rs1392938040

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 1P and 0B. PP3

The NM_003900.5(SQSTM1):​c.530A>C​(p.Glu177Ala) variant causes a missense, splice region change. The variant allele was found at a frequency of 0.0000316 in 1,613,722 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 2/3 splice prediction tools predicting alterations to normal splicing. 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. E177Q) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000031 ( 0 hom. )

Consequence

SQSTM1
NM_003900.5 missense, splice_region

Scores

1
6
12
Splicing: ADA: 0.9657
2

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.67

Publications

0 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: Uncertain_significance. The variant received 1 ACMG points.

PP3
Splicing predictors support a deleterious effect. Scorers claiming Pathogenic: dbscSNV1_ADA, dbscSNV1_RF. No scorers claiming Uncertain. Scorers claiming Benign: max_spliceai.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
SQSTM1NM_003900.5 linkc.530A>C p.Glu177Ala missense_variant, splice_region_variant Exon 3 of 8 ENST00000389805.9 NP_003891.1 Q13501-1
SQSTM1NM_001142298.2 linkc.278A>C p.Glu93Ala missense_variant, splice_region_variant Exon 4 of 9 NP_001135770.1 Q13501-2
SQSTM1NM_001142299.2 linkc.278A>C p.Glu93Ala missense_variant, splice_region_variant Exon 4 of 9 NP_001135771.1 Q13501-2

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
SQSTM1ENST00000389805.9 linkc.530A>C p.Glu177Ala missense_variant, splice_region_variant Exon 3 of 8 1 NM_003900.5 ENSP00000374455.4 Q13501-1

Frequencies

GnomAD3 genomes
AF:
0.0000328
AC:
5
AN:
152218
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000241
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:
0.0000588
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.0000315
AC:
46
AN:
1461504
Hom.:
0
Cov.:
31
AF XY:
0.0000330
AC XY:
24
AN XY:
727062
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44722
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53040
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.0000414
AC:
46
AN:
1112008
Other (OTH)
AF:
0.00
AC:
0
AN:
60394
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.496
Heterozygous variant carriers
0
3
7
10
14
17
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:
0.0000328
AC:
5
AN:
152218
Hom.:
0
Cov.:
32
AF XY:
0.0000134
AC XY:
1
AN XY:
74364
show subpopulations
African (AFR)
AF:
0.0000241
AC:
1
AN:
41468
American (AMR)
AF:
0.00
AC:
0
AN:
15284
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5194
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10628
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000588
AC:
4
AN:
68020
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.505
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.00
Hom.:
0
Bravo
AF:
0.0000151

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Paget disease of bone 2, early-onset;C5779877:Frontotemporal dementia and/or amyotrophic lateral sclerosis 1 Uncertain:1
Dec 06, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glutamic acid, which is acidic and polar, with alanine, which is neutral and non-polar, at codon 177 of the SQSTM1 protein (p.Glu177Ala). This variant is not present in population databases (gnomAD no frequency). 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: 542156). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be tolerated. 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
0.12
BayesDel_addAF
Uncertain
0.085
D
BayesDel_noAF
Benign
-0.12
CADD
Pathogenic
26
DANN
Uncertain
0.99
DEOGEN2
Uncertain
0.68
.;.;D;T;.
Eigen
Benign
-0.049
Eigen_PC
Benign
0.053
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Benign
0.82
T;T;T;.;T
M_CAP
Benign
0.079
D
MetaRNN
Benign
0.40
T;T;T;T;T
MetaSVM
Uncertain
-0.22
T
MutationAssessor
Uncertain
2.1
.;.;M;.;.
PhyloP100
6.7
PrimateAI
Benign
0.42
T
PROVEAN
Uncertain
-2.9
D;D;D;D;D
REVEL
Benign
0.19
Sift
Benign
0.050
D;D;D;D;D
Sift4G
Benign
0.19
T;T;T;T;T
Polyphen
0.0030, 0.16
.;.;B;B;.
Vest4
0.66, 0.62, 0.68
MutPred
0.28
.;.;Gain of MoRF binding (P = 0.045);Gain of MoRF binding (P = 0.045);.;
MVP
0.95
MPC
0.15
ClinPred
0.89
D
GERP RS
4.7
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
2.8
Varity_R
0.20
gMVP
0.67
Mutation Taster
=60/40
polymorphism

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Pathogenic
0.97
dbscSNV1_RF
Pathogenic
0.85
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: rs1392938040; hg19: chr5-179251086; API