rs150442899
Variant summary
Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM1PP3
The NM_213599.3(ANO5):c.2516T>C(p.Met839Thr) variant causes a missense change. The variant allele was found at a frequency of 0.0000517 in 1,605,842 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. M839R) has been classified as Uncertain significance.
Frequency
Consequence
NM_213599.3 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal recessive limb-girdle muscular dystrophyInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- gnathodiaphyseal dysplasiaInheritance: AD Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
- autosomal recessive limb-girdle muscular dystrophy type 2LInheritance: AR Classification: STRONG, SUPPORTIVE, LIMITED Submitted by: Orphanet, Labcorp Genetics (formerly Invitae), G2P
- Miyoshi muscular dystrophy 3Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Uncertain_significance. The variant received 3 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000659 AC: 1AN: 151850Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000160 AC: 4AN: 250502 AF XY: 0.0000222 show subpopulations
GnomAD4 exome AF: 0.0000564 AC: 82AN: 1453992Hom.: 0 Cov.: 30 AF XY: 0.0000567 AC XY: 41AN XY: 723648 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000659 AC: 1AN: 151850Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74180 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:3
Reported in a patient in the published literature with a suspicion of limb-girdle muscular dystrophy; however, detailed clinical information was not provided (PMID: 30564623); Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; This variant is associated with the following publications: (PMID: 30564623) -
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not specified Uncertain:1
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Gnathodiaphyseal dysplasia;C1969785:Autosomal recessive limb-girdle muscular dystrophy type 2L Uncertain:1
This sequence change replaces methionine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 839 of the ANO5 protein (p.Met839Thr). This variant is present in population databases (rs150442899, gnomAD 0.004%). This missense change has been observed in individual(s) with clinical features of limb-girdle muscular dystrophy (PMID: 30564623). ClinVar contains an entry for this variant (Variation ID: 446842). 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) has been performed at Invitae for this missense variant, however the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on ANO5 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