rs773552098

Variant summary

Our verdict is Likely benign. The variant received -2 ACMG points: 0P and 2B. BP4_Moderate

The NM_003900.5(SQSTM1):​c.46G>A​(p.Ala16Thr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000699 in 1,574,758 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000070 ( 0 hom. )

Consequence

SQSTM1
NM_003900.5 missense

Scores

1
2
16

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 0.166

Publications

2 publications found
Variant links:
Genes affected
SQSTM1 (HGNC:11280): (sequestosome 1) This gene encodes a multifunctional protein that binds ubiquitin and regulates activation of the nuclear factor kappa-B (NF-kB) signaling pathway. The protein functions as a scaffolding/adaptor protein in concert with TNF receptor-associated factor 6 to mediate activation of NF-kB in response to upstream signals. Alternatively spliced transcript variants encoding either the same or different isoforms have been identified for this gene. Mutations in this gene result in sporadic and familial Paget disease of bone. [provided by RefSeq, Mar 2009]
SQSTM1 Gene-Disease associations (from GenCC):
  • neurodegeneration with ataxia, dystonia, and gaze palsy, childhood-onset
    Inheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Illumina
  • frontotemporal dementia and/or amyotrophic lateral sclerosis 3
    Inheritance: AD Classification: STRONG, MODERATE Submitted by: Labcorp Genetics (formerly Invitae), Genomics England PanelApp, ClinGen
  • osteosarcoma
    Inheritance: AD Classification: STRONG Submitted by: Genomics England PanelApp
  • Paget disease of bone 3
    Inheritance: AD Classification: STRONG, LIMITED Submitted by: G2P, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
  • amyotrophic lateral sclerosis
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • behavioral variant of frontotemporal dementia
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • frontotemporal dementia with motor neuron disease
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -2 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.114708185).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SQSTM1NM_003900.5 linkc.46G>A p.Ala16Thr missense_variant Exon 1 of 8 ENST00000389805.9 NP_003891.1
SQSTM1NM_001142298.2 linkc.-47-1976G>A intron_variant Intron 2 of 8 NP_001135770.1
SQSTM1NM_001142299.2 linkc.-47-1976G>A intron_variant Intron 2 of 8 NP_001135771.1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SQSTM1ENST00000389805.9 linkc.46G>A p.Ala16Thr missense_variant Exon 1 of 8 1 NM_003900.5 ENSP00000374455.4

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000100
AC:
2
AN:
199356
AF XY:
0.0000178
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000216
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000703
AC:
10
AN:
1422552
Hom.:
0
Cov.:
31
AF XY:
0.00000565
AC XY:
4
AN XY:
707896
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
29864
American (AMR)
AF:
0.00
AC:
0
AN:
42526
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
25220
East Asian (EAS)
AF:
0.00
AC:
0
AN:
36110
South Asian (SAS)
AF:
0.00
AC:
0
AN:
83080
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
39476
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5646
European-Non Finnish (NFE)
AF:
0.00000908
AC:
10
AN:
1101416
Other (OTH)
AF:
0.00
AC:
0
AN:
59214
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.455
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41466
American (AMR)
AF:
0.00
AC:
0
AN:
15292
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5176
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10618
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
314
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68026
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000227

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:5
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:2
Nov 19, 2018
Athena Diagnostics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

Apr 12, 2019
GeneDx
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

Has not been previously published as pathogenic or benign to our knowledge; Not observed in large population cohorts (Lek et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -

Inborn genetic diseases Uncertain:1
Mar 16, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The c.46G>A (p.A16T) alteration is located in exon 1 (coding exon 1) of the SQSTM1 gene. This alteration results from a G to A substitution at nucleotide position 46, causing the alanine (A) at amino acid position 16 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

SQSTM1-related disorder Uncertain:1
Mar 02, 2023
PreventionGenetics, part of Exact Sciences
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The SQSTM1 c.46G>A variant is predicted to result in the amino acid substitution p.Ala16Thr. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.0022% of alleles in individuals of European (Non-Finnish) descent in gnomAD (http://gnomad.broadinstitute.org/variant/5-179247982-G-A). 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
Dec 03, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces alanine, which is neutral and non-polar, with threonine, which is neutral and polar, at codon 16 of the SQSTM1 protein (p.Ala16Thr). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. 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: 423540). 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: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.085
BayesDel_addAF
Benign
-0.12
T
BayesDel_noAF
Benign
-0.41
CADD
Benign
22
DANN
Uncertain
0.99
DEOGEN2
Benign
0.17
T;T;T;T
Eigen
Benign
-0.62
Eigen_PC
Benign
-0.57
FATHMM_MKL
Benign
0.11
N
LIST_S2
Benign
0.82
T;.;T;.
M_CAP
Pathogenic
0.79
D
MetaRNN
Benign
0.11
T;T;T;T
MetaSVM
Benign
-0.80
T
MutationAssessor
Benign
1.0
L;.;.;.
PhyloP100
0.17
PrimateAI
Uncertain
0.72
T
PROVEAN
Benign
-0.82
N;.;N;N
REVEL
Benign
0.038
Sift
Benign
0.56
T;.;T;T
Sift4G
Benign
0.35
T;T;T;T
Polyphen
0.014
B;.;.;B
Vest4
0.18
MutPred
0.29
Loss of helix (P = 0.0104);Loss of helix (P = 0.0104);Loss of helix (P = 0.0104);Loss of helix (P = 0.0104);
MVP
0.86
MPC
0.13
ClinPred
0.070
T
GERP RS
1.5
PromoterAI
0.029
Neutral
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7
Varity_R
0.20
gMVP
0.30
Mutation Taster
=71/29
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.0
Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

Other links and lift over

dbSNP: rs773552098; hg19: chr5-179247982; API