Genetic Variant DTX2:p.Ala17Val (chr7-76480559-C-T) – ACMG Classification: Benign (-8 pts)

Variant summary

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

The NM_001102594.3(DTX2):c.50C>T(p.Ala17Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000167 in 1,612,282 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 32)

Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

DTX2
NM_001102594.3 missense

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.857

Variant links:

Genes affected

DTX2 (HGNC:15973): (deltex E3 ubiquitin ligase 2) DTX2 functions as an E3 ubiquitin ligase (Takeyama et al., 2003 [PubMed 12670957]).[supplied by OMIM, Nov 2009]

DTX2 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=0.055288225).

BS2

High AC in GnomAdExome4 at 25 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DTX2	NM_001102594.3 link	c.50C>T	p.Ala17Val	missense_variant	Exon 3 of 11	ENST00000430490.7	NP_001096064.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DTX2	ENST00000430490.7 link	c.50C>T	p.Ala17Val	missense_variant	Exon 3 of 11	1	NM_001102594.3	ENSP00000411986.2		Q86UW9-1

Frequencies

GnomAD3 genomes

AF:

0.0000131

AC:

AN:

152182

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

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:

0.0000201

AC:

AN:

249054

Hom.:

AF XY:

0.00

AC XY:

AN XY:

135166

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.0000290

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.0000545

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000267

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000171

AC:

AN:

1460100

Hom.:

Cov.:

AF XY:

0.0000165

AC XY:

AN XY:

726370

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.0000224

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:

0.0000207

Gnomad4 OTH exome

AF:

0.0000166

GnomAD4 genome

AF:

0.0000131

AC:

AN:

152182

Hom.:

Cov.:

AF XY:

0.0000135

AC XY:

AN XY:

74338

show subpopulations

Gnomad4 AFR

AF:

0.0000241

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:

0.000125

Hom.:

Bravo

AF:

0.0000189

ExAC

AF:

0.0000247

AC:

EpiCase

AF:

0.00

EpiControl

AF:

0.0000593

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Benign:1

Feb 28, 2025

Ambry Genetics

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.055

BayesDel_addAF

Benign

-0.25

BayesDel_noAF

Benign

-0.52

CADD

Benign

DANN

Benign

0.78

DEOGEN2

Benign

0.094

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

Eigen

Benign

-1.2

Eigen_PC

Benign

-1.1

FATHMM_MKL

Benign

0.044

LIST_S2

Benign

0.14

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

M_CAP

Benign

0.0046

MetaRNN

Benign

0.055

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

MetaSVM

Benign

-1.0

MutationAssessor

Benign

-0.13

.;.;.;N;.;N;.;.;N;.;.;N

PrimateAI

Benign

0.42

PROVEAN

Benign

1.1

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

REVEL

Benign

0.10

Sift

Benign

1.0

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

Sift4G

Benign

0.32

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

Polyphen

0.0020, 0.0010

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

Vest4

0.090, 0.092, 0.11

MutPred

0.54

Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);Gain of catalytic residue at A17 (P = 0.1381);

MVP

0.38

MPC

0.28

ClinPred

0.047

GERP RS

4.0

Varity_R

0.025

gMVP

0.13

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

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