rs762666

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_000260.4(MYO7A):​c.593-5C>T variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0109 in 1,613,874 control chromosomes in the GnomAD database, including 1,640 homozygotes. 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 Benign (★★).

Frequency

Genomes: 𝑓 0.058 ( 854 hom., cov: 33)
Exomes 𝑓: 0.0060 ( 786 hom. )

Consequence

MYO7A
NM_000260.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.00001200
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:9

Conservation

PhyloP100: -0.849
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]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.88).
BP6
Variant 11-77156857-C-T is Benign according to our data. Variant chr11-77156857-C-T is described in ClinVar as [Benign]. Clinvar id is 43307.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars. Variant chr11-77156857-C-T is described in Lovd as [Likely_benign].
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.197 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
MYO7ANM_000260.4 linkuse as main transcriptc.593-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000409709.9 NP_000251.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
MYO7AENST00000409709.9 linkuse as main transcriptc.593-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_000260.4 ENSP00000386331 Q13402-1
MYO7AENST00000409619.6 linkuse as main transcriptc.560-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 ENSP00000386635 Q13402-8
MYO7AENST00000458637.6 linkuse as main transcriptc.593-5C>T splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 ENSP00000392185 P1Q13402-2

Frequencies

GnomAD3 genomes
AF:
0.0577
AC:
8785
AN:
152130
Hom.:
852
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.201
Gnomad AMI
AF:
0.00877
Gnomad AMR
AF:
0.0196
Gnomad ASJ
AF:
0.000865
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000621
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00316
Gnomad NFE
AF:
0.00104
Gnomad OTH
AF:
0.0492
GnomAD3 exomes
AF:
0.0146
AC:
3636
AN:
249124
Hom.:
318
AF XY:
0.0112
AC XY:
1516
AN XY:
135164
show subpopulations
Gnomad AFR exome
AF:
0.204
Gnomad AMR exome
AF:
0.00945
Gnomad ASJ exome
AF:
0.000796
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000261
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000647
Gnomad OTH exome
AF:
0.00926
GnomAD4 exome
AF:
0.00602
AC:
8798
AN:
1461626
Hom.:
786
Cov.:
32
AF XY:
0.00513
AC XY:
3731
AN XY:
727098
show subpopulations
Gnomad4 AFR exome
AF:
0.206
Gnomad4 AMR exome
AF:
0.0104
Gnomad4 ASJ exome
AF:
0.000803
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000475
Gnomad4 FIN exome
AF:
0.0000188
Gnomad4 NFE exome
AF:
0.000442
Gnomad4 OTH exome
AF:
0.0129
GnomAD4 genome
AF:
0.0578
AC:
8803
AN:
152248
Hom.:
854
Cov.:
33
AF XY:
0.0559
AC XY:
4158
AN XY:
74448
show subpopulations
Gnomad4 AFR
AF:
0.200
Gnomad4 AMR
AF:
0.0196
Gnomad4 ASJ
AF:
0.000865
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000414
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00104
Gnomad4 OTH
AF:
0.0487
Alfa
AF:
0.0203
Hom.:
270
Bravo
AF:
0.0649
Asia WGS
AF:
0.0140
AC:
51
AN:
3478
EpiCase
AF:
0.00131
EpiControl
AF:
0.00107

ClinVar

Significance: Benign
Submissions summary: Benign:9
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Benign:4
Benign, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 31, 2024- -
Benign, criteria provided, single submitterclinical testingGeneDxMar 03, 2015- -
Benign, criteria provided, single submitterclinical testingAthena DiagnosticsNov 12, 2018- -
Benign, criteria provided, single submitternot providedBreakthrough Genomics, Breakthrough Genomics-- -
not specified Benign:1
Benign, criteria provided, single submitterclinical testingLaboratory for Molecular Medicine, Mass General Brigham Personalized MedicineJul 20, 2009- -
Autosomal recessive nonsyndromic hearing loss 2 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Autosomal dominant nonsyndromic hearing loss 11 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -
Usher syndrome type 1B Benign:1
Benign, no assertion criteria providedclinical testingNatera, Inc.Sep 16, 2020- -
Usher syndrome type 1 Benign:1
Benign, criteria provided, single submitterclinical testingIllumina Laboratory Services, IlluminaJan 12, 2018This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as benign is not then subjected to further curation. The score for this variant resulted in a classification of benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.88
CADD
Benign
0.24
DANN
Benign
0.44

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.000012
dbscSNV1_RF
Benign
0.0060
SpliceAI score (max)
0.020
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.

Other links and lift over

dbSNP: rs762666; hg19: chr11-76867903; API