rs35447806

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_017433.5(MYO3A):​c.3133G>A​(p.Val1045Met) variant causes a missense change. The variant allele was found at a frequency of 0.00104 in 1,612,890 control chromosomes in the GnomAD database, including 32 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. V1045L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.00056 ( 3 hom., cov: 33)
Exomes 𝑓: 0.0011 ( 29 hom. )

Consequence

MYO3A
NM_017433.5 missense

Scores

4
9
4

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:3

Conservation

PhyloP100: 6.78

Publications

3 publications found
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 Gene-Disease associations (from GenCC):
  • autosomal recessive nonsyndromic hearing loss 30
    Inheritance: AR, SD Classification: DEFINITIVE, STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics
  • nonsyndromic genetic hearing loss
    Inheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
  • hearing loss, autosomal dominant 90
    Inheritance: AD Classification: MODERATE Submitted by: Ambry Genetics
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.010553241).
BP6
Variant 10-26168733-G-A is Benign according to our data. Variant chr10-26168733-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 226795.
BS1
Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000559 (85/152188) while in subpopulation SAS AF = 0.0158 (76/4810). AF 95% confidence interval is 0.0129. There are 3 homozygotes in GnomAd4. There are 61 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.
BS2
High Homozygotes in GnomAd4 at 3 AR,SD,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_017433.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYO3A
NM_017433.5
MANE Select
c.3133G>Ap.Val1045Met
missense
Exon 28 of 35NP_059129.3

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
MYO3A
ENST00000642920.2
MANE Select
c.3133G>Ap.Val1045Met
missense
Exon 28 of 35ENSP00000495965.1Q8NEV4-1
MYO3A
ENST00000543632.5
TSL:1
c.1777-43110G>A
intron
N/AENSP00000445909.1F5H0U9
MYO3A
ENST00000916509.1
c.3133G>Ap.Val1045Met
missense
Exon 28 of 33ENSP00000586568.1

Frequencies

GnomAD3 genomes
AF:
0.000559
AC:
85
AN:
152070
Hom.:
3
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000483
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.0000655
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.000577
Gnomad SAS
AF:
0.0158
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.00220
AC:
553
AN:
250872
AF XY:
0.00288
show subpopulations
Gnomad AFR exome
AF:
0.0000615
Gnomad AMR exome
AF:
0.000116
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000272
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000353
Gnomad OTH exome
AF:
0.000327
GnomAD4 exome
AF:
0.00109
AC:
1595
AN:
1460702
Hom.:
29
Cov.:
31
AF XY:
0.00152
AC XY:
1106
AN XY:
726706
show subpopulations
African (AFR)
AF:
0.0000299
AC:
1
AN:
33442
American (AMR)
AF:
0.000157
AC:
7
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26120
East Asian (EAS)
AF:
0.000101
AC:
4
AN:
39610
South Asian (SAS)
AF:
0.0169
AC:
1459
AN:
86220
European-Finnish (FIN)
AF:
0.0000377
AC:
2
AN:
53102
Middle Eastern (MID)
AF:
0.000179
AC:
1
AN:
5582
European-Non Finnish (NFE)
AF:
0.0000459
AC:
51
AN:
1111554
Other (OTH)
AF:
0.00116
AC:
70
AN:
60350
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.462
Heterozygous variant carriers
0
85
170
255
340
425
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Exome Hom
Variant carriers
0
24
48
72
96
120
<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:
0.000559
AC:
85
AN:
152188
Hom.:
3
Cov.:
33
AF XY:
0.000820
AC XY:
61
AN XY:
74406
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41532
American (AMR)
AF:
0.0000654
AC:
1
AN:
15286
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.000579
AC:
3
AN:
5184
South Asian (SAS)
AF:
0.0158
AC:
76
AN:
4810
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10582
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
294
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
68010
Other (OTH)
AF:
0.00
AC:
0
AN:
2108
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.508
Heterozygous variant carriers
0
5
11
16
22
27
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Genome Hom
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
Alfa
AF:
0.0000283
Hom.:
0
Bravo
AF:
0.000185
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.000259
AC:
1
ExAC
AF:
0.00241
AC:
292
Asia WGS
AF:
0.00982
AC:
34
AN:
3476
EpiCase
AF:
0.0000545
EpiControl
AF:
0.0000593

ClinVar

ClinVar submissions
Significance:Conflicting classifications of pathogenicity
Revision:criteria provided, conflicting classifications
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Autosomal recessive nonsyndromic hearing loss 30 (1)
-
-
1
MYO3A-related disorder (1)
-
-
1
not provided (1)
-
-
1
not specified (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.33
BayesDel_addAF
Benign
-0.17
T
BayesDel_noAF
Uncertain
0.0
CADD
Pathogenic
28
DANN
Pathogenic
1.0
DEOGEN2
Benign
0.27
T
Eigen
Pathogenic
0.82
Eigen_PC
Pathogenic
0.80
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.94
D
MetaRNN
Benign
0.011
T
MetaSVM
Uncertain
0.012
D
MutationAssessor
Uncertain
2.0
M
PhyloP100
6.8
PrimateAI
Uncertain
0.76
T
PROVEAN
Uncertain
-2.6
D
REVEL
Uncertain
0.40
Sift
Uncertain
0.0010
D
Sift4G
Uncertain
0.0040
D
Polyphen
1.0
D
Vest4
0.62
MVP
0.76
MPC
0.21
ClinPred
0.075
T
GERP RS
5.5
Varity_R
0.54
gMVP
0.48
Mutation Taster
=89/11
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.040
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: rs35447806; hg19: chr10-26457662; API