rs753685955

Variant names:

Variant summary

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

The NM_003900.5(SQSTM1):c.802C>G(p.Leu268Val) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,614,114 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/22 in silico tools predict 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. L268P) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

SQSTM1
NM_003900.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:4

Conservation

PhyloP100: 3.76

Publications

1 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

SQSTM1 links:

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=0.06951392).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SQSTM1	NM_003900.5 link	c.802C>G	p.Leu268Val	missense_variant	Exon 6 of 8	ENST00000389805.9	NP_003891.1	Q13501-1
SQSTM1	NM_001142298.2 link	c.550C>G	p.Leu184Val	missense_variant	Exon 7 of 9		NP_001135770.1	Q13501-2
SQSTM1	NM_001142299.2 link	c.550C>G	p.Leu184Val	missense_variant	Exon 7 of 9		NP_001135771.1	Q13501-2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SQSTM1	ENST00000389805.9 link	c.802C>G	p.Leu268Val	missense_variant	Exon 6 of 8	1	NM_003900.5	ENSP00000374455.4	Q13501-1
SQSTM1	ENST00000360718.5 link	c.550C>G	p.Leu184Val	missense_variant	Exon 5 of 7	1		ENSP00000353944.5	Q13501-2
SQSTM1	ENST00000510187.5 link	c.802C>G	p.Leu268Val	missense_variant	Exon 6 of 7	5		ENSP00000424477.1	E7EMC7
SQSTM1	ENST00000466342.1 link	n.501C>G		non_coding_transcript_exon_variant	Exon 4 of 4	2

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152224

Hom.:

Cov.:

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:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251452

AF XY:

0.00000736

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:

0.00000879

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000889

AC:

AN:

1461890

Hom.:

Cov.:

AF XY:

0.00000963

AC XY:

AN XY:

727248

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.00

AC:

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000989

AC:

AN:

1112012

Other (OTH)

AF:

0.0000331

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.463

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152224

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74368

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41462

American (AMR)

AF:

0.00

AC:

AN:

15286

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5188

South Asian (SAS)

AF:

0.00

AC:

AN:

4836

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10628

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68032

Other (OTH)

AF:

0.00

AC:

AN:

2092

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.425

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000282

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:4

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Jan 01, 2025

CeGaT Center for Human Genetics Tuebingen

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

SQSTM1: PM2, BP4 -

Feb 23, 2023

Mayo Clinic Laboratories, Mayo Clinic

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

BP4 -

SQSTM1-related disorder

Uncertain:1

Jan 02, 2024

PreventionGenetics, part of Exact Sciences

Significance:Uncertain significance

Review Status:no assertion criteria provided

Collection Method:clinical testing

The SQSTM1 c.802C>G variant is predicted to result in the amino acid substitution p.Leu268Val. This variant has been reported with uncertain significance in an individual with early onset Alzheimer disease and an individual with familial amyotrophic lateral sclerosis; in both individuals, additional variants were reported (Table 3, Cuyvers E et al. 2015. PubMed ID: 25796131; Table 2, Scarlino S et al. 2020. PubMed ID: 32397312). This variant is reported in 0.0015% of alleles in individuals of European (Non-Finnish) 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

Aug 10, 2023

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This variant is present in population databases (rs753685955, gnomAD 0.002%). 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. 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 not expected to disrupt SQSTM1 protein function. ClinVar contains an entry for this variant (Variation ID: 542158). This missense change has been observed in individual(s) with Alzheimer's disease or amyotrophic lateral sclerosis (PMID: 25796131, 32397312). This sequence change replaces leucine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 268 of the SQSTM1 protein (p.Leu268Val). -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.11

BayesDel_addAF

Benign

0.0011

BayesDel_noAF

Benign

-0.24

CADD

Benign

(source)

DANN

Benign

0.77

DEOGEN2

Benign

0.10

T;T;.

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.29

FATHMM_MKL

Uncertain

0.81

LIST_S2

Benign

0.84

T;.;T

M_CAP

Benign

0.042

MetaRNN

Benign

0.070

T;T;T

MetaSVM

Benign

-0.87

MutationAssessor

Benign

1.1

L;.;.

PhyloP100

3.8

PrimateAI

Benign

0.47

PROVEAN

Benign

0.68

N;N;N

REVEL

Benign

0.13

Sift

Benign

1.0

T;T;T

Sift4G

Benign

1.0

T;T;T

Polyphen

0.0040

B;B;.

Vest4

0.053

MutPred

0.15

Loss of catalytic residue at L268 (P = 0.0203);Loss of catalytic residue at L268 (P = 0.0203);.;

MVP

0.86

MPC

0.13

ClinPred

0.11

GERP RS

3.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.081

gMVP

0.22

Mutation Taster

=85/15

polymorphism

(source)

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

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rs753685955

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over