chr11-77156857-C-T
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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
NM_000260.4 splice_region, splice_polypyrimidine_tract, intron
Scores
2
Splicing: ADA: 0.00001200
2
Clinical Significance
Conservation
PhyloP100: -0.849
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 |
|---|---|---|---|---|---|---|---|---|
| MYO7A | NM_000260.4 | c.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 |
|---|---|---|---|---|---|---|---|---|---|---|
| MYO7A | ENST00000409709.9 | c.593-5C>T | splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant | 1 | NM_000260.4 | ENSP00000386331 | ||||
| MYO7A | ENST00000409619.6 | c.560-5C>T | splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant | 1 | ENSP00000386635 | |||||
| MYO7A | ENST00000458637.6 | c.593-5C>T | splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant | 1 | ENSP00000392185 | P1 |
Frequencies
GnomAD3 genomes 0.0577 AC: 8785AN: 152130Hom.: 852 Cov.: 33
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GnomAD3 exomes AF: 0.0146 AC: 3636AN: 249124Hom.: 318 AF XY: 0.0112 AC XY: 1516AN XY: 135164
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GnomAD4 exome AF: 0.00602 AC: 8798AN: 1461626Hom.: 786 Cov.: 32 AF XY: 0.00513 AC XY: 3731AN XY: 727098
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GnomAD4 genome 0.0578 AC: 8803AN: 152248Hom.: 854 Cov.: 33 AF XY: 0.0559 AC XY: 4158AN XY: 74448
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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 submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 31, 2024 | - - |
| Benign, criteria provided, single submitter | clinical testing | GeneDx | Mar 03, 2015 | - - |
| Benign, criteria provided, single submitter | clinical testing | Athena Diagnostics | Nov 12, 2018 | - - |
| Benign, criteria provided, single submitter | not provided | Breakthrough Genomics, Breakthrough Genomics | - | - - |
not specified Benign:1
| Benign, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | Jul 20, 2009 | - - |
Autosomal recessive nonsyndromic hearing loss 2 Benign:1
| Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 12, 2018 | This 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 submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 12, 2018 | This 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 provided | clinical testing | Natera, Inc. | Sep 16, 2020 | - - |
Usher syndrome type 1 Benign:1
| Benign, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 12, 2018 | This 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
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Name
Calibrated prediction
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BayesDel_noAF
Benign
CADD
Benign
DANN
Benign
Splicing
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dbscSNV1_ADA
Benign
dbscSNV1_RF
Benign
SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at