NM_002335.4:c.1142A>G

Variant names:

• chr11-68386442-A-G
• rs886040977
• NM_002335.4:c.1142A>G

Variant summary

Our verdict is Pathogenic. Variant got 13 ACMG points: 13P and 0B. PM1 PM2 PM5 PP2 PP3_Strong PP5_Moderate

The NM_002335.4(LRP5):​c.1142A>G​(p.Asp381Gly) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D381N) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 32)
• Consequence: LRP5 NM_002335.4 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: 7.12

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]

ACMG classification

Verdict is Pathogenic. Variant got 13 ACMG points.

• PM1: In a region_of_interest Beta-propeller 2 (size 261) in uniprot entity LRP5_HUMAN there are 85 pathogenic changes around while only 3 benign (97%) in NM_002335.4
• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.
• 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.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.952
• PP5: Variant 11-68386442-A-G is Pathogenic according to our data. Variant chr11-68386442-A-G is described in ClinVar as [Likely_pathogenic]. Clinvar id is 267412.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRP5	NM_002335.4	c.1142A>G	p.Asp381Gly	missense_variant	Exon 6 of 23	ENST00000294304.12	NP_002326.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRP5	ENST00000294304.12	c.1142A>G	p.Asp381Gly	missense_variant	Exon 6 of 23	1	NM_002335.4	ENSP00000294304.6
LRP5	ENST00000529993.5	n.1142A>G		non_coding_transcript_exon_variant	Exon 6 of 23	1		ENSP00000436652.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Osteoporosis with pseudoglioma Pathogenic:1

Aug 24, 2016

Genomic Research Center, Shahid Beheshti University of Medical Sciences

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

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Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.47	D
BayesDel_noAF	Pathogenic	0.43
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.89	D
Eigen	Pathogenic	0.78
Eigen_PC	Uncertain	0.63
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Benign	0.78	T
M_CAP	Pathogenic	0.96	D
MetaRNN	Pathogenic	0.95	D
MetaSVM	Pathogenic	1.0	D
MutationAssessor	Pathogenic	3.6	H
PrimateAI	Uncertain	0.73	T
PROVEAN	Pathogenic	-6.3	D
REVEL	Pathogenic	0.90
Sift	Pathogenic	0.0	D
Sift4G	Uncertain	0.0050	D
Polyphen		1.0	D
Vest4		0.74
MutPred		0.67		Loss of stability (P = 0.0629);
MVP		0.93
MPC		1.4
ClinPred		1.0	D
GERP RS		3.8
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.6
Varity_R		0.96
gMVP		0.96

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

Other links and lift over

dbSNP: rs886040977; hg19: chr11-68153910; COSMIC: COSV53724649;