6-133506148-A-T

Position:

• chr6-133506148-A-T

Variant summary

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

The NM_004100.5(EYA4):​c.1234A>T​(p.Met412Leu) 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 (★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: EYA4 NM_004100.5 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 8.69

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]

TARID (HGNC:50506): (TCF21 antisense RNA inducing promoter demethylation)

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.1234A>T	p.Met412Leu	missense_variant	14/20	ENST00000355286.12
TARID	NR_109982.1	n.2486T>A		non_coding_transcript_exon_variant	8/9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EYA4	ENST00000355286.12	c.1234A>T	p.Met412Leu	missense_variant	14/20	1	NM_004100.5	P4
TARID	ENST00000607033.5	n.2462T>A		non_coding_transcript_exon_variant	8/9	1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 29

GnomAD4 genome Cov.: 33

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

May 09, 2019

This variant is not present in population databases (ExAC 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, but these predictions have not been confirmed by published functional studies and their clinical significance is uncertain. This variant has not been reported in the literature in individuals with EYA4-related disease. This sequence change replaces methionine with leucine at codon 412 of the EYA4 protein (p.Met412Leu). The methionine residue is highly conserved and there is a small physicochemical difference between methionine and leucine. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.32
BayesDel_addAF	Pathogenic	0.22	D
BayesDel_noAF	Uncertain	0.080
CADD	Uncertain	24
DANN	Benign	0.96
DEOGEN2	Benign	0.040	.;T;D;.;D;.;T;T
Eigen	Benign	0.041
Eigen_PC	Uncertain	0.24
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.97	D;D;.;D;D;D;D;D
M_CAP	Benign	0.046	D
MetaRNN	Uncertain	0.60	D;D;D;D;D;D;D;D
MetaSVM	Benign	-0.62	T
MutationAssessor	Benign	0.83	.;.;L;L;L;.;.;.
MutationTaster	Benign	1.0	D;D;D;D;D;D;D;D
PrimateAI	Pathogenic	0.83	D
PROVEAN	Benign	-1.6	N;N;N;N;.;.;N;N
REVEL	Uncertain	0.51
Sift	Benign	0.24	T;T;T;T;.;.;T;T
Sift4G	Benign	0.50	T;T;T;T;.;.;T;T
Polyphen		0.0020, 0.0, 0.0010, 0.098	.;B;B;B;B;B;B;.
Vest4		0.77
MutPred		0.54		.;.;.;.;.;.;Loss of helix (P = 0.0167);.;
MVP		0.77
MPC		0.16
ClinPred		0.72	D
GERP RS		5.6
Varity_R		0.42
gMVP		0.77

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: rs1562498166; hg19: chr6-133827286;