rs1127291

Positions:

• chr11-68446521-C-G
• chr11-68446521-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_002335.4(LRP5):​c.4574C>G​(p.Ala1525Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,492 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1525V) has been classified as Benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: LRP5 NM_002335.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 0.511

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 Uncertain_significance. Variant got 1 ACMG points.

• 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.
• BP4: Computational evidence support a benign effect (MetaRNN=0.17400998).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
LRP5	NM_002335.4	c.4574C>G	p.Ala1525Gly	missense_variant	22/23	ENST00000294304.12	NP_002326.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
LRP5	ENST00000294304.12	c.4574C>G	p.Ala1525Gly	missense_variant	22/23	1	NM_002335.4	ENSP00000294304.6
LRP5	ENST00000529993.5	n.*3180C>G		non_coding_transcript_exon_variant	22/23	1		ENSP00000436652.1
LRP5	ENST00000529993.5	n.*3180C>G		3_prime_UTR_variant	22/23	1		ENSP00000436652.1
LRP5	ENST00000529702.1	c.242C>G	p.Ala81Gly	missense_variant	3/4	3		ENSP00000435315.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461492 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 727078

Gnomad4 AFR exome AF: 0.00

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: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.089
BayesDel_addAF	Benign	-0.0041	T
BayesDel_noAF	Benign	-0.24
CADD	Benign	14
DANN	Benign	0.82
DEOGEN2	Benign	0.37	T
Eigen	Benign	-0.49
Eigen_PC	Benign	-0.57
FATHMM_MKL	Benign	0.26	N
LIST_S2	Uncertain	0.90	D
M_CAP	Uncertain	0.098	D
MetaRNN	Benign	0.17	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.2	L
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-1.1	N
REVEL	Benign	0.14
Sift	Benign	0.27	T
Sift4G	Benign	0.33	T
Polyphen		0.081	B
Vest4		0.19
MutPred		0.12		Loss of relative solvent accessibility (P = 0.0071);
MVP		0.50
MPC		0.46
ClinPred		0.29	T
GERP RS		3.7
Varity_R		0.073
gMVP		0.22

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: rs1127291; hg19: chr11-68213989;