chr6-133274804-T-G

Position:

• chr6-133274804-T-G

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_004100.5(EYA4):​c.24T>G​(p.Asn8Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,428 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. 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. N8S) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: EYA4 NM_004100.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 2.69

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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.24972081).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EYA4	NM_004100.5	c.24T>G	p.Asn8Lys	missense_variant	2/20	ENST00000355286.12

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EYA4	ENST00000355286.12	c.24T>G	p.Asn8Lys	missense_variant	2/20	1	NM_004100.5	P4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461428 Hom.: 0 Cov.: 29 AF XY: 0.00 AC XY: 0 AN XY: 727028

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.00

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 9.00e-7

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

Bravo AF: 0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

Dilated cardiomyopathy 1J Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Labcorp Genetics (formerly Invitae), Labcorp

Dec 20, 2022

This variant is not present in population databases (gnomAD no frequency). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. This variant has not been reported in the literature in individuals affected with EYA4-related conditions. This sequence change replaces asparagine, which is neutral and polar, with lysine, which is basic and polar, at codon 8 of the EYA4 protein (p.Asn8Lys). -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.13
BayesDel_addAF	Uncertain	0.022	T
BayesDel_noAF	Benign	-0.21
CADD	Benign	23
DANN	Uncertain	1.0
DEOGEN2	Benign	0.0082	.;T;T;.;T;.;T;T
Eigen	Benign	0.089
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Uncertain	0.89	D
LIST_S2	Benign	0.85	T;D;.;D;D;D;D;T
M_CAP	Benign	0.048	D
MetaRNN	Benign	0.25	T;T;T;T;T;T;T;T
MetaSVM	Uncertain	0.012	D
MutationAssessor	Benign	0.0	N;.;N;N;N;N;.;.
MutationTaster	Benign	0.82	D;D;D;D;D;D;D;D
PrimateAI	Uncertain	0.75	T
PROVEAN	Benign	-0.14	N;N;N;N;N;N;N;N
REVEL	Benign	0.27
Sift	Benign	0.048	D;D;T;T;T;T;T;T
Sift4G	Benign	0.49	T;T;T;T;T;T;T;T
Polyphen		0.91, 0.0	.;P;B;B;B;P;B;.
Vest4		0.44
MutPred		0.20		Gain of ubiquitination at N8 (P = 0.0042);Gain of ubiquitination at N8 (P = 0.0042);Gain of ubiquitination at N8 (P = 0.0042);Gain of ubiquitination at N8 (P = 0.0042);Gain of ubiquitination at N8 (P = 0.0042);Gain of ubiquitination at N8 (P = 0.0042);Gain of ubiquitination at N8 (P = 0.0042);Gain of ubiquitination at N8 (P = 0.0042);
MVP		0.83
MPC		0.16
ClinPred		0.47	T
GERP RS		5.7
Varity_R		0.14
gMVP		0.084

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: rs1777028797; hg19: chr6-133595942;