1-236394504-G-C

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PM1 PM2 BP4_Strong

The NM_145861.4(EDARADD):c.60G>C(p.Glu20Asp) variant causes a missense, splice region change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,168 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 18/23 in silico tools predict a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E20E) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 33)
• Consequence: EDARADD NM_145861.4 missense, splice_region
• Scores: Splicing: ADA: 0.00006370
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: -0.564

Genes affected

EDARADD (HGNC:14341): (EDAR associated via death domain) This gene was identified by its association with ectodermal dysplasia, a genetic disorder characterized by defective development of hair, teeth, and eccrine sweat glands. The protein encoded by this gene is a death domain-containing protein, and is found to interact with EDAR, a death domain receptor known to be required for the development of hair, teeth and other ectodermal derivatives. This protein and EDAR are coexpressed in epithelial cells during the formation of hair follicles and teeth. Through its interaction with EDAR, this protein acts as an adaptor, and links the receptor to downstream signaling pathways. Two alternatively spliced transcript variants of this gene encoding distinct isoforms have been reported. [provided by RefSeq, Jul 2008]

ACMG classification

Verdict is Uncertain_significance. Variant got 0 ACMG points.

• PM1: In a chain Ectodysplasin-A receptor-associated adapter protein (size 214) in uniprot entity EDAD_HUMAN there are 18 pathogenic changes around while only 1 benign (95%) in NM_145861.4
• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.03867224).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EDARADD	NM_145861.4	c.60G>C	p.Glu20Asp	missense_variant, splice_region_variant	1/6	ENST00000334232.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EDARADD	ENST00000334232.9	c.60G>C	p.Glu20Asp	missense_variant, splice_region_variant	1/6	1	NM_145861.4
EDARADD	ENST00000439430.5	c.-5-14712G>C		intron_variant		3
EDARADD	ENST00000637660.1	c.-5-14712G>C		intron_variant		5

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152168 Hom.: 0 Cov.: 33

Gnomad AFR AF: 0.0000241

Gnomad AMI AF: 0.00

Gnomad AMR AF: 0.00

Gnomad ASJ AF: 0.00

Gnomad EAS AF: 0.00

Gnomad SAS AF: 0.00

Gnomad FIN AF: 0.00

Gnomad MID AF: 0.00

Gnomad NFE AF: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 33

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152168 Hom.: 0 Cov.: 33 AF XY: 0.00 AC XY: 0 AN XY: 74334

Gnomad4 AFR AF: 0.0000241

Gnomad4 AMR AF: 0.00

Gnomad4 ASJ AF: 0.00

Gnomad4 EAS AF: 0.00

Gnomad4 SAS AF: 0.00

Gnomad4 FIN AF: 0.00

Gnomad4 NFE AF: 0.00

Gnomad4 OTH AF: 0.00

Bravo AF: 0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.099
BayesDel_addAF	Benign	-0.24	T
BayesDel_noAF	Benign	-0.59
Cadd	Benign	0.21
Dann	Benign	0.51
DEOGEN2	Benign	0.060	T
Eigen	Benign	-1.9
Eigen_PC	Benign	-1.8
FATHMM_MKL	Benign	0.048	N
LIST_S2	Benign	0.33	T
M_CAP	Benign	0.011	T
MetaRNN	Benign	0.039	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	1.3	L
MutationTaster	Benign	1.0	N
PrimateAI	Benign	0.32	T
PROVEAN	Benign	-0.50	N
REVEL	Benign	0.11
Sift	Benign	0.37	T
Sift4G	Benign	0.27	T
Polyphen		0.0	B
Vest4		0.049
MutPred		0.083		Loss of MoRF binding (P = 0.1143);
MVP		0.47
MPC		0.54
ClinPred		0.17	T
GERP RS		-3.4
Varity_R		0.044
gMVP		0.042

Splicing

Name	Calibrated prediction	Score	Prediction
dbscSNV1_ADA	Benign	0.000064
dbscSNV1_RF	Benign	0.010
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: rs60808129; hg19: chr1-236557804;