rs149424705
Variant summary
Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate
The NM_003900.5(SQSTM1):c.800G>A(p.Arg267His) variant causes a missense change. The variant allele was found at a frequency of 0.000096 in 1,614,178 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. R267C) has been classified as Uncertain significance.
Frequency
Consequence
NM_003900.5 missense
Scores
Clinical Significance
Conservation
Publications
- neurodegeneration with ataxia, dystonia, and gaze palsy, childhood-onsetInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Illumina
- frontotemporal dementia and/or amyotrophic lateral sclerosis 3Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen
- osteosarcomaInheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
- Paget disease of bone 3Inheritance: AD Classification: STRONG, LIMITED Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- amyotrophic lateral sclerosisInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- behavioral variant of frontotemporal dementiaInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- frontotemporal dementia with motor neuron diseaseInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -2 ACMG points.
Variant Effect in Transcripts
ACMG analysis was done for transcript: NM_003900.5. You can select a different transcript below to see updated ACMG assignments.
RefSeq Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| SQSTM1 | NM_003900.5 | MANE Select | c.800G>A | p.Arg267His | missense | Exon 6 of 8 | NP_003891.1 | ||
| SQSTM1 | NM_001142298.2 | c.548G>A | p.Arg183His | missense | Exon 7 of 9 | NP_001135770.1 | |||
| SQSTM1 | NM_001142299.2 | c.548G>A | p.Arg183His | missense | Exon 7 of 9 | NP_001135771.1 |
Ensembl Transcripts
| Selected | Gene | Transcript | Tags | HGVSc | HGVSp | Effect | Exon Rank | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|---|
| SQSTM1 | ENST00000389805.9 | TSL:1 MANE Select | c.800G>A | p.Arg267His | missense | Exon 6 of 8 | ENSP00000374455.4 | ||
| SQSTM1 | ENST00000360718.5 | TSL:1 | c.548G>A | p.Arg183His | missense | Exon 5 of 7 | ENSP00000353944.5 | ||
| SQSTM1 | ENST00000510187.5 | TSL:5 | c.800G>A | p.Arg267His | missense | Exon 6 of 7 | ENSP00000424477.1 |
Frequencies
GnomAD3 genomes AF: 0.0000723 AC: 11AN: 152174Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000716 AC: 18AN: 251446 AF XY: 0.000103 show subpopulations
GnomAD4 exome AF: 0.0000978 AC: 143AN: 1461886Hom.: 0 Cov.: 40 AF XY: 0.0000963 AC XY: 70AN XY: 727244 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000788 AC: 12AN: 152292Hom.: 0 Cov.: 33 AF XY: 0.0000671 AC XY: 5AN XY: 74476 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Inborn genetic diseases Uncertain:1
The c.800G>A (p.R267H) alteration is located in exon 6 (coding exon 6) of the SQSTM1 gene. This alteration results from a G to A substitution at nucleotide position 800, causing the arginine (R) at amino acid position 267 to be replaced by a histidine (H). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear.
SQSTM1-related disorder Uncertain:1
The SQSTM1 c.800G>A variant is predicted to result in the amino acid substitution p.Arg267His. To our knowledge, this variant has not been reported in the literature in individuals with SQSTM1-related disorders. An alternative variant at the same codon (p.Arg267Cys) has been reported together with a variant in the DAO gene in a patient with sporadic amyotrophic lateral sclerosis (Table S3, Liu et al. 2021. PubMed ID: 34275688). This variant is reported in 0.016% of alleles in individuals of South Asian descent in gnomAD.At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence.
Paget disease of bone 2, early-onset;C5779877:Frontotemporal dementia and/or amyotrophic lateral sclerosis 1 Uncertain:1
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 267 of the SQSTM1 protein (p.Arg267His). This variant is present in population databases (rs149424705, gnomAD 0.02%). This variant has not been reported in the literature in individuals affected with SQSTM1-related conditions. ClinVar contains an entry for this variant (Variation ID: 475405). 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) indicates that this missense variant is not expected to disrupt SQSTM1 protein function with a negative predictive value of 80%. 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