11-3967561-G-A
Variant summary
Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4
The NM_001382567.1(STIM1):c.149G>A(p.Arg50Gln) variant causes a missense change. The variant allele was found at a frequency of 0.0000248 in 1,614,006 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 (★★).
Frequency
Consequence
NM_001382567.1 missense
Scores
Clinical Significance
Conservation
Publications
- myopathy, tubular aggregate, 1Inheritance: AD Classification: DEFINITIVE, STRONG, LIMITED Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), G2P
- Stormorken syndromeInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, G2P
- tubular aggregate myopathyInheritance: AD Classification: DEFINITIVE, SUPPORTIVE Submitted by: Orphanet, ClinGen
- combined immunodeficiency due to STIM1 deficiencyInheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
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ACMG classification
Our verdict: Likely_benign. The variant received -1 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| STIM1 | NM_001382567.1 | c.149G>A | p.Arg50Gln | missense_variant | Exon 2 of 13 | ENST00000526596.2 | NP_001369496.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152156Hom.: 0 Cov.: 32 show subpopulations
GnomAD2 exomes AF: 0.0000199 AC: 5AN: 251418 AF XY: 0.0000294 show subpopulations
GnomAD4 exome AF: 0.0000267 AC: 39AN: 1461850Hom.: 0 Cov.: 31 AF XY: 0.0000289 AC XY: 21AN XY: 727230 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152156Hom.: 0 Cov.: 32 AF XY: 0.0000135 AC XY: 1AN XY: 74330 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1
Variant summary: STIM1 c.149G>A (p.Arg50Gln) results in a conservative amino acid change in the encoded protein sequence. Four of five in-silico tools predict a benign effect of the variant on protein function. The variant allele was found at a frequency of 2e-05 in 251418 control chromosomes (gnomAD). The available data on variant occurrences in the general population are insufficient to allow any conclusion about variant significance. c.149G>A has been reported in the literature in individuals affected with developmental disorder (Kaplanis_2020, Zhou_2022). These reports do not provide unequivocal conclusions about association of the variant with STIM1-Related Disorders. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publications have been ascertained in the context of this evaluation (PMID: 33057194, 35982159). ClinVar contains an entry for this variant (Variation ID: 568734). Based on the evidence outlined above, the variant was classified as uncertain significance. -
Inborn genetic diseases Uncertain:1
The c.149G>A (p.R50Q) alteration is located in exon 2 (coding exon 2) of the STIM1 gene. This alteration results from a G to A substitution at nucleotide position 149, causing the arginine (R) at amino acid position 50 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Myopathy with tubular aggregates;C1861451:Stormorken syndrome;C2748557:Combined immunodeficiency due to STIM1 deficiency Uncertain:1
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 50 of the STIM1 protein (p.Arg50Gln). This variant is present in population databases (rs201245746, gnomAD 0.006%). This variant has not been reported in the literature in individuals affected with STIM1-related conditions. ClinVar contains an entry for this variant (Variation ID: 568734). Invitae Evidence 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 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 STIM1 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