rs80358305

Positions:

• chr11-68348188-C-T

Variant summary

Our verdict is Pathogenic. Variant got 10 ACMG points: 10P and 0B. PM1 PM2 PP2 PP3_Strong PP5

The NM_002335.4(LRP5):​c.433C>T​(p.Leu145Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,460,300 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 (no stars). Synonymous variant affecting the same amino acid position (i.e. L145L) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 33)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: LRP5 NM_002335.4 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:2
• Conservation: PhyloP100: 1.67

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 10 ACMG points.

• PM1: In a repeat LDL-receptor class B 2 (size 42) in uniprot entity LRP5_HUMAN there are 9 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, 0.984
• PP5: Variant 11-68348188-C-T is Pathogenic according to our data. Variant chr11-68348188-C-T is described in ClinVar as [Pathogenic]. Clinvar id is 6292.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chr11-68348188-C-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
LRP5	NM_002335.4	c.433C>T	p.Leu145Phe	missense_variant	2/23	ENST00000294304.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
LRP5	ENST00000294304.12	c.433C>T	p.Leu145Phe	missense_variant	2/23	1	NM_002335.4	P1
LRP5	ENST00000529993.5	c.433C>T	p.Leu145Phe	missense_variant, NMD_transcript_variant	2/23	1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460300 Hom.: 0 Cov.: 33 AF XY: 0.00000138 AC XY: 1 AN XY: 726564

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.0000504

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 33

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:2

Revision: no assertion criteria provided

Submissions by phenotype

Osteoporosis with pseudoglioma Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 01, 2010

- -

Exudative vitreoretinopathy 4, autosomal dominant Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Jan 01, 2010

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.82
BayesDel_addAF	Pathogenic	0.50	D
BayesDel_noAF	Pathogenic	0.48
CADD	Pathogenic	26
DANN	Uncertain	1.0
DEOGEN2	Pathogenic	0.93	D
Eigen	Uncertain	0.49
Eigen_PC	Uncertain	0.29
FATHMM_MKL	Uncertain	0.86	D
LIST_S2	Uncertain	0.91	D
M_CAP	Pathogenic	0.59	D
MetaRNN	Pathogenic	0.98	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Pathogenic	3.7	H
MutationTaster	Benign	1.0	A
PrimateAI	Uncertain	0.73	T
PROVEAN	Uncertain	-3.0	D
REVEL	Pathogenic	0.85
Sift	Uncertain	0.0020	D
Sift4G	Uncertain	0.0030	D
Polyphen		1.0	D
Vest4		0.95
MutPred		0.88		Loss of catalytic residue at L145 (P = 0.0928);
MVP		0.95
MPC		1.3
ClinPred		0.95	D
GERP RS		3.7
Varity_R		0.85
gMVP		0.82

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: rs80358305; hg19: chr11-68115656;