Genetic Variant SCN9A:p.Thr977Lys (chr2-166272820-G-T) – ACMG Classification: Uncertain_significance (1 pts)

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_001365536.1(SCN9A):c.2930C>A(p.Thr977Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000659 in 151,782 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. T977R) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 31)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

SCN9A
NM_001365536.1 missense

Scores

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 10.0

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 1 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.3900131).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
SCN9A	NM_001365536.1 link	c.2930C>A	p.Thr977Lys	missense_variant	Exon 17 of 27	ENST00000642356.2	NP_001352465.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
SCN9A	ENST00000642356.2 link	c.2930C>A	p.Thr977Lys	missense_variant	Exon 17 of 27		NM_001365536.1	ENSP00000495601.1	Q15858-1
SCN9A	ENST00000303354.11 link	c.2930C>A	p.Thr977Lys	missense_variant	Exon 17 of 27	5		ENSP00000304748.7	Q15858-1
SCN9A	ENST00000409672.5 link	c.2897C>A	p.Thr966Lys	missense_variant	Exon 17 of 27	5		ENSP00000386306.1	Q15858-3
SCN9A	ENST00000645907.1 link	c.2897C>A	p.Thr966Lys	missense_variant	Exon 17 of 27			ENSP00000495983.1	Q15858-4

Frequencies

GnomAD3 genomes

AF:

0.00000659

AC:

AN:

151782

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000147

Gnomad OTH

AF:

0.00

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

1366624

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

670010

African (AFR)

AF:

0.00

AC:

AN:

30256

American (AMR)

AF:

0.00

AC:

AN:

29042

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

19956

East Asian (EAS)

AF:

0.00

AC:

AN:

38970

South Asian (SAS)

AF:

0.00

AC:

AN:

67590

European-Finnish (FIN)

AF:

0.00

AC:

AN:

49750

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5310

European-Non Finnish (NFE)

AF:

0.00

AC:

AN:

1069464

Other (OTH)

AF:

0.00

AC:

AN:

56286

GnomAD4 genome

AF:

0.00000659

AC:

AN:

151782

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74054

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41348

American (AMR)

AF:

0.00

AC:

AN:

15190

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3468

East Asian (EAS)

AF:

0.00

AC:

AN:

5130

South Asian (SAS)

AF:

0.00

AC:

AN:

4816

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10532

Middle Eastern (MID)

AF:

0.00

AC:

AN:

316

European-Non Finnish (NFE)

AF:

0.0000147

AC:

AN:

67982

Other (OTH)

AF:

0.00

AC:

AN:

2088

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.525

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.23

BayesDel_addAF

Pathogenic

0.17

BayesDel_noAF

Uncertain

0.0

CADD

Uncertain

(source)

DANN

Uncertain

0.98

DEOGEN2

Benign

0.35

.;T;.;.;T;.

Eigen

Benign

0.15

Eigen_PC

Uncertain

0.38

FATHMM_MKL

Pathogenic

1.0

LIST_S2

Benign

0.77

T;.;T;T;T;T

M_CAP

Benign

0.033

MetaRNN

Benign

0.39

T;T;T;T;T;T

MetaSVM

Uncertain

0.22

MutationAssessor

Benign

1.4

.;L;.;.;L;L

PhyloP100

PrimateAI

Uncertain

0.52

PROVEAN

Benign

-1.5

N;.;.;.;.;N

REVEL

Uncertain

0.42

Sift

Uncertain

0.0010

D;.;.;.;.;D

Sift4G

Benign

0.30

T;T;.;.;.;T

Vest4

0.27

MutPred

0.38

Gain of ubiquitination at T966 (P = 0.0054);.;Gain of ubiquitination at T966 (P = 0.0054);Gain of ubiquitination at T966 (P = 0.0054);.;.;

MVP

0.88

MPC

0.18

ClinPred

0.95

GERP RS

5.4

Varity_R

0.48

gMVP

0.51

Mutation Taster

=11/89

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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chr2-166272820-G-T

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over