rs61734583

Positions:

• chr7-74056389-C-G
• chr7-74056389-C-T

Variant summary

Our verdict is Benign. Variant got -16 ACMG points: 0P and 16B. BP6_Very_Strong BS1 BS2

The ENST00000252034.12(ELN):​c.1269C>G​(p.Val423=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000257 in 1,613,344 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 Likely benign (★★). Synonymous variant affecting the same amino acid position (i.e. V423V) has been classified as Likely benign.

• Frequency:
  • Genomes: 𝑓 0.00031 (0 hom., cov: 32)
  • Exomes 𝑓: 0.00025 (0 hom.)
• Consequence: ELN ENST00000252034.12 synonymous
• Clinical Significance: Likely benign criteria provided, multiple submitters, no conflicts B:10
• Conservation: PhyloP100: -3.05

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]

ACMG classification

Verdict is Benign. Variant got -16 ACMG points.

• BP6: Variant 7-74056389-C-G is Benign according to our data. Variant chr7-74056389-C-G is described in ClinVar as [Likely_benign]. Clinvar id is 43583.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr7-74056389-C-G is described in Lovd as [Likely_benign].
• BS1: Variant frequency is greater than expected in population nfe. gnomad4 allele frequency = 0.000309 (47/152048) while in subpopulation NFE AF= 0.000588 (40/67988). AF 95% confidence interval is 0.000444. There are 0 homozygotes in gnomad4. There are 14 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck.
• BS2: High AC in GnomAd4 at 47 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
ELN	NM_000501.4	c.1269C>G	p.Val423=	synonymous_variant	20/33	ENST00000252034.12	NP_000492.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
ELN	ENST00000252034.12	c.1269C>G	p.Val423=	synonymous_variant	20/33	1	NM_000501.4	ENSP00000252034	P4

Frequencies

GnomAD3 genomes AF: 0.000309 AC: 47 AN: 151930 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.000121

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.000131

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: 0.000588

Gnomad OTH AF: 0.00

GnomAD3 exomes AF: 0.000195 AC: 49 AN: 251480 Hom.: 0 AF XY: 0.000191 AC XY: 26 AN XY: 135914

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.000231

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad SAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.000360

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.000251 AC: 367 AN: 1461296 Hom.: 0 Cov.: 70 AF XY: 0.000234 AC XY: 170 AN XY: 726944

Gnomad4 AFR exome AF: 0.0000897

Gnomad4 AMR exome AF: 0.000224

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.0000749

Gnomad4 NFE exome AF: 0.000307

Gnomad4 OTH exome AF: 0.000149

GnomAD4 genome AF: 0.000309 AC: 47 AN: 152048 Hom.: 0 Cov.: 32 AF XY: 0.000188 AC XY: 14 AN XY: 74338

Gnomad4 AFR AF: 0.000121

Gnomad4 AMR AF: 0.000131

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.000588

Gnomad4 OTH AF: 0.00

Bravo AF: 0.000310

EpiCase AF: 0.000600

EpiControl AF: 0.000178

ClinVar

Significance: Likely benign

Submissions summary: Benign:10

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

not provided Benign:5

Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, Amsterdam University Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Jun 30, 2020	- -
Likely benign, no assertion criteria provided	clinical testing	Genome Diagnostics Laboratory, University Medical Center Utrecht	-	- -
Likely benign, no assertion criteria provided	clinical testing	Clinical Genetics DNA and cytogenetics Diagnostics Lab, Erasmus MC, Erasmus Medical Center	-	- -
Likely benign, criteria provided, single submitter	clinical testing	CeGaT Center for Human Genetics Tuebingen	Jun 01, 2024	ELN: BP7, BS2 -

Supravalvar aortic stenosis Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 27, 2024	- -
Likely benign, criteria provided, single submitter	clinical testing	Illumina Laboratory Services, Illumina	Apr 27, 2017	This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

not specified Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Jul 01, 2011

Val423Val in exon 20 of ELN: This variant is not expected to have clinical signi ficance because it does not alter an amino acid residue and is not located near a splice junction. -

Cutis laxa, autosomal dominant 1 Benign:1

Likely benign, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Apr 27, 2017

This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases allowed determination this variant is unlikely to cause disease. Therefore, this variant is classified as likely benign. -

ELN-related disorder Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

Dec 17, 2019

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
BayesDel_noAF	Benign	-0.75
CADD	Benign	7.8
DANN	Benign	0.74

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.40		Details are displayed if max score is > 0.2
DS_DG_spliceai		0.40		Position offset: -32

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

LitVar

Other links and lift over

dbSNP: rs61734583; hg19: chr7-73470719;