chr11-46859188-C-T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_002334.4(LRP4):c.5513G>A(p.Arg1838Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000756 in 1,614,022 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R1838L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00011 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000072 ( 1 hom. )

Consequence

LRP4
NM_002334.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 4.08

Publications

4 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 -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.104111284).

BS1

Variant frequency is greater than expected in population amr. GnomAd4 allele frequency = 0.000112 (17/152138) while in subpopulation AMR AF = 0.000655 (10/15274). AF 95% confidence interval is 0.000354. There are 0 homozygotes in GnomAd4. There are 8 alleles in the male GnomAd4 subpopulation. Median coverage is 31. 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.5513G>A	p.Arg1838Gln	missense_variant	Exon 38 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.5513G>A	p.Arg1838Gln	missense_variant	Exon 38 of 38	1	NM_002334.4	ENSP00000367888.1	O75096
LRP4	ENST00000529604.1 link	n.456G>A		non_coding_transcript_exon_variant	Exon 2 of 2	2
LRP4-AS1	ENST00000502049.4 link	n.196+12471C>T		intron_variant	Intron 2 of 2	2
LRP4-AS1	ENST00000531719.5 link	n.291+6242C>T		intron_variant	Intron 3 of 3	4

Frequencies

GnomAD3 genomes

AF:

0.000112

AC:

AN:

152138

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000724

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000385

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000155

AC:

AN:

251328

AF XY:

0.000191

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000318

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000979

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000792

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000718

AC:

105

AN:

1461884

Hom.:

Cov.:

AF XY:

0.0000770

AC XY:

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.0000299

AC:

AN:

33480

American (AMR)

AF:

0.000313

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.000227

AC:

AN:

39698

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00191

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000513

AC:

AN:

1112010

Other (OTH)

AF:

0.000215

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.502

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.000112

AC:

AN:

152138

Hom.:

Cov.:

AF XY:

0.000108

AC XY:

AN XY:

74314

show subpopulations

African (AFR)

AF:

0.0000724

AC:

AN:

41430

American (AMR)

AF:

0.000655

AC:

AN:

15274

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.000385

AC:

AN:

5192

South Asian (SAS)

AF:

0.00

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10604

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68024

Other (OTH)

AF:

0.00

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000921

Hom.:

Bravo

AF:

0.000204

ExAC

AF:

0.000123

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.000119

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:5

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

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

Uncertain:2

Nov 01, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 1838 of the LRP4 protein (p.Arg1838Gln). This variant is present in population databases (rs770309253, gnomAD 0.1%). 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: 373466). 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. -

Mar 11, 2024

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

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. -

Inborn genetic diseases

Uncertain:1

Sep 30, 2021

Ambry Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The c.5513G>A (p.R1838Q) alteration is located in exon 38 (coding exon 38) of the LRP4 gene. This alteration results from a G to A substitution at nucleotide position 5513, causing the arginine (R) at amino acid position 1838 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

not provided

Uncertain:1

Feb 25, 2020

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis supports that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.090

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Uncertain

-0.030

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.13

Eigen

Benign

0.17

Eigen_PC

Uncertain

0.26

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.94

M_CAP

Benign

0.049

MetaRNN

Benign

0.10

MetaSVM

Uncertain

0.073

MutationAssessor

Benign

0.34

PhyloP100

4.1

PrimateAI

Pathogenic

0.81

PROVEAN

Benign

-0.30

REVEL

Uncertain

0.49

Sift

Pathogenic

0.0

Sift4G

Pathogenic

0.0

Polyphen

0.96

Vest4

0.44

MutPred

0.42

Loss of catalytic residue at R1838 (P = 0.0091);

MVP

0.74

MPC

0.18

ClinPred

0.068

GERP RS

5.1

Varity_R

0.22

gMVP

0.54

Mutation Taster

=86/14

polymorphism

(source)

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

Publications

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chr11-46859188-C-T

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