12-57043115-C-T

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 2P and 4B. PP3_ModerateBS2

The NM_005379.4(MYO1A):​c.1055G>A​(p.Arg352His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000533 in 1,614,034 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 Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000053 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000053 ( 0 hom. )

Consequence

MYO1A
NM_005379.4 missense

Scores

10
7
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.91

Publications

5 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

PP3
MetaRNN computational evidence supports a deleterious effect, 0.894
BS2
High AC in GnomAd4 at 8 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYO1ANM_005379.4 linkc.1055G>A p.Arg352His missense_variant Exon 12 of 28 ENST00000300119.8 NP_005370.1 Q9UBC5
MYO1ANM_001256041.2 linkc.1055G>A p.Arg352His missense_variant Exon 13 of 29 NP_001242970.1 Q9UBC5B2R643
MYO1AXM_047428876.1 linkc.1055G>A p.Arg352His missense_variant Exon 13 of 29 XP_047284832.1
MYO1AXM_011538373.3 linkc.1055G>A p.Arg352His missense_variant Exon 12 of 25 XP_011536675.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYO1AENST00000300119.8 linkc.1055G>A p.Arg352His missense_variant Exon 12 of 28 1 NM_005379.4 ENSP00000300119.3 Q9UBC5
MYO1AENST00000442789.6 linkc.1055G>A p.Arg352His missense_variant Exon 13 of 29 1 ENSP00000393392.2 Q9UBC5
MYO1AENST00000492945.5 linkc.143G>A p.Arg48His missense_variant Exon 4 of 5 4 ENSP00000452229.1 G3V587
MYO1AENST00000554234.5 linkn.569G>A non_coding_transcript_exon_variant Exon 8 of 24 5 ENSP00000451033.1 G3V342

Frequencies

GnomAD3 genomes
AF:
0.0000526
AC:
8
AN:
152144
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.0000882
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000438
AC:
11
AN:
251326
AF XY:
0.0000663
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000578
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000792
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000534
AC:
78
AN:
1461890
Hom.:
0
Cov.:
32
AF XY:
0.0000715
AC XY:
52
AN XY:
727248
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.0000224
AC:
1
AN:
44724
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.0000252
AC:
1
AN:
39700
South Asian (SAS)
AF:
0.0000348
AC:
3
AN:
86258
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53420
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000647
AC:
72
AN:
1112008
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.479
Heterozygous variant carriers
0
5
10
16
21
26
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000526
AC:
8
AN:
152144
Hom.:
0
Cov.:
32
AF XY:
0.0000538
AC XY:
4
AN XY:
74318
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41440
American (AMR)
AF:
0.000131
AC:
2
AN:
15270
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4820
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10602
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000882
AC:
6
AN:
68028
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.0000900
Hom.:
0
Bravo
AF:
0.0000378
ExAC
AF:
0.0000165
AC:
2
EpiCase
AF:
0.000218
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Oct 05, 2013
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The Arg352His variant in MYO1A has not been reported in individuals with hearing loss or in large population studies. The arginine (Arg) residue at position 352 is highly conserved across species and lies in the myosin head motor domain. In addition, computational analyses ( AlignGVGD, PolyPhen2, and SIFT) suggest that the variant may impact the protein. However, this information is not predictive enough to assume pathogenicity. In summary, additional information is needed to fully assess the clinical significance of the Arg352His variant. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.15
BayesDel_addAF
Pathogenic
0.32
D
BayesDel_noAF
Pathogenic
0.41
CADD
Pathogenic
30
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.66
D;D;.
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.74
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.96
.;D;D
M_CAP
Uncertain
0.13
D
MetaRNN
Pathogenic
0.89
D;D;D
MetaSVM
Pathogenic
0.83
D
MutationAssessor
Uncertain
2.5
M;M;.
PhyloP100
7.9
PrimateAI
Uncertain
0.58
T
PROVEAN
Pathogenic
-4.8
D;D;D
REVEL
Pathogenic
0.88
Sift
Uncertain
0.0010
D;D;D
Sift4G
Uncertain
0.0020
D;D;.
Polyphen
1.0
D;D;.
Vest4
0.91
MutPred
0.69
Loss of MoRF binding (P = 0.0094);Loss of MoRF binding (P = 0.0094);.;
MVP
0.94
MPC
0.48
ClinPred
0.95
D
GERP RS
5.2
Varity_R
0.82
gMVP
0.54
Mutation Taster
=55/45
polymorphism

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

Other links and lift over

dbSNP: rs727504566; hg19: chr12-57436899; COSMIC: COSV100271041; COSMIC: COSV100271041; API