Genetic Variant MYO1A:p.Ser910Thr (chr12-57029584-A-T) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_005379.4(MYO1A):c.2728T>A(p.Ser910Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S910P) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

MYO1A
NM_005379.4 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 1.34

Publications

0 publications found

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 Gene-Disease associations (from GenCC):

nonsyndromic genetic hearing loss
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

MYO1A links:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.09998837).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_005379.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	MYO1A	NM_005379.4	MANE Select	c.2728T>A	p.Ser910Thr	missense	Exon 26 of 28	NP_005370.1
	MYO1A	NM_001256041.2		c.2728T>A	p.Ser910Thr	missense	Exon 27 of 29	NP_001242970.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
MYO1A	ENST00000300119.8	TSL:1 MANE Select	c.2728T>A	p.Ser910Thr	missense	Exon 26 of 28	ENSP00000300119.3
MYO1A	ENST00000442789.6	TSL:1	c.2728T>A	p.Ser910Thr	missense	Exon 27 of 29	ENSP00000393392.2
MYO1A	ENST00000477864.1	TSL:2	n.291T>A		non_coding_transcript_exon	Exon 4 of 4

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.00000137

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00000275

AC XY:

AN XY:

727246

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86254

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53418

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5766

European-Non Finnish (NFE)

AF:

0.00000180

AC:

AN:

1112010

Other (OTH)

AF:

0.00

AC:

AN:

60396

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.087

BayesDel_addAF

Benign

-0.26

BayesDel_noAF

Benign

-0.62

CADD

Benign

(source)

DANN

Benign

0.89

DEOGEN2

Benign

0.039

Eigen

Benign

-0.57

Eigen_PC

Benign

-0.47

FATHMM_MKL

Benign

0.12

LIST_S2

Benign

0.58

M_CAP

Benign

0.0084

MetaRNN

Benign

0.10

MetaSVM

Benign

-0.98

MutationAssessor

Benign

1.2

PhyloP100

1.3

PrimateAI

Benign

0.39

PROVEAN

Benign

0.94

REVEL

Benign

0.12

Sift

Benign

0.73

Sift4G

Benign

0.90

Polyphen

0.13

Vest4

0.18

MutPred

0.55

Loss of phosphorylation at S910 (P = 0.072)

MVP

0.46

MPC

0.087

ClinPred

0.59

GERP RS

3.3

Varity_R

0.059

gMVP

0.22

Mutation Taster

=93/7

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.010

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over