chr14-69209558-C-T

Variant summary

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

The NM_001193360.2(EXD2):​c.88C>T​(p.Arg30Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000213 in 1,550,432 control chromosomes in the GnomAD database, including 1 homozygotes. 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 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000023 ( 1 hom. )

Consequence

EXD2
NM_001193360.2 missense

Scores

3
16

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 0.797
Variant links:
Genes affected
EXD2 (HGNC:20217): (exonuclease 3'-5' domain containing 2) Enables 3'-5' exonuclease activity; metal ion binding activity; and protein homodimerization activity. Involved in nucleic acid metabolic process. Located in intermediate filament cytoskeleton; mitochondrial outer membrane; and site of DNA damage. [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=0.10674223).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE Protein UniProt
EXD2NM_001193360.2 linkuse as main transcriptc.88C>T p.Arg30Cys missense_variant 3/10 ENST00000685843.1 NP_001180289.1 Q9NVH0-1

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Protein Appris UniProt
EXD2ENST00000685843.1 linkuse as main transcriptc.88C>T p.Arg30Cys missense_variant 3/10 NM_001193360.2 ENSP00000510642.1 Q9NVH0-1

Frequencies

GnomAD3 genomes
AF:
0.00000657
AC:
1
AN:
152100
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000242
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD3 exomes
AF:
0.000120
AC:
18
AN:
150180
Hom.:
1
AF XY:
0.000111
AC XY:
9
AN XY:
80768
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000326
Gnomad ASJ exome
AF:
0.000119
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00208
GnomAD4 exome
AF:
0.0000229
AC:
32
AN:
1398332
Hom.:
1
Cov.:
31
AF XY:
0.0000217
AC XY:
15
AN XY:
689686
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000560
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.0000560
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.0000208
Gnomad4 NFE exome
AF:
0.00000556
Gnomad4 OTH exome
AF:
0.0000517
GnomAD4 genome
AF:
0.00000657
AC:
1
AN:
152100
Hom.:
0
Cov.:
32
AF XY:
0.0000135
AC XY:
1
AN XY:
74304
show subpopulations
Gnomad4 AFR
AF:
0.0000242
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:
0.00
Gnomad4 OTH
AF:
0.00
Bravo
AF:
0.0000113

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 GeneticsFeb 27, 2023The c.88C>T (p.R30C) alteration is located in exon 3 (coding exon 1) of the EXD2 gene. This alteration results from a C to T substitution at nucleotide position 88, causing the arginine (R) at amino acid position 30 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
Benign
0.10
BayesDel_addAF
Benign
-0.24
T
BayesDel_noAF
Benign
-0.27
CADD
Uncertain
25
DANN
Uncertain
0.99
DEOGEN2
Benign
0.023
T;T
Eigen
Benign
-0.15
Eigen_PC
Benign
-0.33
FATHMM_MKL
Benign
0.58
D
LIST_S2
Benign
0.65
.;T
M_CAP
Benign
0.028
D
MetaRNN
Benign
0.11
T;T
MetaSVM
Benign
-0.33
T
MutationAssessor
Uncertain
2.0
M;M
PrimateAI
Benign
0.30
T
PROVEAN
Benign
-1.4
N;N
REVEL
Benign
0.27
Sift
Uncertain
0.0060
D;D
Sift4G
Benign
0.078
T;T
Vest4
0.20
MutPred
0.46
Gain of catalytic residue at K35 (P = 0);Gain of catalytic residue at K35 (P = 0);
MVP
0.66
MPC
0.24
ClinPred
0.12
T
GERP RS
0.23
Varity_R
0.16
gMVP
0.57

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.070
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: rs1218590339; hg19: chr14-69676275; API