 1108932

Other (OTH) AF: 0.00 AC: 0 AN: 60034

GnomAD4 genome Cov.: 32

ClinVar

ClinVar submissions as Germline

Significance: Likely pathogenic

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
2	-	-	Hypercholesterolemia, familial, 1 (2)
1	-	-	Familial hypercholesterolemia (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	1.0
BayesDel_addAF	Pathogenic	0.59	D
BayesDel_noAF	Pathogenic	0.61
CADD	Pathogenic	30
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.96	D
Eigen	Pathogenic	1.0
Eigen_PC	Pathogenic	0.89
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Pathogenic	0.99	D
M_CAP	Pathogenic	0.92	D
MetaRNN	Pathogenic	0.99	D
MetaSVM	Pathogenic	0.99	D
MutationAssessor	Pathogenic	4.7	H
PhyloP100		9.9
PrimateAI	Benign	0.45	T
PROVEAN	Pathogenic	-5.9	D
REVEL	Pathogenic	0.99
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0010	D
Polyphen		1.0	D
Vest4		0.89
MutPred		0.95		Loss of ubiquitination at K311 (P = 0.0806)
MVP		1.0
MPC		0.88
ClinPred		1.0	D
GERP RS		5.3
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
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

Other links and lift over

dbSNP: rs879254719; hg19: chr19-11218169;