Genetic Variant ATXN7L3:p.Thr195Asn (chr17-44195456-G-T) – ACMG Classification: Likely_benign (-6 pts)

Variant summary

Our verdict is Likely benign. Variant got -6 ACMG points: 0P and 6B. BP4_ModerateBS2

The NM_001382309.1(ATXN7L3):c.584C>A(p.Thr195Asn) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000316 in 1,613,982 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 0.000026 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000032 ( 0 hom. )

Consequence

ATXN7L3
NM_001382309.1 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.55

Variant links:

Genes affected

ATXN7L3 (HGNC:25416): (ataxin 7 like 3) Enables nuclear receptor coactivator activity. Involved in histone deubiquitination; histone monoubiquitination; and positive regulation of transcription, DNA-templated. Located in nucleus. Part of DUBm complex and SAGA complex. [provided by Alliance of Genome Resources, Apr 2022]

ATXN7L3 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -6 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.120191306).

BS2

High AC in GnomAdExome4 at 47 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
ATXN7L3	NM_001382309.1 link	c.584C>A	p.Thr195Asn	missense_variant	Exon 9 of 13	ENST00000587097.6	NP_001369238.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
ATXN7L3	ENST00000587097.6 link	c.584C>A	p.Thr195Asn	missense_variant	Exon 9 of 13	5	NM_001382309.1	ENSP00000465614.2		Q14CW9-1K7EKG9

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152132

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:

0.0000943

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.000478

GnomAD3 exomes

AF:

0.0000721

AC:

AN:

249484

Hom.:

AF XY:

0.0000591

AC XY:

AN XY:

135378

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000579

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.0000464

Gnomad NFE exome

AF:

0.000124

Gnomad OTH exome

AF:

0.000165

GnomAD4 exome

AF:

0.0000322

AC:

AN:

1461850

Hom.:

Cov.:

AF XY:

0.0000248

AC XY:

AN XY:

727220

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000447

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.00

Gnomad4 FIN exome

AF:

0.0000187

Gnomad4 NFE exome

AF:

0.0000387

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000263

AC:

AN:

152132

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74312

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:

0.0000943

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.000478

Alfa

AF:

0.0000862

Hom.:

Bravo

AF:

0.0000491

ExAC

AF:

0.0000744

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Feb 06, 2025

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.605C>A (p.T202N) alteration is located in exon 8 (coding exon 8) of the ATXN7L3 gene. This alteration results from a C to A substitution at nucleotide position 605, causing the threonine (T) at amino acid position 202 to be replaced by an asparagine (N). 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

0.087

BayesDel_addAF

Benign

-0.29

BayesDel_noAF

Benign

-0.44

CADD

Benign

DANN

Benign

0.96

DEOGEN2

Benign

0.035

.;T;T

Eigen

Benign

-0.47

Eigen_PC

Benign

-0.29

FATHMM_MKL

Uncertain

0.91

LIST_S2

Uncertain

0.87

D;D;D

M_CAP

Benign

0.0097

MetaRNN

Benign

0.12

T;T;T

MetaSVM

Benign

-1.0

MutationAssessor

Benign

0.23

.;N;.

PrimateAI

Uncertain

0.77

PROVEAN

Benign

-1.1

N;N;.

REVEL

Benign

0.063

Sift

Benign

0.30

T;T;.

Sift4G

Benign

0.46

T;T;T

Polyphen

0.0010

B;B;.

Vest4

0.39

MVP

0.22

MPC

1.1

ClinPred

0.058

GERP RS

3.5

Varity_R

0.057

gMVP

0.61

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