X-69616495-G-A

Variant names:

• chrX-69616495-G-A
• rs132630311
• NM_001399.5:c.187G>A

Variant summary

Our verdict is Likely pathogenic. The variant received 9 ACMG points: 9P and 0B. PM1 PM2 PP2 PP3_Moderate PP5_Moderate

The NM_001399.5(EDA):​c.187G>A​(p.Glu63Lys) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★).

• Frequency: Genomes: not found (cov: 24)
• Consequence: EDA NM_001399.5 missense
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:2
• Conservation: PhyloP100: 5.88
• Publications: 4 publications found

Genes affected

EDA (HGNC:3157): (ectodysplasin A) The protein encoded by this gene is a type II membrane protein that can be cleaved by furin to produce a secreted form. The encoded protein, which belongs to the tumor necrosis factor family, acts as a homotrimer and may be involved in cell-cell signaling during the development of ectodermal organs. Defects in this gene are a cause of ectodermal dysplasia, anhidrotic, which is also known as X-linked hypohidrotic ectodermal dysplasia. Several transcript variants encoding many different isoforms have been found for this gene. [provided by RefSeq, Jul 2008]

EDA Gene-Disease associations (from GenCC):

• tooth agenesis, selective, X-linked, 1

  Inheritance: XL Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
• X-linked hypohidrotic ectodermal dysplasia

  Inheritance: XL Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Orphanet, Labcorp Genetics (formerly Invitae)
• tooth agenesis

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Likely_pathogenic. The variant received 9 ACMG points.

• PM1: In a hotspot region, there are 9 aminoacids with missense pathogenic changes in the window of +-8 aminoacids around while only 2 benign, 4 uncertain in NM_001399.5
• PM2: Very rare variant in population databases, with high coverage
• PP2: Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 110 curated pathogenic missense variants (we use a threshold of 10). The gene has 22 curated benign missense variants. Gene score misZ: 1.7843 (below the threshold of 3.09). Trascript score misZ: NaN (below the threshold of 3.09). GenCC associations: The gene is linked to tooth agenesis, selective, X-linked, 1, X-linked hypohidrotic ectodermal dysplasia, tooth agenesis.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.876
• PP5: Variant X-69616495-G-A is Pathogenic according to our data. Variant chrX-69616495-G-A is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 11034.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001399.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EDA	NM_001399.5	MANE Select	c.187G>A	p.Glu63Lys	missense	Exon 1 of 8	NP_001390.1
	EDA	NM_001005609.2		c.187G>A	p.Glu63Lys	missense	Exon 1 of 8	NP_001005609.1
	EDA	NM_001440761.1		c.187G>A	p.Glu63Lys	missense	Exon 1 of 8	NP_001427690.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EDA	ENST00000374552.9	TSL:1 MANE Select	c.187G>A	p.Glu63Lys	missense	Exon 1 of 8	ENSP00000363680.4
	EDA	ENST00000374553.6	TSL:1	c.187G>A	p.Glu63Lys	missense	Exon 1 of 8	ENSP00000363681.2
	EDA	ENST00000524573.5	TSL:1	c.187G>A	p.Glu63Lys	missense	Exon 1 of 8	ENSP00000432585.1

Frequencies

GnomAD3 genomes Cov.: 24

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 24

Alfa AF: 0.00 Hom.: 0

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:2

Revision: criteria provided, single submitter

Submissions by phenotype

Hypohidrotic X-linked ectodermal dysplasia Pathogenic:1

Feb 01, 1998

OMIM

Significance: Pathogenic

Review Status: no assertion criteria provided

Collection Method: literature only

not provided Pathogenic:1

Mar 03, 2025

GeneDx

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Missense variants in this gene are a common cause of disease and they are underrepresented in the general population; Also known as 429 G>A; This variant is associated with the following publications: (PMID: 11279189, 11378824, 12949972, 9507389)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.98
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.67
CADD	Uncertain	25
DANN	Uncertain	1.0
DEOGEN2	Benign	0.38	T
FATHMM_MKL	Uncertain	0.79	D
LIST_S2	Uncertain	0.96	D
M_CAP	Pathogenic	0.97	D
MetaRNN	Pathogenic	0.88	D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Benign	0.69	N
PhyloP100		5.9
PrimateAI	Pathogenic	0.89	D
PROVEAN	Uncertain	-3.8	D
REVEL	Pathogenic	0.83
Sift	Pathogenic	0.0	D
Sift4G	Pathogenic	0.0	D
Polyphen		1.0	D
Vest4		0.83
MutPred		0.79		Gain of ubiquitination at E63 (P = 0.0211)
MVP		1.0
MPC		0.88
ClinPred		0.98	D
GERP RS		4.8
PromoterAI		-0.036	Neutral
Varity_R		0.70
gMVP		0.83
Mutation Taster		=8/92	disease causing (ClinVar)

Splicing

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

Other links and lift over

dbSNP: rs132630311; hg19: chrX-68836339;