rs760980785

Variant names:

Variant summary

Our verdict is Likely pathogenic. Variant got 6 ACMG points: 6P and 0B. PM1PM2PP3PP5

The NM_016239.4(MYO15A):c.6437G>A(p.Arg2146Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000164 in 1,461,592 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.000016 ( 0 hom. )

Consequence

MYO15A
NM_016239.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:2

Conservation

PhyloP100: 7.88

Variant links:

Genes affected

MYO15A (HGNC:7594): (myosin XVA) This gene encodes an unconventional myosin. This protein differs from other myosins in that it has a long N-terminal extension preceding the conserved motor domain. Studies in mice suggest that this protein is necessary for actin organization in the hair cells of the cochlea. Mutations in this gene have been associated with profound, congenital, neurosensory, nonsyndromal deafness. This gene is located within the Smith-Magenis syndrome region on chromosome 17. Read-through transcripts containing an upstream gene and this gene have been identified, but they are not thought to encode a fusion protein. Several alternatively spliced transcript variants have been described, but their full length sequences have not been determined. [provided by RefSeq, Jul 2008]

MYO15A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_pathogenic. Variant got 6 ACMG points.

PM1

In a domain MyTH4 1 (size 152) in uniprot entity MYO15_HUMAN there are 8 pathogenic changes around while only 2 benign (80%) in NM_016239.4

PM2

Very rare variant in population databases, with high coverage;

PP3

MetaRNN computational evidence supports a deleterious effect, 0.799

PP5

Variant 17-18146035-G-A is Pathogenic according to our data. Variant chr17-18146035-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 228275.We mark this variant Likely_pathogenic, oryginal submissions are: {Uncertain_significance=2, Likely_pathogenic=2}. Variant chr17-18146035-G-A is described in Lovd as [Pathogenic].

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
MYO15A	NM_016239.4 link	c.6437G>A	p.Arg2146Gln	missense_variant	Exon 30 of 66	ENST00000647165.2	NP_057323.3	Q9UKN7-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
MYO15A	ENST00000647165.2 link	c.6437G>A	p.Arg2146Gln	missense_variant	Exon 30 of 66		NM_016239.4	ENSP00000495481.1		Q9UKN7-1
MYO15A	ENST00000578999.1 link	n.22G>A		non_coding_transcript_exon_variant	Exon 1 of 4	5

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.0000121

AC:

AN:

248620

Hom.:

AF XY:

0.0000148

AC XY:

AN XY:

135148

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000556

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000889

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000164

AC:

AN:

1461592

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727114

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.0000252

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000198

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.0000151

ExAC

AF:

0.00000825

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Pathogenic:2Uncertain:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Pathogenic:1

May 20, 2024

GeneDx

Significance: Likely pathogenic

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 32617096, 29849560, 30579064, 31579092, 34388253, 26242193, 26445815, 27375115, 33208113, 23865914) -

Rare genetic deafness

Pathogenic:1

Mar 08, 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.Arg2146Gln variant in MYO15A has been reported in 1 Asian individual with autosomal recessive nonsyndromic hearing loss, and segregated with disease in 1 affected family member. Both siblings were compound heterozygous for this varian t and a reportedly pathogenic variant (c.4320+1G>A; Woo 2013). This variant has been identified in 1/65676 European chromosomes by the Exome Aggregation Consort ium (ExAC, http://exac.broadinstitute.org; dbSNP rs760980785). Although this var iant has been seen in the general population, its frequency is low enough to be consistent with a recessive carrier frequency. Computational prediction tools an d conservation analyses suggest that the p.Arg2146Gln variant may impact the pro tein, though this information alone is not predictive enough to determine pathog enicity. In summary, although additional studies are required to fully establish its clinical significance, this variant is likely pathogenic. -

not specified

Uncertain:1

Sep 27, 2022

Women's Health and Genetics/Laboratory Corporation of America, LabCorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

Variant summary: MYO15A c.6437G>A (p.Arg2146Gln) results in a conservative amino acid change located in the MyTH4 domain (IPR000857) of the encoded protein sequence. Four of five in-silico tools predict a damaging effect of the variant on protein function. The variant allele was found at a frequency of 1.2e-05 in 248620 control chromosomes (gnomAD). c.6437G>A has been reported in the literature in compound heterozygous state in two siblings, who carried a likely pathogenic variant in trans, and were affected with profound, bilateral nonsyndromic hearing loss (Woo_2013), in addition the variant was also reported in heterozygous state (i.e. without specifying a variant in trans) in an individual with nonsyndromic hearing loss in the setting of a multigene panel testing (Sloan-Heggen_2015). These data indicate that the variant may be associated with disease. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. One clinical diagnostic laboratory has submitted a clinical-significance assessment for this variant to ClinVar after 2014 and classified the variant as likely pathogenic. Based on the evidence outlined above, the variant was classified as VUS-possibly pathogenic. -

Autosomal recessive nonsyndromic hearing loss 3

Uncertain:1

Apr 07, 2022

Revvity Omics, Revvity

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.19

BayesDel_addAF

Uncertain

0.048

BayesDel_noAF

Uncertain

0.0

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.31

T;D;D

Eigen

Pathogenic

0.89

Eigen_PC

Pathogenic

0.84

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.92

D;.;D

M_CAP

Pathogenic

0.50

MetaRNN

Pathogenic

0.80

D;D;D

MetaSVM

Pathogenic

0.99

MutationAssessor

Pathogenic

3.1

.;M;M

PrimateAI

Uncertain

0.51

PROVEAN

Uncertain

-3.9

.;D;.

REVEL

Pathogenic

0.82

Sift

Uncertain

0.0070

.;D;.

Sift4G

Pathogenic

0.0

D;D;.

Polyphen

1.0

.;D;D

Vest4

0.52

MutPred

0.66

Gain of catalytic residue at R2146 (P = 0.0204);Gain of catalytic residue at R2146 (P = 0.0204);Gain of catalytic residue at R2146 (P = 0.0204);

MVP

0.95

ClinPred

0.96

GERP RS

5.5

Varity_R

0.77

gMVP

0.88

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.030

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

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over