chr9-132327630-C-T

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong

The NM_015046.7(SETX):​c.3968G>A​(p.Arg1323Gln) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000483 in 1,613,716 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000050 ( 0 hom. )

Consequence

SETX
NM_015046.7 missense

Scores

19

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:6B:1

Conservation

PhyloP100: -0.0700
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]

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ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.025814265).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SETXNM_015046.7 linkuse as main transcriptc.3968G>A p.Arg1323Gln 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.3968G>A p.Arg1323Gln missense_variant 10/261 NM_015046.7 ENSP00000224140 P1Q7Z333-1

Frequencies

GnomAD3 genomes
AF:
0.0000329
AC:
5
AN:
152070
Hom.:
0
Cov.:
32
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:
0.000578
Gnomad SAS
AF:
0.00
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000147
Gnomad OTH
AF:
0.000478
GnomAD3 exomes
AF:
0.0000438
AC:
11
AN:
251070
Hom.:
0
AF XY:
0.0000442
AC XY:
6
AN XY:
135744
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.00
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.000163
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000440
Gnomad OTH exome
AF:
0.000490
GnomAD4 exome
AF:
0.0000499
AC:
73
AN:
1461646
Hom.:
0
Cov.:
65
AF XY:
0.0000536
AC XY:
39
AN XY:
727152
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000756
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000549
Gnomad4 OTH exome
AF:
0.000149
GnomAD4 genome
AF:
0.0000329
AC:
5
AN:
152070
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74278
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.000578
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.000478
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.0000264
ExAC
AF:
0.0000577
AC:
7
Asia WGS
AF:
0.00144
AC:
5
AN:
3478
EpiCase
AF:
0.00
EpiControl
AF:
0.0000593

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:6Benign:1
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:1Benign:1
Benign, no assertion criteria providedliterature onlyNorthcott Neuroscience Laboratory, ANZAC Research Institute-- -
Uncertain significance, criteria provided, single submitterclinical testingRevvity Omics, RevvityMay 12, 2022- -
not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAthena DiagnosticsDec 16, 2016- -
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsOct 20, 2023The c.3968G>A (p.R1323Q) alteration is located in exon 10 (coding exon 8) of the SETX gene. This alteration results from a G to A substitution at nucleotide position 3968, causing the arginine (R) at amino acid position 1323 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Amyotrophic lateral sclerosis type 4 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabFeb 08, 2023- -
SETX-related disorder Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesJun 23, 2023The SETX c.3968G>A variant is predicted to result in the amino acid substitution p.Arg1323Gln. To our knowledge, this variant has not been reported in the literature. This variant is reported in 0.025% of alleles in individuals of East Asian descent in gnomAD (http://gnomad.broadinstitute.org/variant/9-135203017-C-T). At this time, the clinical significance of this variant is uncertain due to the absence of conclusive functional and genetic evidence. -
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
0.087
BayesDel_addAF
Benign
-0.33
T
BayesDel_noAF
Benign
-0.44
CADD
Benign
5.0
DANN
Benign
0.79
DEOGEN2
Benign
0.091
T
Eigen
Benign
-1.4
Eigen_PC
Benign
-1.5
FATHMM_MKL
Benign
0.089
N
LIST_S2
Benign
0.72
T
M_CAP
Benign
0.042
D
MetaRNN
Benign
0.026
T
MetaSVM
Benign
-0.74
T
MutationAssessor
Benign
0.36
N
MutationTaster
Benign
1.0
N;N;N
PrimateAI
Benign
0.21
T
PROVEAN
Benign
-0.010
N
REVEL
Benign
0.17
Sift
Benign
0.28
T
Sift4G
Benign
0.63
T
Polyphen
0.021
B
Vest4
0.051
MutPred
0.23
Loss of MoRF binding (P = 0.0275);
MVP
0.40
MPC
0.085
ClinPred
0.013
T
GERP RS
-5.6
Varity_R
0.020
gMVP
0.057

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: rs369542231; hg19: chr9-135203017; COSMIC: COSV99809660; API