Genetic Variant LRP4:p.Gly169Cys (chr11-46899429-C-A) – ACMG Classification: Likely_pathogenic (6 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 6 ACMG points: 6P and 0B. PM2PP3_Strong

The NM_002334.4(LRP4):c.505G>T(p.Gly169Cys) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,814 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. G169S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

LRP4
NM_002334.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 3.88

Publications

0 publications found

Variant links:

Genes affected

LRP4 (HGNC:6696): (LDL receptor related protein 4) This gene encodes a member of the low-density lipoprotein receptor-related protein family. The encoded protein may be a regulator of Wnt signaling. Mutations in this gene are associated with Cenani-Lenz syndrome. [provided by RefSeq, May 2010]

LRP4 Gene-Disease associations (from GenCC):

Cenani-Lenz syndactyly syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, Ambry Genetics, ClinGen, Labcorp Genetics (formerly Invitae), G2P
congenital myasthenic syndrome 17
Inheritance: AR Classification: STRONG, LIMITED Submitted by: ClinGen, PanelApp Australia, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
postsynaptic congenital myasthenic syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
sclerosteosis
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
sclerosteosis 2
Inheritance: SD Classification: LIMITED Submitted by: Ambry Genetics

LRP4 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_pathogenic. The variant received 6 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.983

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRP4	NM_002334.4 link	c.505G>T	p.Gly169Cys	missense_variant	Exon 5 of 38	ENST00000378623.6	NP_002325.2	O75096
LRP4	XM_017017734.2 link	c.505G>T	p.Gly169Cys	missense_variant	Exon 5 of 39		XP_016873223.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRP4	ENST00000378623.6 link	c.505G>T	p.Gly169Cys	missense_variant	Exon 5 of 38	1	NM_002334.4	ENSP00000367888.1		O75096
LRP4	ENST00000534404.1 link	c.358G>T	p.Gly120Cys	missense_variant	Exon 4 of 4	5		ENSP00000434763.1		E9PNJ5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461814

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

727218

show subpopulations

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53380

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111974

Other (OTH)

AF:

0.00

AC:

AN:

60396

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0.000000), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.375

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.94

BayesDel_addAF

Pathogenic

0.38

BayesDel_noAF

Pathogenic

0.31

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Pathogenic

0.85

D;D

Eigen

Pathogenic

0.82

Eigen_PC

Pathogenic

0.68

FATHMM_MKL

Uncertain

0.84

LIST_S2

Uncertain

0.97

D;D

M_CAP

Pathogenic

0.35

MetaRNN

Pathogenic

0.98

D;D

MetaSVM

Pathogenic

1.1

MutationAssessor

Pathogenic

4.2

H;.

PhyloP100

3.9

PrimateAI

Pathogenic

0.90

PROVEAN

Pathogenic

-5.0

D;D

REVEL

Pathogenic

0.81

Sift

Uncertain

0.0040

D;D

Sift4G

Uncertain

0.0020

D;.

Polyphen

1.0

D;.

Vest4

0.77

MutPred

0.90

Loss of phosphorylation at Y166 (P = 0.1077);.;

MVP

0.93

MPC

1.5

ClinPred

1.0

GERP RS

5.5

Varity_R

0.91

gMVP

0.88

Mutation Taster

=59/41

polymorphism

(source)

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

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over