chr2-169362383-G-T

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_004525.3(LRP2):c.17C>A(p.Ala6Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000128 in 1,565,756 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: 𝑓 0.0000066 ( 0 hom., cov: 33)

Exomes 𝑓: 7.1e-7 ( 0 hom. )

Consequence

LRP2
NM_004525.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 1.07

Publications

0 publications found

Variant links:

Genes affected

LRP2 (HGNC:6694): (LDL receptor related protein 2) The protein encoded by this gene, low density lipoprotein-related protein 2 (LRP2) or megalin, is a multi-ligand endocytic receptor that is expressed in many different tissues but primarily in absorptive epithilial tissues such as the kidney. This glycoprotein has a large amino-terminal extracellular domain, a single transmembrane domain, and a short carboxy-terminal cytoplasmic tail. The extracellular ligand-binding-domains bind diverse macromolecules including albumin, apolipoproteins B and E, and lipoprotein lipase. The LRP2 protein is critical for the reuptake of numerous ligands, including lipoproteins, sterols, vitamin-binding proteins, and hormones. This protein also has a role in cell-signaling; extracellular ligands include parathyroid horomones and the morphogen sonic hedgehog while cytosolic ligands include MAP kinase scaffold proteins and JNK interacting proteins. Recycling of this membrane receptor is regulated by phosphorylation of its cytoplasmic domain. Mutations in this gene cause Donnai-Barrow syndrome (DBS) and facio-oculoacoustico-renal syndrome (FOAR).[provided by RefSeq, Aug 2009]

LRP2 Gene-Disease associations (from GenCC):

Donnai-Barrow syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Orphanet, G2P, Labcorp Genetics (formerly Invitae)
Stickler syndrome
Inheritance: AD Classification: MODERATE Submitted by: Genomics England PanelApp
intellectual disability
Inheritance: AD Classification: LIMITED Submitted by: G2P
congenital heart disease
Inheritance: AR Classification: NO_KNOWN Submitted by: ClinGen

LRP2 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.30640078).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004525.3. 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
	LRP2	NM_004525.3	MANE Select	c.17C>A	p.Ala6Glu	missense	Exon 1 of 79	NP_004516.2	P98164

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	LRP2	ENST00000649046.1	MANE Select	c.17C>A	p.Ala6Glu	missense	Exon 1 of 79	ENSP00000496870.1	P98164
	LRP2	ENST00000443831.1	TSL:2	c.17C>A	p.Ala6Glu	missense	Exon 1 of 23	ENSP00000409813.1	E9PC35

Frequencies

GnomAD3 genomes

AF:

0.00000657

AC:

AN:

152168

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00

GnomAD4 exome

AF:

7.07e-7

AC:

AN:

1413588

Hom.:

Cov.:

AF XY:

0.00000143

AC XY:

AN XY:

699400

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:

32240

American (AMR)

AF:

0.00

AC:

AN:

39304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25326

East Asian (EAS)

AF:

0.00

AC:

AN:

36694

South Asian (SAS)

AF:

0.00

AC:

AN:

80300

European-Finnish (FIN)

AF:

0.00

AC:

AN:

45806

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5702

European-Non Finnish (NFE)

AF:

9.18e-7

AC:

AN:

1089604

Other (OTH)

AF:

0.00

AC:

AN:

58612

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.225

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.00000657

AC:

AN:

152168

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74332

show subpopulations

African (AFR)

AF:

0.0000241

AC:

AN:

41458

American (AMR)

AF:

0.00

AC:

AN:

15292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5164

South Asian (SAS)

AF:

0.00

AC:

AN:

4832

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10620

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

68010

Other (OTH)

AF:

0.00

AC:

AN:

2094

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome 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

Alfa

AF:

0.00

Hom.:

ClinVar

ClinVar submissions

Significance:Uncertain significance

Revision:criteria provided, single submitter

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.26

BayesDel_addAF

Uncertain

0.11

BayesDel_noAF

Uncertain

-0.080

CADD

Benign

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.11

Eigen

Benign

-0.61

Eigen_PC

Benign

-0.66

FATHMM_MKL

Benign

0.14

LIST_S2

Benign

0.48

M_CAP

Pathogenic

0.64

MetaRNN

Benign

0.31

MetaSVM

Uncertain

-0.18

MutationAssessor

Benign

1.4

PhyloP100

1.1

PrimateAI

Uncertain

0.62

PROVEAN

Benign

-0.59

REVEL

Uncertain

0.33

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0070

Polyphen

0.44

Vest4

0.23

MutPred

0.54

Gain of relative solvent accessibility (P = 0.09)

MVP

0.38

MPC

0.83

ClinPred

0.55

GERP RS

2.2

PromoterAI

0.31

Neutral

(source)

Varity_R

0.17

gMVP

0.58

Mutation Taster

=80/20

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

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over