dbSNP rs534723946: SETX:p.Arg502Trp (chr9-132330094-G-A) – ACMG Classification: Benign (-13 pts)

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_015046.7(SETX):c.1504C>T(p.Arg502Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000258 in 1,614,192 control chromosomes in the GnomAD database, including 4 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R502Q) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.00029 ( 1 hom., cov: 33)

Exomes 𝑓: 0.00025 ( 3 hom. )

Consequence

SETX
NM_015046.7 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications P:1U:6B:2

Conservation

PhyloP100: 1.97

Publications

6 publications found

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 Gene-Disease associations (from GenCC):

amyotrophic lateral sclerosis type 4
Inheritance: AD Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Ambry Genetics, Orphanet, Labcorp Genetics (formerly Invitae)
distal hereditary motor neuropathy
Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 2
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: Labcorp Genetics (formerly Invitae), Ambry Genetics, Orphanet

SETX links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.012727529).

BP6

Variant 9-132330094-G-A is Benign according to our data. Variant chr9-132330094-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 155742.

BS1

Variant frequency is greater than expected in population sas. GnomAd4 allele frequency = 0.000289 (44/152344) while in subpopulation SAS AF = 0.00621 (30/4830). AF 95% confidence interval is 0.00447. There are 1 homozygotes in GnomAd4. There are 29 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAdExome4 at 3 AR,AD gene

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_015046.7. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SETX	NM_015046.7	MANE Select	c.1504C>T	p.Arg502Trp	missense	Exon 10 of 26	NP_055861.3
SETX	NM_001351528.2		c.1504C>T	p.Arg502Trp	missense	Exon 10 of 27	NP_001338457.1
SETX	NM_001351527.2		c.1504C>T	p.Arg502Trp	missense	Exon 10 of 26	NP_001338456.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
SETX	ENST00000224140.6	TSL:1 MANE Select	c.1504C>T	p.Arg502Trp	missense	Exon 10 of 26	ENSP00000224140.5
SETX	ENST00000923216.1		c.1504C>T	p.Arg502Trp	missense	Exon 10 of 28	ENSP00000593275.1
SETX	ENST00000923217.1		c.1504C>T	p.Arg502Trp	missense	Exon 10 of 27	ENSP00000593276.1

Frequencies

GnomAD3 genomes

AF:

0.000289

AC:

AN:

152226

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000965

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000262

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000769

Gnomad SAS

AF:

0.00621

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.000541

AC:

136

AN:

251320

AF XY:

0.000648

show subpopulations

Gnomad AFR exome

AF:

0.0000615

Gnomad AMR exome

AF:

0.0000578

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000652

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000704

Gnomad OTH exome

AF:

0.000816

GnomAD4 exome

AF:

0.000254

AC:

372

AN:

1461848

Hom.:

Cov.:

AF XY:

0.000326

AC XY:

237

AN XY:

727216

show subpopulations

African (AFR)

AF:

0.000119

AC:

AN:

33480

American (AMR)

AF:

0.0000447

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.000151

AC:

AN:

39698

South Asian (SAS)

AF:

0.00306

AC:

264

AN:

86256

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53416

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.0000683

AC:

AN:

1111976

Other (OTH)

AF:

0.000331

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.490

Heterozygous variant carriers

112

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

AF:

0.000289

AC:

AN:

152344

Hom.:

Cov.:

AF XY:

0.000389

AC XY:

AN XY:

74500

show subpopulations

African (AFR)

AF:

0.0000962

AC:

AN:

41578

American (AMR)

AF:

0.000261

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000771

AC:

AN:

5188

South Asian (SAS)

AF:

0.00621

AC:

AN:

4830

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10622

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68026

Other (OTH)

AF:

0.00

AC:

AN:

2114

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.515

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

Alfa

AF:

0.0000666

Hom.:

Bravo

AF:

0.0000982

ExAC

AF:

0.000675

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

EpiCase

AF:

0.0000545

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions as Germline

Significance:Conflicting classifications of pathogenicity

Revision:criteria provided, conflicting classifications

View on ClinVar

Pathogenic

VUS

Benign

Condition

not provided (4)

Amyotrophic lateral sclerosis type 4 (2)

Charcot-Marie-Tooth disease (1)

Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 2 (1)

Spinocerebellar ataxia, autosomal recessive, with axonal neuropathy 2;C1865409:Amyotrophic lateral sclerosis type 4 (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.20

BayesDel_addAF

Benign

-0.13

BayesDel_noAF

Uncertain

0.040

CADD

Pathogenic

(source)

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.36

Eigen

Uncertain

0.43

Eigen_PC

Uncertain

0.43

FATHMM_MKL

Uncertain

0.93

LIST_S2

Uncertain

0.91

M_CAP

Pathogenic

0.43

MetaRNN

Benign

0.013

MetaSVM

Uncertain

0.35

MutationAssessor

Benign

1.0

PhyloP100

2.0

PrimateAI

Benign

0.42

PROVEAN

Uncertain

-2.4

REVEL

Pathogenic

0.80

Sift

Pathogenic

0.0

Sift4G

Uncertain

0.0080

Polyphen

1.0

Vest4

0.61

MutPred

0.43

Loss of disorder (P = 0.0273)

MVP

0.86

MPC

0.44

ClinPred

0.79

GERP RS

3.9

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.12

gMVP

0.25

Mutation Taster

=9/91

disease causing

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over