Genetic Variant DTX2:p.Arg86Cys (chr7-76480765-C-T) – ACMG Classification: Likely_benign (-4 pts)

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_001102594.3(DTX2):c.256C>T(p.Arg86Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000523 in 1,604,742 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 31)

Exomes 𝑓: 0.000054 ( 0 hom. )

Consequence

DTX2
NM_001102594.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 3.58

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DTX2	NM_001102594.3 link	c.256C>T	p.Arg86Cys	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.256C>T	p.Arg86Cys	missense_variant	Exon 3 of 11	1	NM_001102594.3	ENSP00000411986.2		Q86UW9-1

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152236

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000482

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.000192

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.000156

AC:

AN:

237154

Hom.:

AF XY:

0.0000773

AC XY:

AN XY:

129414

show subpopulations

Gnomad AFR exome

AF:

0.0000673

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.000501

Gnomad SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.000144

Gnomad NFE exome

AF:

0.000226

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.0000544

AC:

AN:

1452388

Hom.:

Cov.:

AF XY:

0.0000471

AC XY:

AN XY:

721666

show subpopulations

Gnomad4 AFR exome

AF:

0.0000603

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.000202

Gnomad4 SAS exome

AF:

0.0000819

Gnomad4 FIN exome

AF:

0.000113

Gnomad4 NFE exome

AF:

0.0000434

Gnomad4 OTH exome

AF:

0.000117

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152354

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

74502

show subpopulations

Gnomad4 AFR

AF:

0.0000481

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.000193

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000294

Gnomad4 OTH

AF:

0.00

Alfa

AF:

0.0000275

Hom.:

Bravo

AF:

0.0000604

ESP6500AA

AF:

0.00

AC:

ESP6500EA

AF:

0.000116

AC:

ExAC

AF:

0.000231

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Jun 05, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.256C>T (p.R86C) alteration is located in exon 4 (coding exon 1) of the DTX2 gene. This alteration results from a C to T substitution at nucleotide position 256, causing the arginine (R) at amino acid position 86 to be replaced by a cysteine (C). 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

Uncertain

0.49

BayesDel_addAF

Uncertain

0.019

BayesDel_noAF

Uncertain

0.13

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Benign

0.36

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

Eigen

Pathogenic

0.69

Eigen_PC

Pathogenic

0.67

FATHMM_MKL

Uncertain

0.96

LIST_S2

Pathogenic

1.0

.;.;D;.;D;D;D;D

M_CAP

Uncertain

0.10

MetaRNN

Uncertain

0.69

D;D;D;D;D;D;D;D

MetaSVM

Benign

-0.55

MutationAssessor

Uncertain

2.5

M;M;.;.;M;.;.;M

PrimateAI

Pathogenic

0.87

PROVEAN

Pathogenic

-6.4

D;D;D;D;D;D;D;D

REVEL

Uncertain

0.42

Sift

Uncertain

0.0030

D;D;D;D;D;D;D;D

Sift4G

Pathogenic

0.0010

D;D;D;D;D;D;D;D

Polyphen

1.0

D;D;.;.;D;.;.;D

Vest4

0.94

MVP

0.84

MPC

1.1

ClinPred

0.46

GERP RS

5.5

Varity_R

0.59

gMVP

0.73

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