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GeneBe

9-137307153-G-A

Variant summary

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

The NM_017820.5(EXD3):​c.2428C>T​(p.Arg810Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000017 in 1,591,518 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000017 ( 0 hom. )

Consequence

EXD3
NM_017820.5 missense

Scores

5
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.426
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]

Genome browser will be placed here

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=0.10338205).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EXD3NM_017820.5 linkuse as main transcriptc.2428C>T p.Arg810Trp missense_variant 22/22 ENST00000340951.9

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EXD3ENST00000340951.9 linkuse as main transcriptc.2428C>T p.Arg810Trp missense_variant 22/221 NM_017820.5 P1Q8N9H8-1
EXD3ENST00000491734.6 linkuse as main transcriptc.*1496C>T 3_prime_UTR_variant, NMD_transcript_variant 15/151
EXD3ENST00000487745.5 linkuse as main transcriptn.1756C>T non_coding_transcript_exon_variant 12/122

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152164
Hom.:
0
Cov.:
33
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:
0.000207
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.0000299
AC:
6
AN:
200980
Hom.:
0
AF XY:
0.0000455
AC XY:
5
AN XY:
109882
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:
0.000111
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000347
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000174
AC:
25
AN:
1439236
Hom.:
0
Cov.:
32
AF XY:
0.0000168
AC XY:
12
AN XY:
714246
show subpopulations
Gnomad4 AFR exome
AF:
0.0000606
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000478
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000172
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152282
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74466
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:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.00
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000450
Hom.:
0
Bravo
AF:
0.0000227
ESP6500AA
AF:
0.000251
AC:
1
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.0000168
AC:
2

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 submitterclinical testingAmbry GeneticsJul 13, 2021The c.2428C>T (p.R810W) 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 2428, causing the arginine (R) at amino acid position 810 to be replaced by a tryptophan (W). 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
0.11
BayesDel_addAF
Benign
-0.18
T
BayesDel_noAF
Benign
-0.38
CADD
Benign
15
DANN
Uncertain
0.99
DEOGEN2
Benign
0.036
T
Eigen
Benign
-0.78
Eigen_PC
Benign
-0.96
FATHMM_MKL
Benign
0.070
N
LIST_S2
Benign
0.62
T
M_CAP
Uncertain
0.086
D
MetaRNN
Benign
0.10
T
MetaSVM
Benign
-0.87
T
MutationAssessor
Benign
1.4
L
MutationTaster
Benign
1.0
N;N
PrimateAI
Benign
0.34
T
PROVEAN
Uncertain
-3.1
D
REVEL
Benign
0.18
Sift
Uncertain
0.016
D
Sift4G
Uncertain
0.030
D
Polyphen
0.36
B
Vest4
0.40
MVP
0.20
MPC
0.055
ClinPred
0.28
T
GERP RS
-1.8
Varity_R
0.067
gMVP
0.35

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.

Other links and lift over

dbSNP: rs377386003; hg19: chr9-140201605; API