NM_002334.4:c.4144C>T

Variant names:

Variant summary

Our verdict is Likely benign. The variant received -3 ACMG points: 0P and 3B. BP4_ModerateBS1_Supporting

The NM_002334.4(LRP4):c.4144C>T(p.Pro1382Ser) variant causes a missense change. The variant allele was found at a frequency of 0.000028 in 1,461,874 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000028 ( 0 hom. )

Consequence

LRP4
NM_002334.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 6.40

Publications

3 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_benign. The variant received -3 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.20092916).

BS1

Variant frequency is greater than expected in population sas. GnomAdExome4 allele frequency = 0.000028 (41/1461874) while in subpopulation SAS AF = 0.000406 (35/86258). AF 95% confidence interval is 0.0003. There are 0 homozygotes in GnomAdExome4. There are 31 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
LRP4	NM_002334.4 link	c.4144C>T	p.Pro1382Ser	missense_variant	Exon 28 of 38	ENST00000378623.6	NP_002325.2	O75096
LRP4	XM_017017734.2 link	c.4144C>T	p.Pro1382Ser	missense_variant	Exon 28 of 39		XP_016873223.1
LRP4	XM_011520103.3 link	c.3340C>T	p.Pro1114Ser	missense_variant	Exon 22 of 32		XP_011518405.1
LRP4	XM_011520104.3 link	c.1909C>T	p.Pro637Ser	missense_variant	Exon 13 of 23		XP_011518406.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
LRP4	ENST00000378623.6 link	c.4144C>T	p.Pro1382Ser	missense_variant	Exon 28 of 38	1	NM_002334.4	ENSP00000367888.1		O75096

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.0000557

AC:

AN:

251330

AF XY:

0.0000736

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000280

AC:

AN:

1461874

Hom.:

Cov.:

AF XY:

0.0000426

AC XY:

AN XY:

727238

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.000406

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111996

Other (OTH)

AF:

0.0000828

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.507

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.:

Alfa

AF:

0.0000868

Hom.:

ExAC

AF:

0.0000412

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

Cenani-Lenz syndactyly syndrome;C3280402:Sclerosteosis 2;C4225377:Congenital myasthenic syndrome 17

Uncertain:2

Dec 15, 2021

Fulgent Genetics, Fulgent Genetics

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Oct 17, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces proline, which is neutral and non-polar, with serine, which is neutral and polar, at codon 1382 of the LRP4 protein (p.Pro1382Ser). This variant is present in population databases (rs765240067, gnomAD 0.04%). This variant has not been reported in the literature in individuals affected with LRP4-related conditions. ClinVar contains an entry for this variant (Variation ID: 573237). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt LRP4 protein function with a negative predictive value of 80%. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.13

BayesDel_addAF

Benign

-0.10

BayesDel_noAF

Uncertain

-0.060

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Benign

0.14

Eigen

Benign

-0.040

Eigen_PC

Benign

0.18

FATHMM_MKL

Pathogenic

0.97

LIST_S2

Uncertain

0.93

M_CAP

Benign

0.027

MetaRNN

Benign

0.20

MetaSVM

Uncertain

-0.13

MutationAssessor

Benign

1.1

PhyloP100

6.4

PrimateAI

Uncertain

0.67

PROVEAN

Benign

-0.56

REVEL

Uncertain

0.35

Sift

Benign

0.67

Sift4G

Benign

0.67

Polyphen

0.0080

Vest4

0.49

MVP

0.70

MPC

0.57

ClinPred

0.34

GERP RS

5.7

Varity_R

0.11

gMVP

0.46

Mutation Taster

=67/33

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over