chr3-38728733-G-C

Variant names:

• chr3-38728733-G-C
• rs763084100
• NM_006514.4:c.2449C>G

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_006514.4(SCN10A):​c.2449C>G​(p.Arg817Gly) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,104 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R817Q) has been classified as Likely benign.

• Frequency: Genomes: 𝑓 0.0000066 (0 hom., cov: 32)
• Consequence: SCN10A NM_006514.4 missense
• Clinical Significance: Uncertain significance criteria provided, single submitter U:1
• Conservation: PhyloP100: -0.135
• Publications: 4 publications found

Genes affected

SCN10A (HGNC:10582): (sodium voltage-gated channel alpha subunit 10) The protein encoded by this gene is a tetrodotoxin-resistant voltage-gated sodium channel alpha subunit. The properties of the channel formed by the encoded transmembrane protein can be altered by interaction with different beta subunits. This protein may be involved in the onset of pain associated with peripheral neuropathy. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jun 2014]

SCN10A Gene-Disease associations (from GenCC):

• sodium channelopathy-related small fiber neuropathy

  Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
• episodic pain syndrome, familial, 2

  Inheritance: AD Classification: LIMITED, NO_KNOWN Submitted by: Labcorp Genetics (formerly Invitae), Illumina, Ambry Genetics
• Brugada syndrome

  Inheritance: Unknown Classification: LIMITED Submitted by: Genomics England PanelApp
• Brugada syndrome 1

  Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

ACMG classification

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.11205119).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_006514.4. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SCN10A	NM_006514.4	MANE Select	c.2449C>G	p.Arg817Gly	missense	Exon 16 of 28	NP_006505.4
	SCN10A	NM_001293306.2		c.2449C>G	p.Arg817Gly	missense	Exon 15 of 27	NP_001280235.2
	SCN10A	NM_001293307.2		c.2155C>G	p.Arg719Gly	missense	Exon 14 of 26	NP_001280236.2

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	SCN10A	ENST00000449082.3	TSL:1 MANE Select	c.2449C>G	p.Arg817Gly	missense	Exon 16 of 28	ENSP00000390600.2
	SCN10A	ENST00000643924.1		c.2449C>G	p.Arg817Gly	missense	Exon 15 of 27	ENSP00000495595.1
	SCN10A	ENST00000655275.1		c.2476C>G	p.Arg826Gly	missense	Exon 16 of 28	ENSP00000499510.1

Frequencies

GnomAD3 genomes AF: 0.00000657 AC: 1 AN: 152104 Hom.: 0 Cov.: 32

Gnomad AFR AF: 0.0000241

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: 0.00

Gnomad OTH AF: 0.00

GnomAD4 exome Cov.: 31

GnomAD4 genome AF: 0.00000657 AC: 1 AN: 152104 Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0 AN XY: 74288

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5.

African (AFR) AF: 0.0000241 AC: 1 AN: 41422

American (AMR) AF: 0.00 AC: 0 AN: 15278

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 3470

East Asian (EAS) AF: 0.00 AC: 0 AN: 5192

South Asian (SAS) AF: 0.00 AC: 0 AN: 4824

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 10600

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 316

European-Non Finnish (NFE) AF: 0.00 AC: 0 AN: 68000

Other (OTH) AF: 0.00 AC: 0 AN: 2092

⚠️ The allele balance in gnomAD version 4 Genomes is significantly skewed from the expected value of 0.5. (p-value = 0), which strongly suggests a high chance of mosaicism in these individuals.

Alfa AF: 0.00 Hom.: 0

Bravo AF: 0.00000378

ClinVar

ClinVar submissions as Germline

Significance: Uncertain significance

Revision: criteria provided, single submitter

Pathogenic	VUS	Benign	Condition
-	1	-	Cardiovascular phenotype (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.27
BayesDel_addAF	Uncertain	0.049	T
BayesDel_noAF	Benign	-0.17
CADD	Benign	3.2
DANN	Benign	0.85
DEOGEN2	Uncertain	0.56	D
Eigen	Benign	-1.2
Eigen_PC	Benign	-1.2
FATHMM_MKL	Benign	0.060	N
LIST_S2	Benign	0.57	T
M_CAP	Uncertain	0.13	D
MetaRNN	Benign	0.11	T
MetaSVM	Uncertain	0.14	D
MutationAssessor	Benign	0.87	L
PhyloP100		-0.14
PrimateAI	Benign	0.30	T
PROVEAN	Benign	-1.7	N
REVEL	Uncertain	0.30
Sift	Benign	0.10	T
Sift4G	Benign	0.25	T
Polyphen		0.0020	B
Vest4		0.26
MutPred		0.45		Loss of stability (P = 0.0135)
MVP		0.41
MPC		0.079
ClinPred		0.031	T
GERP RS		-1.1
Varity_R		0.057
gMVP		0.75
Mutation Taster		=88/12	polymorphism

Splicing

Name	Calibrated prediction	Score	Prediction
SpliceAI score (max)		0.010		Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Other links and lift over

dbSNP: rs763084100; hg19: chr3-38770224;