Variant chr9-137306978-G-A details in Genebe, Genetics Data Aggregator

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The NM_017820.5(EXD3):c.2603C>T(p.Ala868Val) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000415 in 1,444,956 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000042 ( 1 hom. )

Consequence

EXD3
NM_017820.5 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.601

Variant links:

Genes affected

EXD3 (HGNC:26023): (exonuclease 3'-5' domain containing 3) Predicted to enable 3'-5' exonuclease activity. Predicted to be involved in nucleic acid phosphodiester bond hydrolysis. [provided by Alliance of Genome Resources, Apr 2022]

EXD3 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.102804065).

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	UniProt
EXD3	NM_017820.5 linkuse as main transcript	c.2603C>T	p.Ala868Val	missense_variant	22/22	ENST00000340951.9

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Appris	UniProt
EXD3	ENST00000340951.9 linkuse as main transcript	c.2603C>T	p.Ala868Val	missense_variant	22/22	1	NM_017820.5	P1	Q8N9H8-1
EXD3	ENST00000491734.6 linkuse as main transcript	c.*1671C>T		3_prime_UTR_variant, NMD_transcript_variant	15/15	1
EXD3	ENST00000487745.5 linkuse as main transcript	n.1931C>T		non_coding_transcript_exon_variant	12/12	2

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000860

AC:

AN:

232428

Hom.:

AF XY:

0.0000157

AC XY:

AN XY:

127018

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:

0.0000699

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000415

AC:

AN:

1444956

Hom.:

Cov.:

AF XY:

0.00000837

AC XY:

AN XY:

717258

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:

0.0000712

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

Cov.:

ExAC

AF:

0.00000830

AC:

Asia WGS

AF:

0.000866

AC:

AN:

3478

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Ambry Genetics

Jan 17, 2024

The c.2603C>T (p.A868V) alteration is located in exon 22 (coding exon 21) of the EXD3 gene. This alteration results from a C to T substitution at nucleotide position 2603, causing the alanine (A) at amino acid position 868 to be replaced by a valine (V). 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

0.088

BayesDel_addAF

Benign

-0.32

BayesDel_noAF

Benign

-0.51

CADD

Benign

0.86

DANN

Benign

0.92

DEOGEN2

Benign

0.0037

Eigen

Benign

-0.69

Eigen_PC

Benign

-0.79

FATHMM_MKL

Benign

0.019

LIST_S2

Benign

0.48

M_CAP

Benign

0.015

MetaRNN

Benign

0.10

MetaSVM

Benign

-0.93

MutationAssessor

Benign

0.90

MutationTaster

Benign

1.0

N;N

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.66

REVEL

Benign

0.14

Sift

Benign

0.85

Sift4G

Benign

1.0

Polyphen

0.95

Vest4

0.075

MutPred

0.18

Loss of relative solvent accessibility (P = 0.0186);

MVP

0.20

MPC

0.053

ClinPred

0.10

GERP RS

2.9

Varity_R

0.024

gMVP

0.12

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