chr14-76491603-C-CG

Variant names:

• chr14-76491603-C-CG
• rs1555344820
• NM_001379180.1:c.1011dupG

Variant summary

Our verdict is Pathogenic. The variant received 12 ACMG points: 12P and 0B. PVS1 PM2 PP5_Moderate

The NM_001379180.1(ESRRB):​c.1011dupG​(p.Leu338AlafsTer68) variant causes a frameshift change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Likely pathogenic (★). Synonymous variant affecting the same amino acid position (i.e. L338L) has been classified as Likely benign. Variant results in nonsense mediated mRNA decay.

• Frequency: Genomes: not found (cov: 33)
• Consequence: ESRRB NM_001379180.1 frameshift
• Clinical Significance: Likely pathogenic criteria provided, single submitter P:1
• Conservation: PhyloP100: -3.34
• Publications: 0 publications found

Genes affected

ESRRB (HGNC:3473): (estrogen related receptor beta) This gene encodes a protein with similarity to the estrogen receptor. Its function is unknown; however, a similar protein in mouse plays an essential role in placental development. [provided by RefSeq, Jul 2008]

ESRRB Gene-Disease associations (from GenCC):

• autosomal recessive nonsyndromic hearing loss 35

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

  Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
• hearing loss, autosomal recessive

  Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

ACMG classification

Our verdict: Pathogenic. The variant received 12 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
• PP5: Variant 14-76491603-C-CG is Pathogenic according to our data. Variant chr14-76491603-C-CG is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 505350.Status of the report is criteria_provided_single_submitter, 1 stars.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ESRRB	NM_001379180.1	c.1011dupG	p.Leu338AlafsTer68	frameshift_variant	Exon 6 of 7	ENST00000644823.1	NP_001366109.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ESRRB	ENST00000644823.1	c.1011dupG	p.Leu338AlafsTer68	frameshift_variant	Exon 6 of 7		NM_001379180.1	ENSP00000493776.1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 34

GnomAD4 genome Cov.: 33

ClinVar

Significance: Likely pathogenic

Submissions summary: Pathogenic:1

Revision: criteria provided, single submitter

Submissions by phenotype

Rare genetic deafness Pathogenic:1

Nov 18, 2016

Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The p.Leu317fs variant in ESRRB has not been previously reported in individuals with hearing loss or large population studies. This frameshift variant is predic ted to alter the protein?s amino acid sequence beginning at position 317 and lea d to a premature termination codon 68 amino acids downstream. This alteration is then predicted to lead to a truncated or absent protein. Truncating variants in ESRRB have been associated with autosomal recessive sensorineural hearing loss; however, the exact mechanism of disease has not yet been established. In summar y, although additional studies are required to fully establish its clinical sign ificance, the p.Leu317fs variant is likely pathogenic for autosomal recessive he aring loss. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
PhyloP100		-3.3

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: rs1555344820; hg19: chr14-76957946;