rs369489756

Variant summary

Our verdict is Likely benign. The variant received -5 ACMG points: 0P and 5B. BP4_StrongBP6

The NM_000260.4(MYO7A):​c.4153-7C>A variant causes a splice region, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000242 in 1,609,812 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000020 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000025 ( 0 hom. )

Consequence

MYO7A
NM_000260.4 splice_region, intron

Scores

2
Splicing: ADA: 0.0005093
2

Clinical Significance

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

Conservation

PhyloP100: -0.914

Publications

0 publications found
Variant links:
Genes affected
MYO7A (HGNC:7606): (myosin VIIA) This gene is a member of the myosin gene family. Myosins are mechanochemical proteins characterized by the presence of a motor domain, an actin-binding domain, a neck domain that interacts with other proteins, and a tail domain that serves as an anchor. This gene encodes an unconventional myosin with a very short tail. Defects in this gene are associated with the mouse shaker-1 phenotype and the human Usher syndrome 1B which are characterized by deafness, reduced vestibular function, and (in human) retinal degeneration. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2008]
MYO7A Gene-Disease associations (from GenCC):
  • nonsyndromic genetic hearing loss
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • autosomal recessive nonsyndromic hearing loss 2
    Inheritance: AR Classification: DEFINITIVE, STRONG, MODERATE, LIMITED Submitted by: Labcorp Genetics (formerly Invitae), PanelApp Australia, Ambry Genetics, G2P
  • Usher syndrome type 1
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, PanelApp Australia
  • Usher syndrome type 1B
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Labcorp Genetics (formerly Invitae), G2P
  • autosomal dominant nonsyndromic hearing loss 11
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Ambry Genetics, PanelApp Australia, Labcorp Genetics (formerly Invitae)
  • autosomal dominant nonsyndromic hearing loss
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • hearing loss, autosomal recessive
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
  • Usher syndrome type 2
    Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -5 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.83).
BP6
Variant 11-77194347-C-A is Benign according to our data. Variant chr11-77194347-C-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 180061.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
MYO7ANM_000260.4 linkc.4153-7C>A splice_region_variant, intron_variant Intron 31 of 48 ENST00000409709.9 NP_000251.3

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
MYO7AENST00000409709.9 linkc.4153-7C>A splice_region_variant, intron_variant Intron 31 of 48 1 NM_000260.4 ENSP00000386331.3
MYO7AENST00000458637.6 linkc.4153-7C>A splice_region_variant, intron_variant Intron 31 of 48 1 ENSP00000392185.2
MYO7AENST00000409619.6 linkc.4120-7C>A splice_region_variant, intron_variant Intron 32 of 49 1 ENSP00000386635.2
MYO7AENST00000458169.2 linkc.1696-7C>A splice_region_variant, intron_variant Intron 11 of 28 1 ENSP00000417017.2
MYO7AENST00000670577.1 linkn.1993-7C>A splice_region_variant, intron_variant Intron 14 of 31 ENSP00000499323.1

Frequencies

GnomAD3 genomes
AF:
0.0000197
AC:
3
AN:
152172
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000289
AC:
7
AN:
241982
AF XY:
0.0000229
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000295
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000456
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000247
AC:
36
AN:
1457640
Hom.:
0
Cov.:
30
AF XY:
0.0000235
AC XY:
17
AN XY:
724600
show subpopulations
African (AFR)
AF:
0.000120
AC:
4
AN:
33408
American (AMR)
AF:
0.0000226
AC:
1
AN:
44290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25978
East Asian (EAS)
AF:
0.0000253
AC:
1
AN:
39566
South Asian (SAS)
AF:
0.0000469
AC:
4
AN:
85212
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53012
Middle Eastern (MID)
AF:
0.000174
AC:
1
AN:
5754
European-Non Finnish (NFE)
AF:
0.0000216
AC:
24
AN:
1110208
Other (OTH)
AF:
0.0000166
AC:
1
AN:
60212
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.467
Heterozygous variant carriers
0
3
7
10
14
17
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000197
AC:
3
AN:
152172
Hom.:
0
Cov.:
33
AF XY:
0.0000135
AC XY:
1
AN XY:
74340
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41458
American (AMR)
AF:
0.00
AC:
0
AN:
15288
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:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10624
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000441
AC:
3
AN:
67984
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.408
Heterozygous variant carriers
0
1
1
2
2
3
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:
0.0000251
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:3Benign:3
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Benign:2
Jan 02, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Aug 18, 2020
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is associated with the following publications: (PMID: 21602428) -

not specified Uncertain:1
Nov 18, 2014
Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Variant classified as Uncertain Significance - Favor Benign. The c.4153-7C>A var iant in MYO7A has not been previously reported in individuals with hearing loss or in large population studies. This variant is located in the 3' splice region. Computational tools do not suggest an impact to splicing, though this informati on is not predictive enough to rule out pathogenicity. In summary, while the cl inical significance of the c.4153-7C>A variant is uncertain, the splicing data s uggest that it is more likely to be benign. -

Usher syndrome type 1;C1838701:Autosomal recessive nonsyndromic hearing loss 2 Uncertain:1
May 15, 2017
Counsyl
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

This submission and the accompanying classification are no longer maintained by the submitter. For more information on current observations and classification, please contact variantquestions@myriad.com. -

Usher syndrome type 1B Uncertain:1
Apr 16, 2020
Natera, Inc.
Significance:Uncertain significance
Review Status:no assertion criteria provided
Collection Method:clinical testing

- -

MYO7A-related disorder Benign:1
Sep 25, 2024
PreventionGenetics, part of Exact Sciences
Significance:Likely benign
Review Status:no assertion criteria provided
Collection Method:clinical testing

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
BayesDel_noAF
Benign
-0.83
CADD
Benign
0.14
DANN
Benign
0.60
PhyloP100
-0.91
Mutation Taster
=100/0
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00051
dbscSNV1_RF
Benign
0.10
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

Other links and lift over

dbSNP: rs369489756; hg19: chr11-76905392; API