dbSNP rs759003928: SCN9A:p.Trp1161* (chr2-166242647-C-T) – ACMG Classification: Likely_pathogenic (8 pts)

Variant summary

Our verdict is Likely pathogenic. The variant received 8 ACMG points: 8P and 0B. PVS1

The NM_001365536.1(SCN9A):c.3482G>A(p.Trp1161*) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000163 in 1,548,866 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Variant results in nonsense mediated mRNA decay.

Frequency

Genomes: 𝑓 0.00012 ( 0 hom., cov: 32)

Exomes 𝑓: 0.00017 ( 0 hom. )

Consequence

SCN9A
NM_001365536.1 stop_gained

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:2U:4B:2

Conservation

PhyloP100: -0.516

Publications

3 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: Likely_pathogenic. The variant received 8 ACMG points.

PVS1

Loss of function variant, product undergoes nonsense mediated mRNA decay. LoF is a known mechanism of disease.

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.3482G>A	p.Trp1161*	stop_gained	Exon 19 of 27	NP_001352465.1	Q15858-1
SCN9A	NM_002977.4		c.3449G>A	p.Trp1150*	stop_gained	Exon 19 of 27	NP_002968.2	Q15858-3
SCN1A-AS1	NR_110260.1		n.612-5548C>T		intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
SCN9A	ENST00000642356.2	MANE Select	c.3482G>A	p.Trp1161*	stop_gained	Exon 19 of 27	ENSP00000495601.1	Q15858-1
SCN9A	ENST00000303354.11	TSL:5	c.3482G>A	p.Trp1161*	stop_gained	Exon 19 of 27	ENSP00000304748.7	Q15858-1
SCN9A	ENST00000409672.5	TSL:5	c.3449G>A	p.Trp1150*	stop_gained	Exon 19 of 27	ENSP00000386306.1	Q15858-3

Frequencies

GnomAD3 genomes

AF:

0.000118

AC:

AN:

151978

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000725

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.000415

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.000478

GnomAD2 exomes

AF:

0.000146

AC:

AN:

157238

AF XY:

0.000193

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:

0.000119

Gnomad NFE exome

AF:

0.000163

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.000168

AC:

234

AN:

1396888

Hom.:

Cov.:

AF XY:

0.000174

AC XY:

120

AN XY:

688952

show subpopulations

African (AFR)

AF:

0.0000317

AC:

AN:

31546

American (AMR)

AF:

0.0000282

AC:

AN:

35520

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25092

East Asian (EAS)

AF:

0.00

AC:

AN:

35764

South Asian (SAS)

AF:

0.000369

AC:

AN:

78690

European-Finnish (FIN)

AF:

0.0000609

AC:

AN:

49288

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5680

European-Non Finnish (NFE)

AF:

0.000172

AC:

185

AN:

1077394

Other (OTH)

AF:

0.000259

AC:

AN:

57914

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.476

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000118

AC:

AN:

151978

Hom.:

Cov.:

AF XY:

0.0000674

AC XY:

AN XY:

74238

show subpopulations

African (AFR)

AF:

0.0000725

AC:

AN:

41374

American (AMR)

AF:

0.00

AC:

AN:

15220

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.00

AC:

AN:

5182

South Asian (SAS)

AF:

0.000415

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10606

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.000176

AC:

AN:

67990

Other (OTH)

AF:

0.000478

AC:

AN:

2090

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.469

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.000151

Hom.:

Bravo

AF:

0.000113

ExAC

AF:

0.000133

AC:

ClinVar

ClinVar submissions

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (3)

Inborn genetic diseases (1)

Paroxysmal extreme pain disorder (1)

Primary erythromelalgia (1)

Primary erythromelalgia;C1833661:Paroxysmal extreme pain disorder;C1855739:Channelopathy-associated congenital insensitivity to pain, autosomal recessive;C2752089:Neuropathy, hereditary sensory and autonomic, type 2A (1)

See cases (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_addAF

Uncertain

0.13

BayesDel_noAF

Pathogenic

0.29

CADD

Pathogenic

(source)

DANN

Uncertain

0.99

Eigen

Uncertain

0.41

Eigen_PC

Benign

0.12

FATHMM_MKL

Benign

0.049

PhyloP100

-0.52

Vest4

0.85

GERP RS

1.7

Mutation Taster

=14/186

disease causing (fs/PTC)

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.28

Details are displayed if max score is > 0.2

DS_AL_spliceai

0.28

Position offset: 9

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

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over