chr3-38945434-G-T
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_001349253.2(SCN11A):c.465C>A(p.Asn155Lys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000683 in 1,610,352 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 17/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_001349253.2 missense
Scores
Clinical Significance
Conservation
Publications
- autosomal dominant hereditary sensory and autonomic neuropathyInheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
- familial episodic pain syndrome with predominantly lower limb involvementInheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
- hereditary sensory and autonomic neuropathy type 7Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Labcorp Genetics (formerly Invitae), Orphanet
- sodium channelopathy-related small fiber neuropathyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
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ACMG classification
Our verdict: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| SCN11A | NM_001349253.2 | c.465C>A | p.Asn155Lys | missense_variant | Exon 7 of 30 | ENST00000302328.9 | NP_001336182.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152224Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.00000403 AC: 1AN: 248190 AF XY: 0.00000744 show subpopulations
GnomAD4 exome AF: 0.00000686 AC: 10AN: 1458128Hom.: 0 Cov.: 29 AF XY: 0.00000414 AC XY: 3AN XY: 724908 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152224Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74382 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:1
- -
Hereditary sensory and autonomic neuropathy type 7;C3809899:Familial episodic pain syndrome with predominantly lower limb involvement Uncertain:1
In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 474731). This missense change has been observed in individual(s) with clinical features of SCN11A-related conditions (Invitae). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This sequence change replaces asparagine, which is neutral and polar, with lysine, which is basic and polar, at codon 155 of the SCN11A protein (p.Asn155Lys). -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at