rs148865136

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBS1_Supporting

The NM_002334.4(LRP4):c.5182A>G(p.Ile1728Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000437 in 1,613,510 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.00045 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00044 ( 0 hom. )

Consequence

LRP4
NM_002334.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 2.40

Publications

7 publications found

Variant links:

Genes affected

LRP4 (HGNC:6696): (LDL receptor related protein 4) This gene encodes a member of the low-density lipoprotein receptor-related protein family. The encoded protein may be a regulator of Wnt signaling. Mutations in this gene are associated with Cenani-Lenz syndrome. [provided by RefSeq, May 2010]

LRP4 links:

LRP4-AS1 (HGNC:44128): (LRP4 antisense RNA 1)

LRP4-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.050016463).

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000447 (68/152268) while in subpopulation AMR AF = 0.00131 (20/15296). AF 95% confidence interval is 0.000866. There are 0 homozygotes in GnomAd4. There are 39 alleles in the male GnomAd4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRP4	NM_002334.4 link	c.5182A>G	p.Ile1728Val	missense_variant	Exon 36 of 38	ENST00000378623.6	NP_002325.2	O75096

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LRP4	ENST00000378623.6 link	c.5182A>G	p.Ile1728Val	missense_variant	Exon 36 of 38	1	NM_002334.4	ENSP00000367888.1	O75096
LRP4-AS1	ENST00000502049.4 link	n.197-8565T>C		intron_variant	Intron 2 of 2	2
LRP4-AS1	ENST00000531719.5 link	n.292-8565T>C		intron_variant	Intron 3 of 3	4

Frequencies

GnomAD3 genomes

AF:

0.000447

AC:

AN:

152150

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.000314

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.0158

Gnomad NFE

AF:

0.000441

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000371

AC:

AN:

250946

AF XY:

0.000347

show subpopulations

Gnomad AFR exome

AF:

0.000308

Gnomad AMR exome

AF:

0.000810

Gnomad ASJ exome

AF:

0.0000993

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.000477

Gnomad OTH exome

AF:

0.000817

GnomAD4 exome

AF:

0.000436

AC:

637

AN:

1461242

Hom.:

Cov.:

AF XY:

0.000446

AC XY:

324

AN XY:

727014

show subpopulations

African (AFR)

AF:

0.000149

AC:

AN:

33466

American (AMR)

AF:

0.00110

AC:

AN:

44718

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26132

East Asian (EAS)

AF:

0.00

AC:

AN:

39692

South Asian (SAS)

AF:

0.00

AC:

AN:

86238

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53362

Middle Eastern (MID)

AF:

0.00173

AC:

AN:

5764

European-Non Finnish (NFE)

AF:

0.000464

AC:

516

AN:

1111496

Other (OTH)

AF:

0.000944

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.466

Heterozygous variant carriers

125

156

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

110

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000447

AC:

AN:

152268

Hom.:

Cov.:

AF XY:

0.000524

AC XY:

AN XY:

74454

show subpopulations

African (AFR)

AF:

0.000313

AC:

AN:

41554

American (AMR)

AF:

0.00131

AC:

AN:

15296

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.00

AC:

AN:

4822

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.0170

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.000441

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2102

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.504

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000526

Hom.:

Bravo

AF:

0.000529

TwinsUK

AF:

0.000270

AC:

ALSPAC

AF:

0.000519

AC:

ESP6500AA

AF:

0.000227

AC:

ESP6500EA

AF:

0.000233

AC:

ExAC

AF:

0.000362

AC:

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000709

EpiControl

AF:

0.000889

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

May 09, 2022

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.5182A>G (p.I1728V) alteration is located in exon 36 (coding exon 36) of the LRP4 gene. This alteration results from a A to G substitution at nucleotide position 5182, causing the isoleucine (I) at amino acid position 1728 to be replaced by a valine (V). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Cenani-Lenz syndactyly syndrome

Uncertain:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Cenani-Lenz syndactyly syndrome;C3280402:Sclerosteosis 2;C4225377:Congenital myasthenic syndrome 17

Uncertain:1

Oct 24, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces isoleucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 1728 of the LRP4 protein (p.Ile1728Val). This variant is present in population databases (rs148865136, gnomAD 0.08%). This variant has not been reported in the literature in individuals affected with LRP4-related conditions. ClinVar contains an entry for this variant (Variation ID: 288220). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt LRP4 protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

not provided

Uncertain:1

Jun 22, 2016

Eurofins Ntd Llc (ga)

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.062

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.26

CADD

Benign

9.6

(source)

DANN

Benign

0.82

DEOGEN2

Benign

0.083

Eigen

Benign

-0.56

Eigen_PC

Benign

-0.43

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.83

M_CAP

Benign

0.015

MetaRNN

Benign

0.050

MetaSVM

Benign

-0.54

MutationAssessor

Benign

1.4

PhyloP100

2.4

PrimateAI

Benign

0.37

PROVEAN

Benign

-0.030

REVEL

Benign

0.25

Sift

Benign

0.46

Sift4G

Benign

0.52

Polyphen

0.0010

Vest4

0.35

MVP

0.42

MPC

0.060

ClinPred

0.0099

GERP RS

3.6

Varity_R

0.026

gMVP

0.53

Mutation Taster

=88/12

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over