chr9-132330165-AGCAAAT-A

Variant summary

Our verdict is Uncertain significance. Variant got 2 ACMG points: 2P and 0B. PM4

The NM_015046.7(SETX):​c.1427_1432del​(p.His476_Leu477del) variant causes a inframe deletion change. The variant allele was found at a frequency of 0.0000207 in 1,596,630 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (β˜…β˜…).

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000022 ( 0 hom. )

Consequence

SETX
NM_015046.7 inframe_deletion

Scores

Not classified

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:7

Conservation

PhyloP100: 5.60
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 2 ACMG points.

PM4
Nonframeshift variant in NON repetitive region in NM_015046.7.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
SETXNM_015046.7 linkuse as main transcriptc.1427_1432del p.His476_Leu477del inframe_deletion 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.1427_1432del p.His476_Leu477del inframe_deletion 10/261 NM_015046.7 ENSP00000224140 P1Q7Z333-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152262
Hom.:
0
Cov.:
33
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
GnomAD3 exomes
AF:
0.0000125
AC:
3
AN:
240746
Hom.:
0
AF XY:
0.0000231
AC XY:
3
AN XY:
130084
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:
0.0000182
Gnomad OTH exome
AF:
0.000172
GnomAD4 exome
AF:
0.0000222
AC:
32
AN:
1444368
Hom.:
0
AF XY:
0.0000154
AC XY:
11
AN XY:
716158
show subpopulations
Gnomad4 AFR exome
AF:
0.0000305
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000281
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152262
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74384
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000147
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000508
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:7
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

not provided Uncertain:3
Uncertain significance, criteria provided, single submitterclinical testingGeneDxJul 30, 2019In-frame deletion of 2 amino acids in a non-repeat region; In silico analysis, which includes protein predictors and evolutionary conservation, supports a deleterious effect; Has not been previously published as pathogenic or benign to our knowledge -
Uncertain significance, criteria provided, single submitterclinical testingAthena DiagnosticsJan 27, 2023Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is uninformative in assessment of its pathogenicity (http://gnomad.broadinstitute.org). Computational tools yielded predictions that this variant is unlikely to have an effect on normal RNA splicing. -
Uncertain significance, criteria provided, single submitterclinical testingARUP Laboratories, Molecular Genetics and Genomics, ARUP LaboratoriesApr 24, 2020The SETX c.1427_1432del; p.His476_Leu477del variant (rs777314512), to our knowledge, is not reported in the medical literature but is reported in ClinVar (Variation ID: 448305). This variant is found in the population with an overall allele frequency of 0.001 % (4/ 272,150 alleles) in the Genome Aggregation Database. This variant deletes a two residue leaving the rest of the protein in-frame. Due to limited information, the clinical significance of the p.His476_Leu477del variant is uncertain at this time. -
Inborn genetic diseases Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsMay 15, 2023The c.1427_1432delATTTGC (p.H476_L477del) alteration is located in exon 10 (coding exon 8) of the SETX gene. This alteration consists of an in-frame deletion of 6 nucleotides between nucleotide positions c.1427 and c.1432, resulting in the deletion of 2 residues. Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
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), LabcorpJul 19, 2019This variant, c.1427_1432del, results in the deletion of 2 amino acid(s) of the SETX protein (p.His476_Leu477del), but otherwise preserves the integrity of the reading frame. 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. Experimental studies and prediction algorithms are not available or were not evaluated for this variant, and the functional significance of the affected amino acid(s) is currently unknown. This variant has not been reported in the literature in individuals with SETX-related conditions. This variant is present in population databases (rs777314512, ExAC 0.005%). -
Amyotrophic lateral sclerosis type 4 Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingGenome-Nilou LabFeb 08, 2023- -
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

Splicing

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: rs777314512; hg19: chr9-135205552; API