Variant chr9-132300641-C-A details in Genebe, Genetics Data Aggregator

Variant summary

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

The ENST00000224140.6(SETX):c.5537G>T(p.Arg1846Leu) variant causes a missense change. The variant allele was found at a frequency of 0.00000868 in 1,613,354 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R1846C) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)

Exomes 𝑓: 0.0000089 ( 0 hom. )

Consequence

SETX
ENST00000224140.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.11

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]

SETX links:

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
SETX	NM_015046.7 linkuse as main transcript	c.5537G>T	p.Arg1846Leu	missense_variant	12/26	ENST00000224140.6	NP_055861.3

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
SETX	ENST00000224140.6 linkuse as main transcript	c.5537G>T	p.Arg1846Leu	missense_variant	12/26	1	NM_015046.7	ENSP00000224140	P1	Q7Z333-1
SETX	ENST00000436441.5 linkuse as main transcript	c.263G>T	p.Arg88Leu	missense_variant	2/17	5		ENSP00000409143

Frequencies

GnomAD3 genomes

AF:

0.00000658

AC:

AN:

152056

Hom.:

Cov.:

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

GnomAD4 exome

AF:

0.00000890

AC:

AN:

1461298

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

726988

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.0000117

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.00000658

AC:

AN:

152056

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74246

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

Bravo

AF:

0.0000113

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Amyotrophic lateral sclerosis type 4

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Victorian Clinical Genetics Services, Murdoch Childrens Research Institute

Jul 17, 2023

Based on the classification scheme VCGS_Germline_v1.3.4, this variant is classified as VUS-3C. Following criteria are met: 0102 - Loss of function is a known mechanism of disease in this gene and is associated with spinocerebellar ataxia with axonal neuropathy 2 (MIM#606002). The mechanism for juvenile amyotrophic lateral sclerosis 4 (MIM#602433) has not been established, but both gain of function and dominant negative mechanisms have been speculated. Missense variants have been reported in patients with both conditions (OMIM, PMID: 23129421, 16644229, 30052327). (I) 0108 - This gene is associated with both recessive and dominant disease (OMIM). (I) 0115 - Variants in this gene are known to have variable expressivity. Variable severity and features, as well as age of onset have been reported (GeneReviews, PMID: 22088787). (I) 0200 - Variant is predicted to result in a missense amino acid change from arginine to leucine. (I) 0251 - This variant is heterozygous. (I) 0304 - Variant is present in gnomAD <0.01 (1 heterozygote, 0 homozygotes). (SP) 0309 - An multiple alternative amino acid changes at the same position have been observed in gnomAD (v2: 64 heterozygotes, 0 homozygotes). (I) 0501 - Missense variant consistently predicted to be damaging by multiple in silico tools or highly conserved with a major amino acid change. (SP) 0604 - Variant is not located in an established domain, motif, hotspot or informative constraint region. (I) 0708 - Other missense variants comparable to the one identified in this case have conflicting previous evidence for pathogenicity. The p.(Arg1846His) has been classified as a VUS in ClinVar and reported in an individual with ALS (PMID:25299611), while the p.(Arg1846Cys) variant has been classified as likely benign and benign in ClinVar. (I) 0807 - This variant has no previous evidence of pathogenicity. (I) 0905 - No published segregation evidence has been identified for this variant. (I) 1007 - No published functional evidence has been identified for this variant. (I) 1205 - This variant has been shown to be maternally inherited (by segregation analysis). (I) Legend: (SP) - Supporting pathogenic, (I) - Information, (SB) - Supporting benign -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Pathogenic

0.27

BayesDel_noAF

Pathogenic

0.15

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Benign

0.29

.;T

Eigen

Uncertain

0.55

Eigen_PC

Uncertain

0.56

FATHMM_MKL

Uncertain

0.95

LIST_S2

Benign

0.83

T;T

M_CAP

Pathogenic

0.47

MetaRNN

Uncertain

0.67

D;D

MetaSVM

Uncertain

0.029

MutationAssessor

Uncertain

2.7

.;M

MutationTaster

Benign

1.0

D;D;D

PrimateAI

Benign

0.46

PROVEAN

Benign

-2.1

N;D

REVEL

Uncertain

0.63

Sift

Uncertain

0.0080

D;D

Sift4G

Pathogenic

0.0

D;T

Polyphen

1.0

.;D

Vest4

0.57

MutPred

0.48

.;Loss of methylation at K1843 (P = 0.0329);

MVP

0.90

MPC

0.48

ClinPred

0.98

GERP RS

5.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.22

gMVP

0.69

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

Publications

LitVar

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

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over