rs571906190

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4BP6BS2

The NM_005379.4(MYO1A):c.1667C>T(p.Ser556Phe) variant causes a missense change. The variant allele was found at a frequency of 0.0000365 in 1,614,238 control chromosomes in the GnomAD database, with no homozygous occurrence. 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 0.00024 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000015 ( 0 hom. )

Consequence

MYO1A
NM_005379.4 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:1

Conservation

PhyloP100: 5.24

Variant links:

Genes affected

MYO1A (HGNC:7595): (myosin IA) This gene encodes a member of the myosin superfamily. The protein represents an unconventional myosin; it should not be confused with the conventional skeletal muscle myosin-1 (MYH1). Unconventional myosins contain the basic domains characteristic of conventional myosins and are further distinguished from class members by their tail domains. They function as actin-based molecular motors. Mutations in this gene have been associated with autosomal dominant deafness. Alternatively spliced variants have been found for this gene. [provided by RefSeq, Dec 2011]

MYO1A 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 (MetaRNN=0.36875337).

BP6

Variant 12-57038505-G-A is Benign according to our data. Variant chr12-57038505-G-A is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 164593.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=1, Uncertain_significance=2}.

BS2

High AC in GnomAd at 37 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE
MYO1A	NM_005379.4 linkuse as main transcript	c.1667C>T	p.Ser556Phe	missense_variant	17/28	ENST00000300119.8
MYO1A	NM_001256041.2 linkuse as main transcript	c.1667C>T	p.Ser556Phe	missense_variant	18/29
MYO1A	XM_047428876.1 linkuse as main transcript	c.1667C>T	p.Ser556Phe	missense_variant	18/29
MYO1A	XM_011538373.3 linkuse as main transcript	c.1667C>T	p.Ser556Phe	missense_variant	17/25

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris
MYO1A	ENST00000300119.8 linkuse as main transcript	c.1667C>T	p.Ser556Phe	missense_variant	17/28	1	NM_005379.4	P1
MYO1A	ENST00000442789.6 linkuse as main transcript	c.1667C>T	p.Ser556Phe	missense_variant	18/29	1		P1
MYO1A	ENST00000476795.1 linkuse as main transcript	n.564C>T		non_coding_transcript_exon_variant	3/3	5
MYO1A	ENST00000554234.5 linkuse as main transcript	c.1181C>T	p.Ser394Phe	missense_variant, NMD_transcript_variant	13/24	5

Frequencies

GnomAD3 genomes

AF:

0.000243

AC:

AN:

152228

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00235

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:

0.00

GnomAD3 exomes

AF:

0.0000278

AC:

AN:

251362

Hom.:

AF XY:

0.0000442

AC XY:

AN XY:

135844

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.000116

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.000489

GnomAD4 exome

AF:

0.0000150

AC:

AN:

1461892

Hom.:

Cov.:

AF XY:

0.0000138

AC XY:

AN XY:

727246

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.000358

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000180

Gnomad4 OTH exome

AF:

0.0000662

GnomAD4 genome

AF:

0.000243

AC:

AN:

152346

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74500

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.00235

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:

0.00

Bravo

AF:

0.000408

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:1

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not specified

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Oct 05, 2023	The c.1667C>T (p.S556F) alteration is located in exon 17 (coding exon 16) of the MYO1A gene. This alteration results from a C to T substitution at nucleotide position 1667, causing the serine (S) at amino acid position 556 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Uncertain significance, criteria provided, single submitter	clinical testing	Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine	May 11, 2014	The Ser556Phe variant in MYO1A has not been previously reported in individuals w ith hearing loss and was absent from large population studies. Computational pr ediction tools and conservation analyses do not provide strong support for or ag ainst an impact to the protein. In summary, the clinical significance of the Ser 556Phe variant is uncertain. -

not provided

Benign:1

Likely benign, criteria provided, single submitter

clinical testing

GeneDx

Sep 19, 2018

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.17

BayesDel_addAF

Benign

-0.044

BayesDel_noAF

Uncertain

-0.080

Cadd

Pathogenic

Dann

Uncertain

1.0

DEOGEN2

Uncertain

0.71

D;D

Eigen

Pathogenic

0.70

Eigen_PC

Uncertain

0.63

FATHMM_MKL

Uncertain

0.93

M_CAP

Uncertain

0.15

MetaRNN

Benign

0.37

T;T

MetaSVM

Pathogenic

0.81

MutationAssessor

Pathogenic

3.2

M;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Uncertain

0.52

PROVEAN

Uncertain

-3.6

D;D

REVEL

Uncertain

0.54

Sift

Uncertain

0.0070

D;D

Sift4G

Uncertain

0.012

D;D

Polyphen

1.0

D;D

Vest4

0.47

MutPred

0.43

Loss of disorder (P = 0.026);Loss of disorder (P = 0.026);

MVP

0.93

MPC

0.46

ClinPred

0.92

GERP RS

4.9

Varity_R

0.77

gMVP

0.28

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