Genetic Variant ELN:p.Gly478Glu (chr7-74059886-G-A) – ACMG Classification: Uncertain_significance (3 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3

The NM_000501.4(ELN):c.1415G>A(p.Gly472Glu) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. 1/1 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

ELN
NM_000501.4 missense, splice_region

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.27

Variant links:

Genes affected

ELN (HGNC:3327): (elastin) This gene encodes a protein that is one of the two components of elastic fibers. Elastic fibers comprise part of the extracellular matrix and confer elasticity to organs and tissues including the heart, skin, lungs, ligaments, and blood vessels. The encoded protein is rich in hydrophobic amino acids such as glycine and proline, which form mobile hydrophobic regions bounded by crosslinks between lysine residues. Degradation products of the encoded protein, known as elastin-derived peptides or elastokines, bind the elastin receptor complex and other receptors and stimulate migration and proliferation of monocytes and skin fibroblasts. Elastokines can also contribute to cancer progression. Deletions and mutations in this gene are associated with supravalvular aortic stenosis (SVAS) and autosomal dominant cutis laxa. [provided by RefSeq, Aug 2017]

ELN links:

ELN-AS1 (HGNC:40212): (ELN antisense RNA 1)

ELN-AS1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 3 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.806

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ELN	NM_000501.4 link	c.1415G>A	p.Gly472Glu	missense_variant, splice_region_variant	Exon 23 of 33	ENST00000252034.12	NP_000492.2	P15502-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ELN	ENST00000252034.12 link	c.1415G>A	p.Gly472Glu	missense_variant, splice_region_variant	Exon 23 of 33	1	NM_000501.4	ENSP00000252034.7		P15502-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1053394

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

542312

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:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Supravalvar aortic stenosis

Uncertain:1

Feb 03, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with glutamic acid, which is acidic and polar, at codon 501 of the ELN protein (p.Gly501Glu). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with ELN-related conditions. Experimental studies and prediction algorithms are not available or were not evaluated, and the functional significance of this variant is currently unknown. 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

Pathogenic

0.94

BayesDel_addAF

Uncertain

0.087

BayesDel_noAF

Benign

-0.11

CADD

Uncertain

DANN

Benign

0.87

DEOGEN2

Benign

0.41

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

Eigen

Uncertain

0.58

Eigen_PC

Uncertain

0.29

FATHMM_MKL

Uncertain

0.83

LIST_S2

Benign

0.30

T;T;T;T;T;T;T;T;T;T;T;T;T;T;T

M_CAP

Benign

0.050

MetaRNN

Pathogenic

0.78

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

MetaSVM

Benign

-0.88

MutationAssessor

Uncertain

2.0

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

PrimateAI

Uncertain

0.64

PROVEAN

Uncertain

-3.3

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

REVEL

Uncertain

0.33

Sift

Pathogenic

0.0

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

Sift4G

Uncertain

0.0020

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

Polyphen

1.0

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

Vest4

0.87

MutPred

0.32

.;.;.;.;.;.;.;.;.;Loss of MoRF binding (P = 0.0456);.;.;.;.;.;

MVP

0.78

MPC

0.24

ClinPred

0.57

GERP RS

3.7

Varity_R

0.16

gMVP

0.49

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over