rs763545230

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.

The NM_015046.7(SETX):​c.1468G>A​(p.Val490Ile) variant causes a missense change. The variant allele was found at a frequency of 0.0000279 in 1,612,566 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000046 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000026 ( 0 hom. )

Consequence

SETX
NM_015046.7 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:8

Conservation

PhyloP100: 6.30
Variant links:
Genes affected
SETX (HGNC:445): (senataxin) This gene encodes a protein named for its homology to the Sen1p protein of fungi which has RNA helicase activity encoded by a domain at the C-terminal end of the protein. The protein encoded by this gene contains a DNA/RNA helicase domain at its C-terminal end which suggests that it may be involved in both DNA and RNA processing. Mutations in this gene have been associated with ataxia-ocular apraxia-2 (AOA2) and an autosomal dominant form of juvenile amyotrophic lateral sclerosis (ALS4). [provided by RefSeq, Jul 2008]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SETXNM_015046.7 linkuse as main transcriptc.1468G>A p.Val490Ile missense_variant 10/26 ENST00000224140.6 NP_055861.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
SETXENST00000224140.6 linkuse as main transcriptc.1468G>A p.Val490Ile missense_variant 10/261 NM_015046.7 ENSP00000224140 P1Q7Z333-1

Frequencies

GnomAD3 genomes
AF:
0.0000460
AC:
7
AN:
152262
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000241
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000196
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:
0.0000441
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000279
AC:
7
AN:
250872
Hom.:
0
AF XY:
0.0000148
AC XY:
2
AN XY:
135580
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 SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000617
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000260
AC:
38
AN:
1460304
Hom.:
0
Cov.:
35
AF XY:
0.0000248
AC XY:
18
AN XY:
726124
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.0000224
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000116
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000315
Gnomad4 OTH exome
AF:
0.0000166
GnomAD4 genome
AF:
0.0000460
AC:
7
AN:
152262
Hom.:
0
Cov.:
33
AF XY:
0.0000403
AC XY:
3
AN XY:
74388
show subpopulations
Gnomad4 AFR
AF:
0.0000241
Gnomad4 AMR
AF:
0.000196
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000441
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000450
Hom.:
0
Bravo
AF:
0.0000642
TwinsUK
AF:
0.000270
AC:
1
ALSPAC
AF:
0.00
AC:
0
ExAC
AF:
0.0000247
AC:
3
EpiCase
AF:
0.0000545
EpiControl
AF:
0.000178

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:8
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:3
Uncertain significance, criteria provided, single submitterclinical testingCeGaT Center for Human Genetics TuebingenJun 01, 2016- -
Uncertain significance, criteria provided, single submitterclinical testingAthena DiagnosticsFeb 14, 2018- -
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJul 05, 2022Reported previously as a variant of uncertain significance in a patient with axonal nerve conduction study findings, ataxia, dysarthria, and nystagmus; however, no segregation information was provided (Hartley et al., 2018); In silico analysis supports that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 28708278) -
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsJul 14, 2021The p.V490I variant (also known as c.1468G>A), located in coding exon 8 of the SETX gene, results from a G to A substitution at nucleotide position 1468. The valine at codon 490 is replaced by isoleucine, an amino acid with highly similar properties. This variant was detected in an individual with hereditary sensory neuropathy; however, clinical details were limited (Hartley T et al. Clin Genet, 2018 02;93:301-309). This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Based on the supporting evidence, this variant is unlikely to be causative of amyotrophic lateral sclerosis 4 (ALS4); however, its contribution to the development of spinocerebellar ataxia with axonal neuropathy 2 (SCAN2) is uncertain. -
Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 2;C1865409:Amyotrophic lateral sclerosis type 4 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingLabcorp Genetics (formerly Invitae), LabcorpJan 02, 2022In 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 are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Tolerated"; PolyPhen-2: "Probably Damaging"; Align-GVGD: "Class C0"). ClinVar contains an entry for this variant (Variation ID: 577511). This missense change has been observed in individual(s) with hereditary sensory neuropathy (PMID: 28708278). This variant is present in population databases (rs763545230, gnomAD 0.006%). This sequence change replaces valine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 490 of the SETX protein (p.Val490Ile). -
Amyotrophic lateral sclerosis type 4 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabFeb 08, 2023- -
Spastic ataxia Uncertain:1
Uncertain significance, criteria provided, single submitterresearchMolecular Medicine for Neurodegenerative and Neuromuscular Diseases Unit, IRCCS Fondazione Stella MarisJan 04, 2021- -
Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 2 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabFeb 08, 2023- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.20
BayesDel_addAF
Benign
-0.061
T
BayesDel_noAF
Benign
-0.15
CADD
Uncertain
24
DANN
Uncertain
1.0
DEOGEN2
Benign
0.40
T
Eigen
Uncertain
0.53
Eigen_PC
Uncertain
0.50
FATHMM_MKL
Pathogenic
0.99
D
LIST_S2
Uncertain
0.89
D
M_CAP
Uncertain
0.12
D
MetaRNN
Uncertain
0.47
T
MetaSVM
Uncertain
0.46
D
MutationAssessor
Benign
1.0
L
MutationTaster
Benign
0.96
D;D;D
PrimateAI
Benign
0.44
T
PROVEAN
Benign
-0.39
N
REVEL
Uncertain
0.40
Sift
Pathogenic
0.0
D
Sift4G
Pathogenic
0.0
D
Polyphen
1.0
D
Vest4
0.36
MutPred
0.22
Gain of catalytic residue at L495 (P = 0.0364);
MVP
0.76
MPC
0.39
ClinPred
0.37
T
GERP RS
5.8
Varity_R
0.10
gMVP
0.33

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs763545230; hg19: chr9-135205517; COSMIC: COSV56387265; API