6-159692705-T-G

Variant names:

• chr6-159692705-T-G
• NM_000636.4:c.182A>C

Variant summary

Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2 PP3

The NM_000636.4(SOD2):​c.182A>C​(p.Asn61Thr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

• Frequency: Genomes: not found (cov: 32)
• Consequence: SOD2 NM_000636.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: 7.60

Genes affected

SOD2 (HGNC:11180): (superoxide dismutase 2) This gene is a member of the iron/manganese superoxide dismutase family. It encodes a mitochondrial protein that forms a homotetramer and binds one manganese ion per subunit. This protein binds to the superoxide byproducts of oxidative phosphorylation and converts them to hydrogen peroxide and diatomic oxygen. Mutations in this gene have been associated with idiopathic cardiomyopathy (IDC), premature aging, sporadic motor neuron disease, and cancer. Alternative splicing of this gene results in multiple transcript variants. A related pseudogene has been identified on chromosome 1. [provided by RefSeq, Apr 2016]

ACMG classification

Verdict is Uncertain_significance. Variant got 3 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• PP3: MetaRNN computational evidence supports a deleterious effect, 0.808

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SOD2	NM_000636.4	c.182A>C	p.Asn61Thr	missense_variant	Exon 2 of 5	ENST00000538183.7	NP_000627.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SOD2	ENST00000538183.7	c.182A>C	p.Asn61Thr	missense_variant	Exon 2 of 5	1	NM_000636.4	ENSP00000446252.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 30

GnomAD4 genome Cov.: 32

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

Submissions by phenotype

not specified Uncertain:1

Nov 12, 2021

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.182A>C (p.N61T) alteration is located in exon 2 (coding exon 2) of the SOD2 gene. This alteration results from a A to C substitution at nucleotide position 182, causing the asparagine (N) at amino acid position 61 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.46
BayesDel_addAF	Benign	0.00097	T
BayesDel_noAF	Benign	-0.24
CADD	Pathogenic	28
DANN	Uncertain	0.99
DEOGEN2	Benign	0.28	T;T;.;.;.;T;T;T;T;T;.
Eigen	Pathogenic	0.82
Eigen_PC	Pathogenic	0.74
FATHMM_MKL	Uncertain	0.95	D
LIST_S2	Pathogenic	0.99	.;D;.;D;D;D;D;D;D;D;D
M_CAP	Uncertain	0.14	D
MetaRNN	Pathogenic	0.81	D;D;D;D;D;D;D;D;D;D;D
MetaSVM	Benign	-0.66	T
MutationAssessor	Pathogenic	3.0	M;M;M;M;M;.;.;.;.;.;.
PrimateAI	Uncertain	0.56	T
PROVEAN	Pathogenic	-5.8	D;D;D;D;D;D;D;D;D;D;D
REVEL	Uncertain	0.47
Sift	Uncertain	0.0020	D;D;D;D;D;D;D;D;D;D;D
Sift4G	Uncertain	0.0080	D;D;D;D;D;.;.;.;D;D;D
Polyphen		1.0	D;D;.;.;.;.;.;.;.;D;.
Vest4		0.77
MutPred		0.67		Loss of catalytic residue at N61 (P = 0.0319);Loss of catalytic residue at N61 (P = 0.0319);Loss of catalytic residue at N61 (P = 0.0319);Loss of catalytic residue at N61 (P = 0.0319);Loss of catalytic residue at N61 (P = 0.0319);.;.;.;.;Loss of catalytic residue at N61 (P = 0.0319);.;
MVP		0.82
MPC		0.97
ClinPred		1.0	D
GERP RS		4.9
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.7
Varity_R		0.90
gMVP		0.72

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr6-160113737;