chr2-166198819-G-T

Variant names:

• chr2-166198819-G-T
• NM_001365536.1:c.5820C>A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM2

The NM_001365536.1(SCN9A):​c.5820C>A​(p.Asn1940Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,012 control chromosomes in the GnomAD database, with no homozygous occurrence. 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: SCN9A NM_001365536.1 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 1.67

Genes affected

SCN9A (HGNC:10597): (sodium voltage-gated channel alpha subunit 9) This gene encodes a voltage-gated sodium channel which plays a significant role in nociception signaling. Mutations in this gene have been associated with primary erythermalgia, channelopathy-associated insensitivity to pain, and paroxysmal extreme pain disorder. [provided by RefSeq, Aug 2009]

SCN1A-AS1 (HGNC:54069): (SCN1A and SCN9A antisense RNA 1)

ACMG classification

Verdict is Uncertain_significance. Variant got 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCN9A	NM_001365536.1	c.5820C>A	p.Asn1940Lys	missense_variant	Exon 27 of 27	ENST00000642356.2	NP_001352465.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
SCN9A	ENST00000642356.2	c.5820C>A	p.Asn1940Lys	missense_variant	Exon 27 of 27		NM_001365536.1	ENSP00000495601.1
SCN9A	ENST00000303354.11	c.5820C>A	p.Asn1940Lys	missense_variant	Exon 27 of 27	5		ENSP00000304748.7
SCN9A	ENST00000409672.5	c.5787C>A	p.Asn1929Lys	missense_variant	Exon 27 of 27	5		ENSP00000386306.1
SCN9A	ENST00000645907.1	c.5787C>A	p.Asn1929Lys	missense_variant	Exon 27 of 27			ENSP00000495983.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome AF: 6.84e-7 AC: 1 AN: 1461012 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 726720

Gnomad4 AFR exome AF: 0.00

Gnomad4 AMR exome AF: 0.00

Gnomad4 ASJ exome AF: 0.00

Gnomad4 EAS exome AF: 0.00

Gnomad4 SAS exome AF: 0.0000116

Gnomad4 FIN exome AF: 0.00

Gnomad4 NFE exome AF: 0.00

Gnomad4 OTH exome AF: 0.00

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.15
BayesDel_addAF	Uncertain	0.12	D
BayesDel_noAF	Uncertain	-0.070
CADD	Benign	18
DANN	Benign	0.97
DEOGEN2	Uncertain	0.56	.;D;.;.;D;.
Eigen	Benign	-0.15
Eigen_PC	Benign	-0.074
FATHMM_MKL	Pathogenic	0.98	D
LIST_S2	Uncertain	0.89	D;.;D;D;D;D
M_CAP	Uncertain	0.13	D
MetaRNN	Uncertain	0.42	T;T;T;T;T;T
MetaSVM	Uncertain	0.59	D
MutationAssessor	Benign	1.8	.;L;.;.;L;L
PrimateAI	Benign	0.47	T
PROVEAN	Uncertain	-4.2	D;.;.;.;.;D
REVEL	Uncertain	0.46
Sift	Uncertain	0.0060	D;.;.;.;.;D
Sift4G	Benign	0.33	T;T;.;.;.;T
Vest4		0.18
MutPred		0.29		Gain of ubiquitination at N1929 (P = 7e-04);.;Gain of ubiquitination at N1929 (P = 7e-04);.;.;.;
MVP		0.66
MPC		0.14
ClinPred		0.74	D
GERP RS		3.3
Varity_R		0.34
gMVP		0.34

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: chr2-167055329;