18-2847235-C-A

Position:

• chr18-2847235-C-A

Variant summary

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

The NM_032048.3(EMILIN2):​c.47C>A​(p.Ala16Glu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/21 in silico tools predict a benign outcome for this variant. 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: EMILIN2 NM_032048.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 0.642

Genes affected

EMILIN2 (HGNC:19881): (elastin microfibril interfacer 2) Predicted to enable extracellular matrix constituent conferring elasticity. Predicted to be involved in cell adhesion. Located in extracellular region. [provided by Alliance of Genome Resources, Apr 2022]

(HGNC:):

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=0.16982237).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EMILIN2	NM_032048.3	c.47C>A	p.Ala16Glu	missense_variant	1/8	ENST00000254528.4	NP_114437.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EMILIN2	ENST00000254528.4	c.47C>A	p.Ala16Glu	missense_variant	1/8	1	NM_032048.3	ENSP00000254528	P1
	ENST00000693116.1	n.78-467G>T		intron_variant, non_coding_transcript_variant

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1116288 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 537932

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.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Mar 26, 2024

The c.47C>A (p.A16E) alteration is located in exon 1 (coding exon 1) of the EMILIN2 gene. This alteration results from a C to A substitution at nucleotide position 47, causing the alanine (A) at amino acid position 16 to be replaced by a glutamic acid (E). 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	Benign	0.31
BayesDel_addAF	Benign	-0.097	T
BayesDel_noAF	Benign	-0.38
CADD	Benign	19
DANN	Benign	0.71
DEOGEN2	Benign	0.019	T
Eigen	Benign	-0.68
Eigen_PC	Benign	-0.73
FATHMM_MKL	Benign	0.62	D
LIST_S2	Benign	0.49	T
M_CAP	Benign	0.073	D
MetaRNN	Benign	0.17	T
MetaSVM	Benign	-1.1	T
MutationAssessor	Benign	1.9	L
MutationTaster	Benign	1.0	N
PrimateAI	Pathogenic	0.79	T
PROVEAN	Benign	-1.0	N
REVEL	Benign	0.11
Sift	Uncertain	0.024	D
Sift4G	Uncertain	0.029	D
Polyphen		0.65	P
Vest4		0.39
MutPred		0.44		Gain of loop (P = 0.0079);
MVP		0.22
MPC		0.098
ClinPred		0.65	D
GERP RS		1.6
Varity_R		0.21
gMVP		0.58

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

LitVar

Other links and lift over

dbSNP: rs1180626147; hg19: chr18-2847233;