19-11129601-C-T

Variant names:

• chr19-11129601-C-T
• rs774831273
• NM_000527.5:c.2478C>T

Variant summary

Our verdict is Benign. The variant received -11 ACMG points: 0P and 11B. BP4_Moderate BP6_Very_Strong BP7

The NM_000527.5(LDLR):​c.2478C>T​(p.Pro826Pro) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000821 in 1,461,794 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. P826P) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000082 (0 hom.)
• Consequence: LDLR NM_000527.5 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:7
• Conservation: PhyloP100: -5.05
• Publications: 2 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: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen
• homozygous familial hypercholesterolemia

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Benign. The variant received -11 ACMG points.

• BP4: Computational evidence support a benign effect (MetaRNN=0.124112874).
• BP6: Variant 19-11129601-C-T is Benign according to our data. Variant chr19-11129601-C-T is described in ClinVar as Likely_benign. ClinVar VariationId is 526758.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
• BP7: Synonymous conserved (PhyloP=-5.05 with no splicing effect.

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.2478C>T	p.Pro826Pro	synonymous	Exon 17 of 18	NP_000518.1	P01130-1
	LDLR	NM_001195798.2		c.2478C>T	p.Pro826Pro	synonymous	Exon 17 of 18	NP_001182727.1	P01130-5
	LDLR	NM_001195799.2		c.2355C>T	p.Pro785Pro	synonymous	Exon 16 of 17	NP_001182728.1	P01130-4

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LDLR	ENST00000558518.6	TSL:1 MANE Select	c.2478C>T	p.Pro826Pro	synonymous	Exon 17 of 18	ENSP00000454071.1	P01130-1
	LDLR	ENST00000252444.10	TSL:1	c.2736C>T	p.Pro912Pro	synonymous	Exon 17 of 18	ENSP00000252444.6	J3KMZ9
	LDLR	ENST00000558013.5	TSL:1	c.2478C>T	p.Pro826Pro	synonymous	Exon 17 of 18	ENSP00000453346.1	P01130-5

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD2 exomes AF: 0.0000119 AC: 3 AN: 251464 AF XY: 0.00

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.0000578

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.00000879

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000821 AC: 12 AN: 1461794 Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5 AN XY: 727212

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.0000671 AC: 3 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: 0.0000116 AC: 1 AN: 86256

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000719 AC: 8 AN: 1111926

Other (OTH) AF: 0.00 AC: 0 AN: 60396

GnomAD4 genome Cov.: 31

ExAC AF: 0.00000824 AC: 1

EpiCase AF: 0.00

EpiControl AF: 0.0000593

ClinVar

ClinVar submissions

Significance: Likely benign

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	-	3	Familial hypercholesterolemia (3)
-	-	1	Cardiovascular phenotype (1)
-	-	1	Hypercholesterolemia, familial, 1 (1)
-	-	1	not provided (1)
-	-	1	not specified (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Uncertain	0.059	T
BayesDel_noAF	Uncertain	0.020
CADD	Benign	1.4
DANN	Benign	0.81
FATHMM_MKL	Benign	0.11	N
LIST_S2	Benign	0.32	T
M_CAP	Uncertain	0.17	D
MetaRNN	Benign	0.12	T
PhyloP100		-5.1
PROVEAN	Benign	-0.060	N
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Vest4		0.047
MVP		0.97
GERP RS		-9.6
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Mutation Taster		=60/40	polymorphism

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: rs774831273; hg19: chr19-11240277; COSMIC: COSV99370317; COSMIC: COSV99370317;