17-18119958-C-T

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_StrongBP6BP7

The NM_016239.4(MYO15A):c.1158C>T(p.Gly386=) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000576 in 1,613,678 control chromosomes in the GnomAD database, including 6 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0030 ( 0 hom., cov: 33)

Exomes 𝑓: 0.00032 ( 6 hom. )

Consequence

MYO15A
NM_016239.4 synonymous

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: -3.04

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_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.86).

BP6

Variant 17-18119958-C-T is Benign according to our data. Variant chr17-18119958-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 226776.We mark this variant Likely_benign, oryginal submissions are: {Benign=3, Likely_benign=1, Uncertain_significance=1}.

BP7

Synonymous conserved (PhyloP=-3.04 with no splicing effect.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
MYO15A	NM_016239.4 linkuse as main transcript	c.1158C>T	p.Gly386=	synonymous_variant	2/66	ENST00000647165.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
MYO15A	ENST00000647165.2 linkuse as main transcript	c.1158C>T	p.Gly386=	synonymous_variant	2/66		NM_016239.4	P1	Q9UKN7-1
MYO15A	ENST00000583079.1 linkuse as main transcript	n.791C>T		non_coding_transcript_exon_variant	1/1

Frequencies

GnomAD3 genomes

AF:

0.00300

AC:

457

AN:

152172

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0104

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00144

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.00

Gnomad OTH

AF:

0.00287

GnomAD3 exomes

AF:

0.000726

AC:

181

AN:

249266

Hom.:

AF XY:

0.000554

AC XY:

AN XY:

135352

show subpopulations

Gnomad AFR exome

AF:

0.0102

Gnomad AMR exome

AF:

0.000464

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000654

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000265

Gnomad OTH exome

AF:

0.000330

GnomAD4 exome

AF:

0.000322

AC:

471

AN:

1461388

Hom.:

Cov.:

AF XY:

0.000289

AC XY:

210

AN XY:

726966

show subpopulations

Gnomad4 AFR exome

AF:

0.0110

Gnomad4 AMR exome

AF:

0.000604

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000812

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000989

Gnomad4 OTH exome

AF:

0.000894

GnomAD4 genome

AF:

0.00301

AC:

458

AN:

152290

Hom.:

Cov.:

AF XY:

0.00293

AC XY:

218

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.0103

Gnomad4 AMR

AF:

0.00144

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00284

Alfa

AF:

0.00132

Hom.:

Bravo

AF:

0.00313

Asia WGS

AF:

0.000289

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:1Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Benign:2

Benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Apr 30, 2012	Gly386Gly in Exon 02 of MYO15A: This variant is not expected to have clinical si gnificance because it does not alter an amino acid residue, is not located withi n the splice consensus sequence, and has been identified in 0.9% (28/3220) of Af rican American chromosomes from a broad population by the NHLBI Exome Sequencing Project (http://evs.gs.washington.edu/EVS). -
Benign, criteria provided, single submitter	clinical testing	PreventionGenetics, part of Exact Sciences	-	- -

not provided

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	GeneDx	Dec 02, 2020	- -
Benign, criteria provided, single submitter	clinical testing	Invitae	Jan 31, 2024	- -

Autosomal recessive nonsyndromic hearing loss 3

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Illumina Laboratory Services, Illumina

Jan 13, 2018

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.86

Cadd

Benign

1.2

Dann

Benign

0.84

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

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