6-133468648-C-A

Variant names:

• chr6-133468648-C-A
• rs755455584
• NM_004100.5:c.887C>A

Variant summary

Our verdict is Pathogenic. The variant received 10 ACMG points: 10P and 0B. PVS1 PM2

The NM_004100.5(EYA4):​c.887C>A​(p.Ser296*) variant causes a stop gained change. The variant allele was found at a frequency of 0.00000137 in 1,460,664 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. S296S) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000014 (0 hom.)
• Consequence: EYA4 NM_004100.5 stop_gained
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 5.63
• Publications: 0 publications found

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]

EYA4 Gene-Disease associations (from GenCC):

• autosomal dominant nonsyndromic hearing loss 10

  Inheritance: AD Classification: DEFINITIVE, STRONG Submitted by: G2P, Labcorp Genetics (formerly Invitae), PanelApp Australia
• nonsyndromic genetic hearing loss

  Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
• autosomal dominant nonsyndromic hearing loss

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• dilated cardiomyopathy 1J

  Inheritance: AD Classification: SUPPORTIVE, LIMITED Submitted by: Orphanet, ClinGen

ACMG classification

Our verdict: Pathogenic. The variant received 10 ACMG points.

• PVS1: Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.
• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_004100.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EYA4	NM_004100.5	MANE Select	c.887C>A	p.Ser296*	stop_gained	Exon 11 of 20	NP_004091.3
	EYA4	NM_001301013.2		c.887C>A	p.Ser296*	stop_gained	Exon 11 of 20	NP_001287942.1
	EYA4	NM_172105.4		c.887C>A	p.Ser296*	stop_gained	Exon 11 of 20	NP_742103.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	EYA4	ENST00000355286.12	TSL:1 MANE Select	c.887C>A	p.Ser296*	stop_gained	Exon 11 of 20	ENSP00000347434.7
	EYA4	ENST00000531901.5	TSL:2	c.887C>A	p.Ser296*	stop_gained	Exon 11 of 20	ENSP00000432770.1
	EYA4	ENST00000431403.3	TSL:5	c.818C>A	p.Ser273*	stop_gained	Exon 10 of 19	ENSP00000404558.3

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 0.00000137 AC: 2 AN: 1460664 Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1 AN XY: 726698

African (AFR) AF: 0.00 AC: 0 AN: 33412

American (AMR) AF: 0.00 AC: 0 AN: 44630

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26090

East Asian (EAS) AF: 0.00 AC: 0 AN: 39682

South Asian (SAS) AF: 0.00 AC: 0 AN: 86246

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53408

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 9.00e-7 AC: 1 AN: 1111106

Other (OTH) AF: 0.0000166 AC: 1 AN: 60328

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
BayesDel_addAF	Pathogenic	0.63	D
BayesDel_noAF	Pathogenic	0.62
CADD	Pathogenic	37
DANN	Uncertain	0.99
Eigen	Uncertain	0.57
Eigen_PC	Uncertain	0.35
FATHMM_MKL	Uncertain	0.96	D
PhyloP100		5.6
Vest4		0.88
GERP RS		4.9
Mutation Taster		=3/197	disease causing (fs/PTC)

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

Other links and lift over

dbSNP: rs755455584; hg19: chr6-133789786;