rs878854624

Positions:

• chr6-133462681-C-A

Variant summary

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

The NM_004100.5(EYA4):​c.641C>A​(p.Pro214Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. P214P) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: EYA4 NM_004100.5 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 7.57

Genes affected

EYA4 (HGNC:3522): (EYA transcriptional coactivator and phosphatase 4) This gene encodes a member of the eyes absent (EYA) family of proteins. The encoded protein may act as a transcriptional activator through its protein phosphatase activity, and it may be important for eye development, and for continued function of the mature organ of Corti. Mutations in this gene are associated with postlingual, progressive, autosomal dominant hearing loss at the deafness, autosomal dominant non-syndromic sensorineural 10 locus. The encoded protein is also a putative oncogene that mediates DNA repair, apoptosis, and innate immunity following DNA damage, cellular damage, and viral attack. Defects in this gene are also associated with dilated cardiomyopathy 1J. Alternative splicing results in multiple transcript variants encoding distinct isoforms. [provided by RefSeq, Jul 2014]

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
EYA4	NM_004100.5	c.641C>A	p.Pro214Gln	missense_variant	9/20	ENST00000355286.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EYA4	ENST00000355286.12	c.641C>A	p.Pro214Gln	missense_variant	9/20	1	NM_004100.5	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 31

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:2

Revision: criteria provided, multiple submitters, no conflicts

Submissions by phenotype

Dilated cardiomyopathy 1J Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Invitae

Dec 28, 2015

This sequence change replaces proline with glutamine at codon 214 of the EYA4 protein (p.Pro214Gln). The proline residue is highly conserved and there is a moderate physicochemical difference between proline and glutamine. In summary, this is a novel missense change with uncertain impact on protein function. It has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C0"). This variant is not present in population databases (ExAC no frequency) and has not been reported in the literature in individuals with a EYA4-related disease. -

Cardiovascular phenotype Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Nov 20, 2022

The p.P214Q variant (also known as c.641C>A), located in coding exon 8 of the EYA4 gene, results from a C to A substitution at nucleotide position 641. The proline at codon 214 is replaced by glutamine, an amino acid with similar properties. This amino acid position is conserved. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.12
BayesDel_addAF	Pathogenic	0.19	D
BayesDel_noAF	Uncertain	0.040
CADD	Uncertain	25
DANN	Uncertain	0.99
Eigen	Uncertain	0.58
Eigen_PC	Uncertain	0.62
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Pathogenic	0.97	D;D;.;D;D;D;D;D
M_CAP	Uncertain	0.089	D
MetaRNN	Uncertain	0.72	D;D;D;D;D;D;D;D
MetaSVM	Uncertain	0.72	D
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.70	T
PROVEAN	Benign	-2.0	N;N;N;N;.;D;N;N
REVEL	Uncertain	0.60
Sift	Uncertain	0.0010	D;D;D;D;.;D;D;D
Sift4G	Uncertain	0.029	D;D;T;T;.;.;T;D
Polyphen		0.68, 0.98, 0.37, 0.84	.;P;D;P;D;B;P;.
Vest4		0.62
MutPred		0.32		.;.;Loss of glycosylation at P214 (P = 0.0419);Loss of glycosylation at P214 (P = 0.0419);Loss of glycosylation at P214 (P = 0.0419);.;Loss of glycosylation at P214 (P = 0.0419);.;
MVP		0.93
MPC		0.38
ClinPred		0.98	D
GERP RS		5.6
Varity_R		0.20
gMVP		0.42

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

LitVar

Other links and lift over

dbSNP: rs878854624; hg19: chr6-133783819;