X-154379516-A-G

Position:

• chrX-154379516-A-G

Variant summary

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

The NM_000117.3(EMD):​c.32A>G​(p.Glu11Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. E11D) has been classified as Likely benign.

• Frequency:
  • Genomes: not found (cov: 26)
  • Exomes 𝑓: 0.0 (0 hom. 0 hem.)
  • Failed GnomAD Quality Control
• Consequence: EMD NM_000117.3 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 1.94

Genes affected

EMD (HGNC:3331): (emerin) Emerin is a serine-rich nuclear membrane protein and a member of the nuclear lamina-associated protein family. It mediates membrane anchorage to the cytoskeleton. Dreifuss-Emery muscular dystrophy is an X-linked inherited degenerative myopathy resulting from mutation in the emerin gene. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EMD	NM_000117.3	c.32A>G	p.Glu11Gly	missense_variant	1/6	ENST00000369842.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EMD	ENST00000369842.9	c.32A>G	p.Glu11Gly	missense_variant	1/6	1	NM_000117.3	P1

Frequencies

GnomAD3 genomes Cov.: 26

GnomAD4 exome Data not reliable, filtered out with message: AC0 AF: 0.00 AC: 0 AN: 1056556 Hom.: 0 Cov.: 31 AF XY: 0.00 AC XY: 0 AN XY: 345370

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.: 26

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

X-linked Emery-Dreifuss muscular dystrophy Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Jun 15, 2022

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. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). This variant has not been reported in the literature in individuals affected with EMD-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces glutamic acid, which is acidic and polar, with glycine, which is neutral and non-polar, at codon 11 of the EMD protein (p.Glu11Gly). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.56
BayesDel_addAF	Uncertain	0.16	D
BayesDel_noAF	Uncertain	-0.010
CADD	Uncertain	25
DANN	Benign	0.97
DEOGEN2	Uncertain	0.59	D;T
FATHMM_MKL	Benign	0.56	D
LIST_S2	Benign	0.67	T;T
M_CAP	Pathogenic	0.98	D
MetaRNN	Uncertain	0.73	D;D
MetaSVM	Benign	-0.43	T
MutationAssessor	Uncertain	2.2	M;.
MutationTaster	Benign	0.98	D;D
PrimateAI	Uncertain	0.72	T
PROVEAN	Pathogenic	-4.6	D;D
REVEL	Uncertain	0.45
Sift	Pathogenic	0.0	D;D
Sift4G	Uncertain	0.021	D;D
Polyphen		1.0	D;.
Vest4		0.27
MutPred		0.81		Loss of stability (P = 0.0088);Loss of stability (P = 0.0088);
MVP		0.90
MPC		1.0
ClinPred		0.99	D
GERP RS		4.0
Varity_R		0.90
gMVP		0.87

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: chrX-153607876;