10-26174196-C-G

Position:

chr10-26174196-C-G

Variant summary

Our verdict is Benign. Variant got -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_017433.5(MYO3A):c.3932C>G(p.Thr1311Ser) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000297 in 1,614,190 control chromosomes in the GnomAD database, including 3 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.0012 ( 2 hom., cov: 33)

Exomes 𝑓: 0.00020 ( 1 hom. )

Consequence

MYO3A
NM_017433.5 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:4

Conservation

PhyloP100: 2.21

Variant links:

Genes affected

MYO3A (HGNC:7601): (myosin IIIA) The protein encoded by this gene belongs to the myosin superfamily. Myosins are actin-dependent motor proteins and are categorized into conventional myosins (class II) and unconventional myosins (classes I and III through XV) based on their variable C-terminal cargo-binding domains. Class III myosins, such as this one, have a kinase domain N-terminal to the conserved N-terminal motor domains and are expressed in photoreceptors. The protein encoded by this gene plays an important role in hearing in humans. Three different recessive, loss of function mutations in the encoded protein have been shown to cause nonsyndromic progressive hearing loss. Expression of this gene is highly restricted, with the strongest expression in retina and cochlea. [provided by RefSeq, Jul 2008]

MYO3A links:

MYO3A (HGNC:):

MYO3A links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.00700292).

BP6

Variant 10-26174196-C-G is Benign according to our data. Variant chr10-26174196-C-G is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 290824.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=3, Uncertain_significance=2}.

BS1

Variant frequency is greater than expected in population afr. gnomad4 allele frequency = 0.00125 (190/152302) while in subpopulation AFR AF= 0.00424 (176/41556). AF 95% confidence interval is 0.00372. There are 2 homozygotes in gnomad4. There are 89 alleles in male gnomad4 subpopulation. Median coverage is 33. This position pass quality control queck.

BS2

High Homozygotes in GnomAd4 at 2 SD gene

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
MYO3A	NM_017433.5 linkuse as main transcript	c.3932C>G	p.Thr1311Ser	missense_variant	30/35	ENST00000642920.2	NP_059129.3	Q8NEV4-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	UniProt
MYO3A	ENST00000642920.2 linkuse as main transcript	c.3932C>G	p.Thr1311Ser	missense_variant	30/35		NM_017433.5	ENSP00000495965.1	Q8NEV4-1
MYO3A	ENST00000543632.5 linkuse as main transcript	c.1777-37647C>G		intron_variant		1		ENSP00000445909.1	F5H0U9
MYO3A	ENST00000647478.1 linkuse as main transcript	n.*1393+3657C>G		intron_variant				ENSP00000493932.1	A0A2R8Y4D5

Frequencies

GnomAD3 genomes

AF:

0.00124

AC:

189

AN:

152184

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00422

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000655

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:

0.0000294

Gnomad OTH

AF:

0.000955

GnomAD3 exomes

AF:

0.000326

AC:

AN:

251364

Hom.:

AF XY:

0.000280

AC XY:

AN XY:

135850

show subpopulations

Gnomad AFR exome

AF:

0.00388

Gnomad AMR exome

AF:

0.000202

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000616

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000198

AC:

290

AN:

1461888

Hom.:

Cov.:

AF XY:

0.000176

AC XY:

128

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00478

Gnomad4 AMR exome

AF:

0.000246

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000621

Gnomad4 OTH exome

AF:

0.000613

GnomAD4 genome

AF:

0.00125

AC:

190

AN:

152302

Hom.:

Cov.:

AF XY:

0.00120

AC XY:

AN XY:

74468

show subpopulations

Gnomad4 AFR

AF:

0.00424

Gnomad4 AMR

AF:

0.000654

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000945

Alfa

AF:

0.000227

Hom.:

Bravo

AF:

0.00152

ESP6500AA

AF:

0.00386

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000412

AC:

Asia WGS

AF:

0.000577

AC:

AN:

3478

EpiCase

AF:

0.000109

EpiControl

AF:

0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:4

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:1Benign:1

Likely benign, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Sep 21, 2023	- -
Uncertain significance, criteria provided, single submitter	clinical testing	GeneDx	Oct 05, 2021	In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

not specified

Benign:2

Likely benign, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	Jun 21, 2016	p.Thr1311Ser in Exon 30 of MYO3A: This variant is not expected to have clinical significance because it has been identified in 0.4% (42/10370) of African chromo somes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs146693681). -
Likely benign, criteria provided, single submitter	clinical testing	Eurofins Ntd Llc (ga)	Sep 12, 2016	- -

Autosomal recessive nonsyndromic hearing loss 30

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. -

MYO3A-related disorder

Benign:1

Likely benign, no assertion criteria provided

clinical testing

PreventionGenetics, part of Exact Sciences

May 24, 2024

This variant is classified as likely benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.12

BayesDel_addAF

Benign

-0.43

BayesDel_noAF

Benign

-0.40

CADD

Benign

DANN

Benign

0.83

DEOGEN2

Benign

0.054

T;T

Eigen

Benign

-0.30

Eigen_PC

Benign

-0.093

FATHMM_MKL

Uncertain

0.93

LIST_S2

Benign

0.61

.;T

M_CAP

Benign

0.021

MetaRNN

Benign

0.0070

T;T

MetaSVM

Benign

-0.92

MutationAssessor

Benign

1.1

L;L

PrimateAI

Benign

0.29

PROVEAN

Benign

-0.15

.;N

REVEL

Benign

0.17

Sift

Benign

0.39

.;T

Sift4G

Benign

0.41

.;T

Polyphen

0.013

B;B

Vest4

0.13

MutPred

0.17

Loss of glycosylation at T1311 (P = 0.055);Loss of glycosylation at T1311 (P = 0.055);

MVP

0.77

MPC

0.067

ClinPred

0.0084

GERP RS

4.1

Varity_R

0.052

gMVP

0.039

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