Genetic Variant DTX2:p.Arg174His (chr7-76482760-G-A) – ACMG Classification: Uncertain_significance (0 pts)

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PP3_StrongBS2

The NM_001102594.3(DTX2):c.521G>A(p.Arg174His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000144 in 1,461,592 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R174C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

DTX2
NM_001102594.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 9.49

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 Uncertain_significance. Variant got 0 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.974

BS2

High AC in GnomAdExome4 at 21 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DTX2	NM_001102594.3 link	c.521G>A	p.Arg174His	missense_variant	Exon 4 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.521G>A	p.Arg174His	missense_variant	Exon 4 of 11	1	NM_001102594.3	ENSP00000411986.2		Q86UW9-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

AF:

0.0000144

AC:

AN:

1461592

Hom.:

Cov.:

AF XY:

0.0000179

AC XY:

AN XY:

727106

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.0000189

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

Bravo

AF:

0.00000378

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Dec 17, 2023

Ambry Genetics

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

The c.521G>A (p.R174H) alteration is located in exon 5 (coding exon 2) of the DTX2 gene. This alteration results from a G to A substitution at nucleotide position 521, causing the arginine (R) at amino acid position 174 to be replaced by a histidine (H). 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

0.24

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.30

CADD

Pathogenic

DANN

Pathogenic

1.0

DEOGEN2

Uncertain

0.49

T;.;T;T;.

Eigen

Pathogenic

0.85

Eigen_PC

Pathogenic

0.80

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.93

.;D;.;D;D

M_CAP

Uncertain

0.11

MetaRNN

Pathogenic

0.97

D;D;D;D;D

MetaSVM

Uncertain

0.059

MutationAssessor

Uncertain

2.6

M;.;M;M;M

PrimateAI

Uncertain

0.58

PROVEAN

Uncertain

-3.6

D;D;D;D;D

REVEL

Pathogenic

0.75

Sift

Uncertain

0.0010

D;D;D;D;D

Sift4G

Uncertain

0.011

D;D;D;D;D

Polyphen

1.0

D;.;D;D;D

Vest4

0.93

MutPred

0.89

Loss of MoRF binding (P = 0.0262);.;Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);Loss of MoRF binding (P = 0.0262);

MVP

0.93

MPC

1.1

ClinPred

1.0

GERP RS

5.4

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.49

gMVP

0.86

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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