Variant 14-92070979-C-T details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Benign. Variant got -8 ACMG points: 0P and 8B. BP4_StrongBS2

The NM_004993.6(ATXN3):c.947G>A(p.Cys316Tyr) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000728 in 1,236,132 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 14/20 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000094 ( 0 hom., cov: 0)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

ATXN3
NM_004993.6 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.256

Variant links:

Genes affected

ATXN3 (HGNC:7106): (ataxin 3) Machado-Joseph disease, also known as spinocerebellar ataxia-3, is an autosomal dominant neurologic disorder. The protein encoded by this gene contains (CAG)n repeats in the coding region, and the expansion of these repeats from the normal 12-44 to 52-86 is one cause of Machado-Joseph disease. There is a negative correlation between the age of onset and CAG repeat numbers. Alternatively spliced transcript variants encoding different isoforms have been described for this gene. [provided by RefSeq, Jul 2016]

ATXN3 links:

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -8 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.035816103).

BS2

High AC in GnomAd at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
ATXN3	NM_004993.6 linkuse as main transcript	c.947G>A	p.Cys316Tyr	missense_variant	10/11	ENST00000644486.2

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
ATXN3	ENST00000644486.2 linkuse as main transcript	c.947G>A	p.Cys316Tyr	missense_variant	10/11		NM_004993.6	P1	P54252-2

Frequencies

GnomAD3 genomes

AF:

0.0000941

AC:

AN:

53110

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00104

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:

0.00

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.00000503

AC:

AN:

198912

Hom.:

AF XY:

0.00000910

AC XY:

AN XY:

109878

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:

0.00

Gnomad OTH exome

AF:

0.000221

GnomAD4 exome

AF:

0.00000338

AC:

AN:

1183022

Hom.:

Cov.:

AF XY:

0.00000345

AC XY:

AN XY:

580468

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000948

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:

0.00

Gnomad4 OTH exome

AF:

0.0000227

GnomAD4 genome

AF:

0.0000941

AC:

AN:

53110

Hom.:

Cov.:

AF XY:

0.000154

AC XY:

AN XY:

26014

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00104

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.00

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000642

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Inborn genetic diseases

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jun 21, 2022

The c.947G>A (p.C316Y) alteration is located in exon 10 (coding exon 10) of the ATXN3 gene. This alteration results from a G to A substitution at nucleotide position 947, causing the cysteine (C) at amino acid position 316 to be replaced by a tyrosine (Y). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.081

BayesDel_addAF

Benign

-0.19

BayesDel_noAF

Benign

-0.51

Cadd

Benign

Dann

Benign

0.52

DEOGEN2

Benign

0.059

T;T;.;.;T;.;.;.;.;.;T;T;T;T

Eigen

Benign

-0.95

Eigen_PC

Benign

-0.97

FATHMM_MKL

Benign

0.029

M_CAP

Benign

0.0077

MetaRNN

Benign

0.036

T;T;T;T;T;T;T;T;T;T;T;T;T;T

MetaSVM

Benign

-0.97

MutationTaster

Benign

1.0

N;N;N;N;N;N;N

PrimateAI

Benign

0.25

Polyphen

0.097

B;.;.;.;B;.;.;B;.;.;.;.;.;.

Vest4

0.40, 0.37, 0.39, 0.39, 0.41, 0.40, 0.40, 0.30

MutPred

0.25

Gain of catalytic residue at C316 (P = 0.0085);.;.;.;Gain of catalytic residue at C316 (P = 0.0085);.;.;.;Gain of catalytic residue at C316 (P = 0.0085);.;.;.;.;.;

MVP

0.54

MPC

0.37

ClinPred

0.12

GERP RS

2.0

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Varity_R

0.10

gMVP

0.086

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.

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