Genetic Variant ELN:c.1096+29_1096+50delGTGTGTGTGTGTGTGTGTGTGT (chr7-74053320-CTGTGTGTGTGTGTGTGTGTGTG-C) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP6_ModerateBS2

The NM_000501.4(ELN):c.1096+29_1096+50delGTGTGTGTGTGTGTGTGTGTGT variant causes a intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000493 in 1,418,614 control chromosomes in the GnomAD database, with no homozygous occurrence. It is difficult to determine the true allele frequency of this variant because it is of type DEL_BIG, and the frequency of such variant types in population databases may be underestimated and unreliable. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: not found (cov: 0)

Exomes 𝑓: 0.0000049 ( 0 hom. )

Consequence

ELN
NM_000501.4 intron

Scores

Not classified

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 1.33

Publications

3 publications found

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 Gene-Disease associations (from GenCC):

cutis laxa, autosomal dominant 1
Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, Genomics England PanelApp, G2P
supravalvular aortic stenosis
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
autosomal dominant cutis laxa
Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
familial thoracic aortic aneurysm and aortic dissection
Inheritance: AD Classification: LIMITED Submitted by: Ambry Genetics

ELN links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -6 ACMG points.

BP6

Variant 7-74053320-CTGTGTGTGTGTGTGTGTGTGTG-C is Benign according to our data. Variant chr7-74053320-CTGTGTGTGTGTGTGTGTGTGTG-C is described in ClinVar as Likely_benign. ClinVar VariationId is 1493958.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAdExome4 at 7 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ELN	NM_000501.4 link	c.1096+29_1096+50delGTGTGTGTGTGTGTGTGTGTGT		intron_variant	Intron 18 of 32	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.1096+12_1096+33delTGTGTGTGTGTGTGTGTGTGTG		intron_variant	Intron 18 of 32	1	NM_000501.4	ENSP00000252034.7		P15502-2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000493

AC:

AN:

1418614

Hom.:

AF XY:

0.00000711

AC XY:

AN XY:

703072

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

32370

American (AMR)

AF:

0.00

AC:

AN:

39504

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25306

East Asian (EAS)

AF:

0.0000265

AC:

AN:

37718

South Asian (SAS)

AF:

0.00

AC:

AN:

82512

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49148

Middle Eastern (MID)

AF:

0.00

AC:

AN:

4234

European-Non Finnish (NFE)

AF:

0.00000551

AC:

AN:

1089286

Other (OTH)

AF:

0.00

AC:

AN:

58536

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.496

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome 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

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

744

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Supravalvar aortic stenosis

Benign:1

Feb 17, 2024

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

PhyloP100

1.3

Splicing

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

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over