X-70030482-A-T

Position:

• chrX-70030482-A-T

Variant summary

Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM2 PM5 PP3_Strong PP5

The NM_001399.5(EDA):​c.755A>T​(p.His252Leu) variant causes a missense change involving the alteration of a conserved nucleotide. 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 Pathogenic (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. H252Y) has been classified as Likely pathogenic.

• Frequency: Genomes: not found (cov: 23)
• Consequence: EDA NM_001399.5 missense
• Clinical Significance: Pathogenic no assertion criteria provided P:1
• Conservation: PhyloP100: 7.85

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]

ACMG classification

Verdict is Likely_pathogenic. Variant got 9 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PM5: Other missense variant is known to change same aminoacid residue: Variant chrnull-null-null-null is described in UniProt as null.
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.953
• PP5: Variant X-70030482-A-T is Pathogenic according to our data. Variant chrX-70030482-A-T is described in ClinVar as [Pathogenic]. Clinvar id is 253056.Status of the report is no_assertion_criteria_provided, 0 stars. Variant chrX-70030482-A-T is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
EDA	NM_001399.5	c.755A>T	p.His252Leu	missense_variant	6/8	ENST00000374552.9	NP_001390.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
EDA	ENST00000374552.9	c.755A>T	p.His252Leu	missense_variant	6/8	1	NM_001399.5	ENSP00000363680.4

Frequencies

GnomAD3 genomes Cov.: 23

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 23

ClinVar

Significance: Pathogenic

Submissions summary: Pathogenic:1

Revision: no assertion criteria provided

Submissions by phenotype

Hypohidrotic X-linked ectodermal dysplasia Pathogenic:1

Pathogenic, no assertion criteria provided

literature only

OMIM

Aug 01, 1998

- -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.99
BayesDel_addAF	Pathogenic	0.68	D
BayesDel_noAF	Pathogenic	0.73
CADD	Pathogenic	27
DANN	Benign	0.97
DEOGEN2	Uncertain	0.57	.;D;.;.;.
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D;D;D;D;D
M_CAP	Pathogenic	0.92	D
MetaRNN	Pathogenic	0.95	D;D;D;D;D
MetaSVM	Pathogenic	1.1	D
MutationAssessor	Benign	1.8	L;L;L;.;.
PrimateAI	Uncertain	0.77	T
PROVEAN	Uncertain	-3.9	D;D;D;N;.
REVEL	Pathogenic	0.93
Sift	Uncertain	0.0010	D;.;.;D;.
Sift4G	Uncertain	0.053	T;T;T;T;T
Polyphen		1.0	D;D;D;.;.
Vest4		0.91
MutPred		0.80		Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);.;.;
MVP		1.0
MPC		2.1
ClinPred		0.97	D
GERP RS		5.0
Varity_R		0.96
gMVP		0.96

Splicing

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

Publications

LitVar

Other links and lift over

dbSNP: rs879255552; hg19: chrX-69250332;