18-58044679-G-A

Position:

• chr18-58044679-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_001144967.3(NEDD4L):​c.19G>A​(p.Glu7Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000138 in 1,453,284 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 (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. E7D) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: NEDD4L NM_001144967.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 3.25

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]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.20831615).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
NEDD4L	NM_001144967.3	c.19G>A	p.Glu7Lys	missense_variant	1/31	ENST00000400345.8

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
NEDD4L	ENST00000400345.8	c.19G>A	p.Glu7Lys	missense_variant	1/31	1	NM_001144967.3	P3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000138 AC: 2 AN: 1453284 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 722900

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00000180

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Inborn genetic diseases Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Apr 26, 2024

The c.19G>A (p.E7K) alteration is located in exon 1 (coding exon 1) of the NEDD4L gene. This alteration results from a G to A substitution at nucleotide position 19, causing the glutamic acid (E) at amino acid position 7 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
BayesDel_addAF	Uncertain	0.044	T
BayesDel_noAF	Benign	-0.17
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.24	.;T;.;.;.;.
Eigen	Benign	-0.40
Eigen_PC	Benign	-0.26
FATHMM_MKL	Benign	0.66	D
LIST_S2	Uncertain	0.86	D;D;D;.;D;D
M_CAP	Pathogenic	0.37	D
MetaRNN	Benign	0.21	T;T;T;T;T;T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	0.0	N;N;.;.;N;N
MutationTaster	Benign	0.94	D;D;D;D;N;N
PrimateAI	Pathogenic	0.88	D
PROVEAN	Benign	-1.1	N;N;.;.;N;N
REVEL	Benign	0.21
Sift	Uncertain	0.026	D;D;.;.;D;D
Sift4G	Benign	0.56	T;T;T;.;T;T
Polyphen		0.0020	B;B;.;.;B;.
Vest4		0.29
MutPred		0.36		Gain of ubiquitination at E7 (P = 0.0082);Gain of ubiquitination at E7 (P = 0.0082);Gain of ubiquitination at E7 (P = 0.0082);Gain of ubiquitination at E7 (P = 0.0082);Gain of ubiquitination at E7 (P = 0.0082);Gain of ubiquitination at E7 (P = 0.0082);
MVP		0.75
MPC		1.1
ClinPred		0.64	D
GERP RS		3.5
Varity_R		0.45
gMVP		0.22

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr18-55711911;