Genetic Variant NEDD4L:p.Arg247Gly (chr18-58329053-C-G) – ACMG Classification: Uncertain_significance (2 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001144967.3(NEDD4L):c.739C>G(p.Arg247Gly) 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 1,461,674 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R247Q) has been classified as Likely benign.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

NEDD4L
NM_001144967.3 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 0.105

Publications

0 publications found

Variant links:

Genes affected

NEDD4L (HGNC:7728): (NEDD4 like E3 ubiquitin protein ligase) This gene encodes a member of the Nedd4 family of HECT domain E3 ubiquitin ligases. HECT domain E3 ubiquitin ligases transfer ubiquitin from E2 ubiquitin-conjugating enzymes to protein substrates, thus targeting specific proteins for lysosomal degradation. The encoded protein mediates the ubiquitination of multiple target substrates and plays a critical role in epithelial sodium transport by regulating the cell surface expression of the epithelial sodium channel, ENaC. Single nucleotide polymorphisms in this gene may be associated with essential hypertension. Alternatively spliced transcript variants encoding multiple isoforms have been observed for this gene. [provided by RefSeq, Mar 2012]

NEDD4L Gene-Disease associations (from GenCC):

periventricular nodular heterotopia 7
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), ClinGen, Ambry Genetics, G2P
periventricular nodular heterotopia
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

NEDD4L links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
NEDD4L	NM_001144967.3 link	c.739C>G	p.Arg247Gly	missense_variant	Exon 10 of 31	ENST00000400345.8	NP_001138439.1	Q96PU5-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
NEDD4L	ENST00000400345.8 link	c.739C>G	p.Arg247Gly	missense_variant	Exon 10 of 31	1	NM_001144967.3	ENSP00000383199.2		Q96PU5-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461674

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

727114

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:

44722

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:

53388

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

8.99e-7

AC:

AN:

1111854

Other (OTH)

AF:

0.00

AC:

AN:

60370

⚠️ 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

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.71

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Uncertain

-0.050

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Uncertain

0.65

.;D;.;.;.;.;.;.;.;.;T;.;T

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.77

FATHMM_MKL

Uncertain

0.79

LIST_S2

Benign

0.85

D;D;D;D;T;.;D;D;T;.;D;D;D

M_CAP

Benign

0.084

MetaRNN

Uncertain

0.50

D;D;D;D;D;D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.90

MutationAssessor

Uncertain

2.0

M;M;M;M;.;.;.;.;.;.;.;.;.

PhyloP100

0.10

PrimateAI

Uncertain

0.77

PROVEAN

Uncertain

-2.5

D;D;D;D;D;D;D;.;D;D;.;.;.

REVEL

Benign

0.22

Sift

Uncertain

0.027

D;D;D;T;D;D;D;.;D;D;.;.;.

Sift4G

Benign

0.067

T;T;T;T;T;T;T;T;T;T;D;.;T

Polyphen

1.0

D;B;B;D;.;.;B;B;.;.;.;.;.

Vest4

0.87

MVP

0.68

MPC

0.91

ClinPred

0.95

GERP RS

-3.3

Varity_R

0.26

gMVP

0.67

Mutation Taster

=30/70

disease causing

(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

ClinVar

Computational scores

Splicing

Publications

Other links and lift over