11-77142700-C-T
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Variant summary
Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PM2BP4_StrongBP6
The NM_000260.4(MYO7A):c.19-9C>T variant causes a splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000201 in 1,600,746 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).
Frequency
Genomes: 𝑓 0.00019 ( 0 hom., cov: 33)
Exomes 𝑓: 0.00020 ( 0 hom. )
Consequence
MYO7A
NM_000260.4 splice_polypyrimidine_tract, intron
NM_000260.4 splice_polypyrimidine_tract, intron
Scores
2
Splicing: ADA: 0.00008227
2
Clinical Significance
Conservation
PhyloP100: -1.10
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 Likely_benign. Variant got -3 ACMG points.
PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.63).
BP6
Variant 11-77142700-C-T is Benign according to our data. Variant chr11-77142700-C-T is described in ClinVar as [Conflicting_classifications_of_pathogenicity]. Clinvar id is 748880.We mark this variant Likely_benign, oryginal submissions are: {Likely_benign=2, Uncertain_significance=3}.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
|---|---|---|---|---|---|---|---|
| MYO7A | NM_000260.4 | c.19-9C>T | splice_polypyrimidine_tract_variant, intron_variant | ENST00000409709.9 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| MYO7A | ENST00000409709.9 | c.19-9C>T | splice_polypyrimidine_tract_variant, intron_variant | 1 | NM_000260.4 | ||||
| MYO7A | ENST00000409619.6 | c.-15-9C>T | splice_polypyrimidine_tract_variant, intron_variant | 1 | |||||
| MYO7A | ENST00000458637.6 | c.19-9C>T | splice_polypyrimidine_tract_variant, intron_variant | 1 | P1 | ||||
| MYO7A | ENST00000660626.1 | c.109-9C>T | splice_polypyrimidine_tract_variant, intron_variant |
Frequencies
GnomAD3 genomes 0.000191 AC: 29AN: 152170Hom.: 0 Cov.: 33
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GnomAD3 exomes AF: 0.000138 AC: 32AN: 232386Hom.: 0 AF XY: 0.000127 AC XY: 16AN XY: 125828
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GnomAD4 exome AF: 0.000202 AC: 293AN: 1448576Hom.: 0 Cov.: 30 AF XY: 0.000197 AC XY: 142AN XY: 719510
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GnomAD4 genome 0.000191 AC: 29AN: 152170Hom.: 0 Cov.: 33 AF XY: 0.000161 AC XY: 12AN XY: 74330
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ClinVar
Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:4Benign:2
Revision: criteria provided, conflicting classifications
LINK: link
Submissions by phenotype
not provided Benign:2
| Likely benign, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Jan 29, 2024 | - - |
| Likely benign, criteria provided, single submitter | clinical testing | GeneDx | Apr 11, 2019 | - - |
Autosomal recessive nonsyndromic hearing loss 2 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Autosomal dominant nonsyndromic hearing loss 11 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. - |
Usher syndrome type 1B Uncertain:1
| Uncertain significance, no assertion criteria provided | clinical testing | Natera, Inc. | Jan 24, 2020 | - - |
Usher syndrome type 1 Uncertain:1
| Uncertain significance, criteria provided, single submitter | clinical testing | Illumina Laboratory Services, Illumina | Jan 13, 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, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance 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