chr5-179823038-C-G

Variant names:

• chr5-179823038-C-G
• rs886039782
• NM_003900.5:c.286C>G

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2 PP3_Moderate

The NM_003900.5(SQSTM1):​c.286C>G​(p.Arg96Gly) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,786 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 6.8e-7 (0 hom.)
• Consequence: SQSTM1 NM_003900.5 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 7.72
• Publications: 0 publications found

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

ACMG classification

Our verdict: Uncertain_significance. The variant received 4 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.89

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SQSTM1	NM_003900.5	c.286C>G	p.Arg96Gly	missense_variant	Exon 2 of 8	ENST00000389805.9	NP_003891.1
SQSTM1	NM_001142298.2	c.34C>G	p.Arg12Gly	missense_variant	Exon 3 of 9		NP_001135770.1
SQSTM1	NM_001142299.2	c.34C>G	p.Arg12Gly	missense_variant	Exon 3 of 9		NP_001135771.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SQSTM1	ENST00000389805.9	c.286C>G	p.Arg96Gly	missense_variant	Exon 2 of 8	1	NM_003900.5	ENSP00000374455.4

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461786 Hom.: 0 Cov.: 30 AF XY: 0.00 AC XY: 0 AN XY: 727206

⚠️ The allele balance in gnomAD version 4 Exomes is significantly skewed from the expected value of 0.5.

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: 39696

South Asian (SAS) AF: 0.00 AC: 0 AN: 86254

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53410

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5762

European-Non Finnish (NFE) AF: 8.99e-7 AC: 1 AN: 1111934

Other (OTH) AF: 0.00 AC: 0 AN: 60392

⚠️ The allele balance in gnomAD4 Exomes is highly skewed from 0.5 (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Pathogenic	0.96
BayesDel_addAF	Pathogenic	0.45	D
BayesDel_noAF	Pathogenic	0.41
CADD	Pathogenic	31
DANN	Uncertain	1.0
DEOGEN2	Uncertain	0.58	.;.;D;T;T;.
Eigen	Pathogenic	0.82
Eigen_PC	Pathogenic	0.79
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.92	D;D;D;D;.;D
M_CAP	Uncertain	0.20	D
MetaRNN	Pathogenic	0.89	D;D;D;D;D;D
MetaSVM	Uncertain	0.71	D
MutationAssessor	Uncertain	2.4	.;.;M;.;.;.
PhyloP100		7.7
PrimateAI	Uncertain	0.62	T
PROVEAN	Pathogenic	-6.0	D;D;D;D;D;D
REVEL	Pathogenic	0.70
Sift	Pathogenic	0.0	D;D;D;D;D;D
Sift4G	Uncertain	0.019	D;D;D;D;D;D
Polyphen		1.0, 1.0	.;.;D;.;D;.
Vest4		0.95, 0.89, 0.91
MutPred		0.70		.;.;Loss of MoRF binding (P = 0.0035);.;Loss of MoRF binding (P = 0.0035);.;
MVP		0.97
MPC		0.68
ClinPred		1.0	D
GERP RS		5.3
Varity_R		0.96
gMVP		0.88
Mutation Taster		=4/96	disease causing

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

Other links and lift over

dbSNP: rs886039782; hg19: chr5-179250038;