rs145690047
Variant summary
Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4
The NM_001130987.2(DYSF):c.4428C>G(p.Ile1476Met) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000411 in 1,461,392 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 Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. I1476V) has been classified as Uncertain significance.
Frequency
Consequence
NM_001130987.2 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal recessive limb-girdle muscular dystrophyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- neuromuscular disease caused by qualitative or quantitative defects of dysferlinInheritance: AR Classification: DEFINITIVE Submitted by: Myriad Women’s Health
- autosomal recessive limb-girdle muscular dystrophy type 2BInheritance: AR Classification: STRONG, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae)
- distal myopathy with anterior tibial onsetInheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
- congenital myopathy, Paradas typeInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
- Miyoshi myopathyInheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 1 ACMG points.
Transcripts
RefSeq
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| DYSF | ENST00000410020.8 | c.4428C>G | p.Ile1476Met | missense_variant | Exon 40 of 56 | 1 | NM_001130987.2 | ENSP00000386881.3 | ||
| DYSF | ENST00000258104.8 | c.4374C>G | p.Ile1458Met | missense_variant | Exon 40 of 55 | 1 | NM_003494.4 | ENSP00000258104.3 |
Frequencies
GnomAD3 genomes Cov.: 33
GnomAD2 exomes AF: 0.00000399 AC: 1AN: 250432 AF XY: 0.00000739 show subpopulations
GnomAD4 exome AF: 0.00000411 AC: 6AN: 1461392Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5AN XY: 726880 show subpopulations
GnomAD4 genome Cov.: 33
ClinVar
Submissions by phenotype
not provided Uncertain:1
Neuromuscular disease caused by qualitative or quantitative defects of dysferlin Uncertain:1
This sequence change replaces isoleucine, which is neutral and non-polar, with methionine, which is neutral and non-polar, at codon 1458 of the DYSF protein (p.Ile1458Met). This variant is present in population databases (no rsID available, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with DYSF-related conditions. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt DYSF protein function. In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance.
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at