11-22262162-G-T
Variant summary
Our verdict is Pathogenic. Variant got 11 ACMG points: 11P and 0B. PM1PP3PP5_Very_Strong
The ENST00000324559.9(ANO5):c.1664G>T(p.Ser555Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000663 in 1,613,824 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Likely pathogenic (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S555R) has been classified as Uncertain significance.
Frequency
Consequence
ENST00000324559.9 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 11 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
ANO5 | NM_213599.3 | c.1664G>T | p.Ser555Ile | missense_variant | 16/22 | ENST00000324559.9 | NP_998764.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
ANO5 | ENST00000324559.9 | c.1664G>T | p.Ser555Ile | missense_variant | 16/22 | 1 | NM_213599.3 | ENSP00000315371 | P2 | |
ENST00000526935.1 | n.88+7C>A | splice_region_variant, intron_variant, non_coding_transcript_variant | 3 |
Frequencies
GnomAD3 genomes AF: 0.000138 AC: 21AN: 152148Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000677 AC: 17AN: 251236Hom.: 0 AF XY: 0.0000736 AC XY: 10AN XY: 135796
GnomAD4 exome AF: 0.0000588 AC: 86AN: 1461676Hom.: 1 Cov.: 32 AF XY: 0.0000660 AC XY: 48AN XY: 727140
GnomAD4 genome AF: 0.000138 AC: 21AN: 152148Hom.: 0 Cov.: 32 AF XY: 0.000148 AC XY: 11AN XY: 74326
ClinVar
Submissions by phenotype
not provided Pathogenic:3Uncertain:1
Pathogenic, criteria provided, single submitter | clinical testing | GeneDx | Apr 02, 2020 | Published functional studies demonstrate a damaging effect with a loss of function mechanism (Di Zanni et al., 2020); In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; This variant is associated with the following publications: (PMID: 26886200, 27911336, 25891276, 31341644, 29382405, 31791368, 32112655, 31395899, 30564623, 32528171) - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Revvity Omics, Revvity | Jun 12, 2023 | - - |
Likely pathogenic, criteria provided, single submitter | clinical testing | Institute of Medical Genetics and Applied Genomics, University Hospital Tübingen | Oct 23, 2020 | - - |
Uncertain significance, flagged submission | clinical testing | Eurofins Ntd Llc (ga) | Aug 30, 2018 | - - |
Miyoshi muscular dystrophy 3 Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | MGZ Medical Genetics Center | Apr 01, 2022 | - - |
Muscular dystrophy Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Laboratory for Molecular Medicine, Mass General Brigham Personalized Medicine | May 24, 2023 | The p.Ser555Ile variant in ANO5 has been reported in the compound heterozygous state in 6 individuals with limb-girdle muscular dystrophy and other myopathy phenotypes (Kuhn 2016 PMID: 26886200, Ylikallio 2016 PMID: 27911336, Nallamilli 2018 PMID: 30564623, Wu 2018 PMID: 29382405, Jarmula 2019 PMID: 31395899, Božović 2021 PMID: 34106991). It has also been identified in 0.02% (22/129024) of European non-Finnish chromosomes by gnomAD (http://gnomad.broadinstitute.org). However, this frequency is low enough to be consistent with a recessive allele frequency. This variant was identified through WGS in compound heterozygosity with a likely pathogenic variant in an adult male with adult-onset muscular dystrophy with mild distal weakness and hyperCKemia by the Broad Institute Rare Genomes Project. This variant has also been reported in ClinVar (Variation ID 286450). Computational prediction tools and conservation analyses do not provide strong support for or against an impact to the protein. In vitro functional studies provide some evidence that this variant impacts protein function (Di Zanni 2020 PMID: 32112655); however, these types of assays may not accurately represent biological function. In summary, although additional studies are required to fully establish its clinical significance, this variant meets criteria to be classified as likely pathogenic for autosomal recessive ANO5-related muscle disease. ACMG/AMP Criteria applied: PM3_strong, PM2_supporting, PS3_supporting. - |
Elevated circulating creatine kinase concentration;C0427065:Distal muscle weakness;C4021082:Fatty replacement of skeletal muscle Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Centre for Mendelian Genomics, University Medical Centre Ljubljana | Jan 01, 2017 | - - |
Gnathodiaphyseal dysplasia;C1969785:Autosomal recessive limb-girdle muscular dystrophy type 2L Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Dec 18, 2023 | This sequence change replaces serine, which is neutral and polar, with isoleucine, which is neutral and non-polar, at codon 555 of the ANO5 protein (p.Ser555Ile). This variant is present in population databases (rs375014127, gnomAD 0.02%). This missense change has been observed in individual(s) with autosomal recessive ANO5-related conditions (PMID: 26886200, 27911336, 30564623, 31395899). In at least one individual the data is consistent with being in trans (on the opposite chromosome) from a pathogenic variant. ClinVar contains an entry for this variant (Variation ID: 286450). 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 expected to disrupt ANO5 protein function with a positive predictive value of 95%. Experimental studies have shown that this missense change affects ANO5 function (PMID: 32112655). For these reasons, this variant has been classified as Pathogenic. - |
Gnathodiaphyseal dysplasia Pathogenic:1
Pathogenic, criteria provided, single submitter | clinical testing | Centre for Mendelian Genomics, University Medical Centre Ljubljana | Jan 01, 2016 | This variant was classified as: Pathogenic. The following ACMG criteria were applied in classifying this variant: PS1,PM2,PM3,PP4,PP5. - |
Autosomal recessive limb-girdle muscular dystrophy type 2L Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | 3billion | Jan 03, 2022 | Same nucleotide change resulting in same amino acid change has been previously reported as pathogenic/likely pathogenic with strong evidence (ClinVar ID: VCV000286450, PS1_S). It is observed at an extremely low frequency in the gnomAD v2.1.1 dataset (total allele frequency: 0.000092, PM2_M). The variant has been reported to be in trans with a pathogenic variant as either compound heterozygous or homozygous in at least one similarly affected unrelated individual (PMID: 26886200, 27911336, PM3_M). Therefore, this variant is classified as likely pathogenic according to the recommendation of ACMG/AMP guideline. - |
Myopathy Pathogenic:1
Likely pathogenic, criteria provided, single submitter | clinical testing | Centre for Mendelian Genomics, University Medical Centre Ljubljana | Dec 12, 2014 | - - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at