NM_002335.4:c.31C>A

Variant names:

• chr11-68312745-C-A
• rs1272970460
• NM_002335.4:c.31C>A

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 3P and 2B. PM2 PP2 BP4_Moderate

The NM_002335.4(LRP5):​c.31C>A​(p.Pro11Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000539 in 927,298 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 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. P11S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 31)
  • Exomes 𝑓: 0.0000054 (0 hom.)
• Consequence: LRP5 NM_002335.4 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -2.97
• Publications: 0 publications found

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 Gene-Disease associations (from GenCC):

• bone mineral density quantitative trait locus 1

  Inheritance: AD Classification: DEFINITIVE Submitted by: G2P
• LRP5-related exudative vitreoretinopathy

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• osteoporosis-pseudoglioma syndrome

  Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae), G2P
• exudative vitreoretinopathy 4

  Inheritance: Unknown, AD, SD Classification: DEFINITIVE, STRONG Submitted by: Laboratory for Molecular Medicine, Labcorp Genetics (formerly Invitae), G2P, Ambry Genetics
• autosomal dominant osteosclerosis, Worth type

  Inheritance: AD Classification: STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Orphanet, Genomics England PanelApp
• polycystic liver disease 4 with or without kidney cysts

  Inheritance: AD Classification: STRONG, LIMITED Submitted by: ClinGen, Labcorp Genetics (formerly Invitae), Genomics England PanelApp
• autosomal dominant osteopetrosis 1

  Inheritance: AD Classification: MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet
• exudative vitreoretinopathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• hyperostosis corticalis generalisata

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• osteosclerosis-developmental delay-craniosynostosis syndrome

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• polycystic liver disease 1

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Uncertain_significance. The variant received 1 ACMG points.

• 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, autosomal dominant osteopetrosis 1, osteoporosis-pseudoglioma syndrome, autosomal dominant osteosclerosis, Worth type, polycystic liver disease 4 with or without kidney cysts, bone mineral density quantitative trait locus 1, osteosclerosis-developmental delay-craniosynostosis syndrome, hyperostosis corticalis generalisata, exudative vitreoretinopathy, polycystic liver disease 1, inherited retinal dystrophy.
• BP4: Computational evidence support a benign effect (MetaRNN=0.2560244).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_002335.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRP5	NM_002335.4	MANE Select	c.31C>A	p.Pro11Thr	missense	Exon 1 of 23	NP_002326.2	O75197
	LRP5	NM_001291902.2		c.-1735C>A		5_prime_UTR	Exon 1 of 23	NP_001278831.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRP5	ENST00000294304.12	TSL:1 MANE Select	c.31C>A	p.Pro11Thr	missense	Exon 1 of 23	ENSP00000294304.6	O75197
	LRP5	ENST00000529993.5	TSL:1	n.31C>A		non_coding_transcript_exon	Exon 1 of 23	ENSP00000436652.1	E9PHY1
	LRP5	ENST00000909991.1		c.31C>A	p.Pro11Thr	missense	Exon 1 of 23	ENSP00000580050.1

Frequencies

GnomAD3 genomes Cov.: 31

GnomAD4 exome AF: 0.00000539 AC: 5 AN: 927298 Hom.: 0 Cov.: 28 AF XY: 0.00000451 AC XY: 2 AN XY: 443874

African (AFR) AF: 0.00 AC: 0 AN: 17368

American (AMR) AF: 0.00 AC: 0 AN: 7168

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 8478

East Asian (EAS) AF: 0.00 AC: 0 AN: 5902

South Asian (SAS) AF: 0.00 AC: 0 AN: 29862

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 6214

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 2010

European-Non Finnish (NFE) AF: 0.00000611 AC: 5 AN: 818628

Other (OTH) AF: 0.00 AC: 0 AN: 31668

GnomAD4 genome Cov.: 31

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.092
BayesDel_addAF	Benign	-0.0097	T
BayesDel_noAF	Benign	-0.25
CADD	Benign	8.7
DANN	Benign	0.62
DEOGEN2	Benign	0.27	T
Eigen	Benign	-0.46
Eigen_PC	Benign	-0.59
FATHMM_MKL	Benign	0.026	N
LIST_S2	Benign	0.31	T
M_CAP	Pathogenic	0.66	D
MetaRNN	Benign	0.26	T
MetaSVM	Uncertain	-0.16	T
MutationAssessor	Benign	0.55	N
PhyloP100		-3.0
PrimateAI	Uncertain	0.74	T
PROVEAN	Benign	0.45	N
REVEL	Uncertain	0.30
Sift	Pathogenic	0.0	D
Sift4G	Benign	0.79	T
Polyphen		0.91	P
Vest4		0.11
MutPred		0.50		Loss of disorder (P = 0.0079)
MVP		0.35
MPC		0.46
ClinPred		0.14	T
GERP RS		0.60
PromoterAI		-0.0083	Neutral
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.16
gMVP		0.36
Mutation Taster		=91/9	polymorphism

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

Other links and lift over

dbSNP: rs1272970460; hg19: chr11-68080213;