11-68390032-G-A

Position:

chr11-68390032-G-A

Variant summary

Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PS1_ModeratePM1PM2PP2PP3_StrongPP5_Moderate

The NM_002335.4(LRP5):c.1564G>A(p.Ala522Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,888 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Pathogenic (★). Another nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin UniProt. Synonymous variant affecting the same amino acid position (i.e. A522A) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

LRP5
NM_002335.4 missense

Scores

Clinical Significance

Pathogenic criteria provided, single submitter P:1

Conservation

PhyloP100: 9.81

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:

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ACMG classification

Classification made for transcript

Verdict is Pathogenic. Variant got 13 ACMG points.

PS1

Transcript NM_002335.4 (LRP5) is affected with MISSENSE_VARIANT having same AA change as one Pathogenic present in UniProt

PM1

In a repeat LDL-receptor class B 9 (size 42) in uniprot entity LRP5_HUMAN there are 20 pathogenic changes around while only 0 benign (100%) in NM_002335.4

PM2

Very rare variant in population databases, with high coverage;

PP2

Missense variant in gene, where missense usually causes diseases (based on misZ statistic), LRP5. . Gene score misZ 1.6684 (greater than the threshold 3.09). Trascript score misZ 3.6986 (greater than threshold 3.09). GenCC has associacion of gene with 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.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.977

PP5

Variant 11-68390032-G-A is Pathogenic according to our data. Variant chr11-68390032-G-A is described in ClinVar as [Pathogenic]. Clinvar id is 1455445.Status of the report is criteria_provided_single_submitter, 1 stars. Variant chr11-68390032-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LRP5	NM_002335.4 linkuse as main transcript	c.1564G>A	p.Ala522Thr	missense_variant	7/23	ENST00000294304.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LRP5	ENST00000294304.12 linkuse as main transcript	c.1564G>A	p.Ala522Thr	missense_variant	7/23	1	NM_002335.4	P1
LRP5	ENST00000529993.5 linkuse as main transcript	c.1412+3320G>A		intron_variant, NMD_transcript_variant		1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251006

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135738

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461888

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.0000299

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

8.99e-7

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

Pathogenic, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jul 28, 2021

Experimental studies have shown that this missense change affects LRP5 protein function (PMID: 17955262). For these reasons, this variant has been classified as Pathogenic. 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 expected to disrupt LRP5 protein function. This missense change has been observed in individual(s) with autosomal dominant and autosomal recessive familial exudative vitreoretinopathy (PMID: 15981244, 25711638). It has also been observed to segregate with disease in related individuals. This variant is not present in population databases (ExAC no frequency). This sequence change replaces alanine with threonine at codon 522 of the LRP5 protein (p.Ala522Thr). The alanine residue is highly conserved and there is a small physicochemical difference between alanine and threonine. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.96

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.47

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Pathogenic

0.83

Eigen

Pathogenic

0.75

Eigen_PC

Uncertain

0.66

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.81

M_CAP

Pathogenic

0.71

MetaRNN

Pathogenic

0.98

MetaSVM

Pathogenic

1.1

MutationAssessor

Uncertain

2.9

MutationTaster

Benign

1.0

PrimateAI

Uncertain

0.69

PROVEAN

Uncertain

-3.1

REVEL

Pathogenic

0.91

Sift

Uncertain

0.0020

Sift4G

Uncertain

0.011

Polyphen

1.0

Vest4

0.82

MutPred

0.85

Loss of catalytic residue at A522 (P = 0.0593);

MVP

0.94

MPC

1.2

ClinPred

0.95

GERP RS

3.3

Varity_R

0.71

gMVP

0.91

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

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