X-154379942-A-G

Variant names:

• chrX-154379942-A-G
• rs1557182355
• NM_000117.3:c.188A>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_000117.3(EMD):​c.188A>G​(p.Asp63Gly) 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. 3/3 splice prediction tools predict no significant impact on normal splicing. 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. D63Y) has been classified as Uncertain significance.

• Frequency: Genomes: not found (cov: 24)
• Consequence: EMD NM_000117.3 missense, splice_region
• Scores: Splicing: ADA: 0.004606
• Clinical Significance: Uncertain significance criteria provided, single submitter U:2
• Conservation: PhyloP100: 2.28
• Publications: 0 publications found

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]

EMD Gene-Disease associations (from GenCC):

• X-linked Emery-Dreifuss muscular dystrophy

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Orphanet
• heart conduction disease

  Inheritance: XL Classification: STRONG Submitted by: Genomics England PanelApp

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

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

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_000117.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EMD	NM_000117.3	MANE Select	c.188A>G	p.Asp63Gly	missense splice_region	Exon 3 of 6	NP_000108.1	P50402

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EMD	ENST00000369842.9	TSL:1 MANE Select	c.188A>G	p.Asp63Gly	missense splice_region	Exon 3 of 6	ENSP00000358857.4	P50402
	EMD	ENST00000933533.1		c.212A>G	p.Asp71Gly	missense	Exon 3 of 6	ENSP00000603592.1
	EMD	ENST00000933532.1		c.188A>G	p.Asp63Gly	missense splice_region	Exon 3 of 6	ENSP00000603591.1

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 24

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Emery-Dreifuss muscular dystrophy (1)
-	1	-	X-linked Emery-Dreifuss muscular dystrophy (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.21
PhyloP100		2.3
PromoterAI		0.0097	Neutral
Varity_R		0.13
gMVP		0.72
Mutation Taster		=68/32	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.0046
dbscSNV1_RF	Benign	0.020
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

MaxEntScan Visualizer can be used to analyze the impact of this mutation on the neighboring sequence.

Other links and lift over

dbSNP: rs1557182355; hg19: chrX-153608302;