dbSNP rs1060502047: SCN9A:p.Asp1959Gly (chr2-166198763-T-C) – ACMG Classification: Uncertain_significance (4 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 4 ACMG points: 4P and 0B. PM2PM5

The NM_001365536.1(SCN9A):c.5876A>G(p.Asp1959Gly) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,274 control chromosomes in the GnomAD database, with no homozygous occurrence. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. D1959A) has been classified as Likely pathogenic.

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

SCN9A
NM_001365536.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 6.21

Publications

0 publications found

Variant links:

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]

SCN9A links:

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

SCN1A-AS1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

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

PM2

Very rare variant in population databases, with high coverage;

PM5

Other missense variant is known to change same aminoacid residue: Variant chr2-166198763-T-G is described in ClinVar as Likely_pathogenic. ClinVar VariationId is 408574.Status of the report is criteria_provided_single_submitter, 1 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001365536.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SCN9A	NM_001365536.1	MANE Select	c.5876A>G	p.Asp1959Gly	missense	Exon 27 of 27	NP_001352465.1	Q15858-1
SCN9A	NM_002977.4		c.5843A>G	p.Asp1948Gly	missense	Exon 27 of 27	NP_002968.2	Q15858-3
SCN1A-AS1	NR_110260.1		n.432-876T>C		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SCN9A	ENST00000642356.2	MANE Select	c.5876A>G	p.Asp1959Gly	missense	Exon 27 of 27	ENSP00000495601.1	Q15858-1
SCN9A	ENST00000303354.11	TSL:5	c.5876A>G	p.Asp1959Gly	missense	Exon 27 of 27	ENSP00000304748.7	Q15858-1
SCN9A	ENST00000409672.5	TSL:5	c.5843A>G	p.Asp1948Gly	missense	Exon 27 of 27	ENSP00000386306.1	Q15858-3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

6.84e-7

AC:

AN:

1461274

Hom.:

Cov.:

AF XY:

0.00000138

AC XY:

AN XY:

726828

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44642

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26124

East Asian (EAS)

AF:

0.00

AC:

AN:

39682

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86216

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53398

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1111590

Other (OTH)

AF:

0.00

AC:

AN:

60374

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.475

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.33

BayesDel_addAF

Pathogenic

0.27

BayesDel_noAF

Pathogenic

0.15

CADD

Uncertain

(source)

DANN

Uncertain

0.99

DEOGEN2

Uncertain

0.61

Eigen

Uncertain

0.21

Eigen_PC

Uncertain

0.36

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.90

M_CAP

Uncertain

0.16

MetaRNN

Uncertain

0.70

MetaSVM

Uncertain

0.70

MutationAssessor

Uncertain

2.7

PhyloP100

6.2

PrimateAI

Uncertain

0.56

PROVEAN

Pathogenic

-5.8

REVEL

Uncertain

0.58

Sift

Uncertain

0.0010

Sift4G

Uncertain

0.050

Vest4

0.33

MutPred

0.35

Gain of glycosylation at S1946 (P = 0.1213)

MVP

0.79

MPC

0.64

ClinPred

1.0

GERP RS

5.9

Varity_R

0.78

gMVP

0.41

Mutation Taster

=15/85

disease causing

(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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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Computational scores

Splicing

Publications

Other links and lift over