11-68425226-A-G

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 5P and 8B. PM1PM2PP2BP4_StrongBS1

The NM_002335.4(LRP5):c.3361A>G(p.Asn1121Asp) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00022 in 1,612,698 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.00039 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 0 hom. )

Consequence

LRP5
NM_002335.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:5B:2

Conservation

PhyloP100: 8.70

Variant links:

Genes affected

LRP5 (HGNC:6697): (LDL receptor related protein 5) This gene encodes a transmembrane low-density lipoprotein receptor that binds and internalizes ligands in the process of receptor-mediated endocytosis. This protein also acts as a co-receptor with Frizzled protein family members for transducing signals by Wnt proteins and was originally cloned on the basis of its association with type 1 diabetes mellitus in humans. This protein plays a key role in skeletal homeostasis and many bone density related diseases are caused by mutations in this gene. Mutations in this gene also cause familial exudative vitreoretinopathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, May 2014]

LRP5 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PM1

In a repeat LDL-receptor class B 18 (size 44) in uniprot entity LRP5_HUMAN there are 9 pathogenic changes around while only 1 benign (90%) in NM_002335.4

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in the LRP5 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 71 curated pathogenic missense variants (we use a threshold of 10). The gene has 23 curated benign missense variants. Gene score misZ: 1.6684 (below the threshold of 3.09). Trascript score misZ: 3.6986 (above the threshold of 3.09). GenCC associations: The gene is linked to exudative vitreoretinopathy 4, polycystic liver disease 4 with or without kidney cysts, polycystic liver disease 1, exudative vitreoretinopathy, osteosclerosis-developmental delay-craniosynostosis syndrome, bone mineral density quantitative trait locus 1, autosomal dominant osteopetrosis 1, hyperostosis corticalis generalisata, osteoporosis-pseudoglioma syndrome, autosomal dominant osteosclerosis, Worth type, inherited retinal dystrophy.

BP4

Computational evidence support a benign effect (MetaRNN=0.021463394).

BS1

Variant frequency is greater than expected in population eas. gnomad4 allele frequency = 0.000394 (60/152164) while in subpopulation EAS AF= 0.0104 (54/5170). AF 95% confidence interval is 0.00822. There are 0 homozygotes in gnomad4. There are 34 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRP5	NM_002335.4 link	c.3361A>G	p.Asn1121Asp	missense_variant	Exon 15 of 23	ENST00000294304.12	NP_002326.2	O75197

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
LRP5	ENST00000294304.12 link	c.3361A>G	p.Asn1121Asp	missense_variant	Exon 15 of 23	1	NM_002335.4	ENSP00000294304.6	O75197
LRP5	ENST00000529993.5 link	n.*1967A>G		non_coding_transcript_exon_variant	Exon 15 of 23	1		ENSP00000436652.1	E9PHY1
LRP5	ENST00000529993.5 link	n.*1967A>G		3_prime_UTR_variant	Exon 15 of 23	1		ENSP00000436652.1	E9PHY1

Frequencies

GnomAD3 genomes

AF:

0.000395

AC:

AN:

152046

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.0000654

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.0104

Gnomad SAS

AF:

0.00104

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000640

AC:

160

AN:

250134

Hom.:

AF XY:

0.000620

AC XY:

AN XY:

135420

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00794

Gnomad SAS exome

AF:

0.000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000654

GnomAD4 exome

AF:

0.000202

AC:

295

AN:

1460534

Hom.:

Cov.:

AF XY:

0.000202

AC XY:

147

AN XY:

726682

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00579

Gnomad4 SAS exome

AF:

0.000417

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.000414

GnomAD4 genome

AF:

0.000394

AC:

AN:

152164

Hom.:

Cov.:

AF XY:

0.000457

AC XY:

AN XY:

74400

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.0000653

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.0104

Gnomad4 SAS

AF:

0.00104

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.000409

Hom.:

Bravo

AF:

0.000378

ExAC

AF:

0.000659

AC:

Asia WGS

AF:

0.00231

AC:

AN:

3478

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:5Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

Exudative vitreoretinopathy 4

Uncertain:2

Mar 18, 2016

Soonchunhyang University Bucheon Hospital, Soonchunhyang University Medical Center

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: reference population

- -

May 31, 2018

SIB Swiss Institute of Bioinformatics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: curation

This variant is interpreted as a Uncertain Significance - Insufficient Evidence, for Exudative vitreoretinopathy 4, in Autosomal Dominant manner. The following ACMG Tag(s) were applied: BS1-Supporting => BS1 downgraded in strength to supporting. -

not provided

Benign:2

Jan 30, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Jun 09, 2020

GeneDx

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Reported previously in individuals with familial exudative vitreoretinopathy, but some individuals were reported to have causative variants in other genes and the variant was inherited from an unaffected parent in multiple families (Qin et al., 2005; Yang et al., 2012; Seo et al., 2015; Tang et al., 2017; Li et al., 2018); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 26244290, 29181528, 28251098, 23077402, 15981244, 30452590, 31169861, 30097784) -

Osteogenesis imperfecta

Uncertain:1

Mar 16, 2020

Genome Diagnostics Laboratory, The Hospital for Sick Children

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Osteoporosis with pseudoglioma;C0432273:Worth disease;C1843330:Autosomal dominant osteopetrosis 1;C1866079:Bone mineral density quantitative trait locus 1;C1866176:Exudative vitreoretinopathy 4;C4693479:Polycystic liver disease 4 with or without kidney cysts

Uncertain:1

Feb 29, 2024

Fulgent Genetics, Fulgent Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

LRP5-related disorder

Uncertain:1

Sep 24, 2024

PreventionGenetics, part of Exact Sciences

Significance: Uncertain significance

Review Status: no assertion criteria provided

Collection Method: clinical testing

The LRP5 c.3361A>G variant is predicted to result in the amino acid substitution p.Asn1121Asp. This variant has been reported in individuals with familial exudative vitreoretinopathy; however, it has also been detected in unaffected parents and in individuals in whom another causative variant was identified (see, for example, Qin et al. 2005. PubMed ID: 15981244; Li et al. 2018. PubMed ID: 30452590; Kondo et al. 2024. PubMed ID: 38881609). This variant is reported in 0.79% of alleles in individuals of East Asian descent in gnomAD. Although we suspect that this variant may be benign, at this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.15

BayesDel_addAF

Benign

-0.18

BayesDel_noAF

Uncertain

-0.030

CADD

Benign

DANN

Uncertain

1.0

DEOGEN2

Benign

0.41

Eigen

Benign

0.18

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Benign

0.69

MetaRNN

Benign

0.021

MetaSVM

Uncertain

0.074

MutationAssessor

Benign

1.3

PrimateAI

Uncertain

0.76

PROVEAN

Benign

-1.6

REVEL

Uncertain

0.61

Sift

Benign

0.16

Sift4G

Benign

0.42

Polyphen

0.41

Vest4

0.90

MVP

0.83

MPC

0.47

ClinPred

0.12

GERP RS

4.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.17

gMVP

0.83

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over