chrX-153445172-G-A

Variant summary

Our verdict is Uncertain significance. Variant got 0 ACMG points: 4P and 4B. PVS1_StrongBS2

The NM_080701.4(TREX2):​c.259C>T​(p.Arg87Ter) variant causes a stop gained change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00076 in 1,208,420 control chromosomes in the GnomAD database, including 4 homozygotes. There are 257 hemizygotes in GnomAD. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (no stars).

Frequency

Genomes: 𝑓 0.0041 ( 2 hom., 137 hem., cov: 24)
Exomes 𝑓: 0.00042 ( 2 hom. 120 hem. )

Consequence

TREX2
NM_080701.4 stop_gained

Scores

1
1
3

Clinical Significance

Benign no assertion criteria provided B:1

Conservation

PhyloP100: 0.265
Variant links:
Genes affected
TREX2 (HGNC:12270): (three prime repair exonuclease 2) This gene encodes a nuclear protein with 3' to 5' exonuclease activity. The encoded protein participates in double-stranded DNA break repair, and may interact with DNA polymerase delta. [provided by RefSeq, Nov 2012]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 0 ACMG points.

PVS1
Loss of function variant, product does not undergo nonsense mediated mRNA decay. Variant is located in the 3'-most exon, not predicted to undergo nonsense mediated mRNA decay. Fraction of 0.636 CDS is truncated, and there are 0 pathogenic variants in the truncated region.
BS2
High Homozygotes in GnomAd4 at 2 gene

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
TREX2NM_080701.4 linkuse as main transcriptc.259C>T p.Arg87Ter stop_gained 2/2 ENST00000370231.3

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
TREX2ENST00000370231.3 linkuse as main transcriptc.259C>T p.Arg87Ter stop_gained 2/25 NM_080701.4 P1Q9BQ50-2

Frequencies

GnomAD3 genomes
AF:
0.00407
AC:
461
AN:
113150
Hom.:
2
Cov.:
24
AF XY:
0.00382
AC XY:
135
AN XY:
35308
show subpopulations
Gnomad AFR
AF:
0.0138
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00194
Gnomad ASJ
AF:
0.00
Gnomad EAS
AF:
0.00
Gnomad SAS
AF:
0.000355
Gnomad FIN
AF:
0.00
Gnomad MID
AF:
0.00
Gnomad NFE
AF:
0.0000750
Gnomad OTH
AF:
0.00260
GnomAD3 exomes
AF:
0.00114
AC:
195
AN:
170385
Hom.:
1
AF XY:
0.000722
AC XY:
43
AN XY:
59561
show subpopulations
Gnomad AFR exome
AF:
0.0135
Gnomad AMR exome
AF:
0.00105
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000536
Gnomad OTH exome
AF:
0.000713
GnomAD4 exome
AF:
0.000415
AC:
455
AN:
1095218
Hom.:
2
Cov.:
32
AF XY:
0.000332
AC XY:
120
AN XY:
361376
show subpopulations
Gnomad4 AFR exome
AF:
0.0132
Gnomad4 AMR exome
AF:
0.00123
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.0000559
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000250
Gnomad4 OTH exome
AF:
0.000805
GnomAD4 genome
AF:
0.00410
AC:
464
AN:
113202
Hom.:
2
Cov.:
24
AF XY:
0.00387
AC XY:
137
AN XY:
35370
show subpopulations
Gnomad4 AFR
AF:
0.0139
Gnomad4 AMR
AF:
0.00194
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000356
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000751
Gnomad4 OTH
AF:
0.00257
Alfa
AF:
0.000805
Hom.:
11
Bravo
AF:
0.00468
ESP6500AA
AF:
0.0159
AC:
61
ESP6500EA
AF:
0.00
AC:
0
ExAC
AF:
0.00126
AC:
153

ClinVar

Significance: Benign
Submissions summary: Benign:1
Revision: no assertion criteria provided
LINK: link

Submissions by phenotype

Abnormality of neuronal migration Benign:1
Benign, no assertion criteria providedclinical testingGénétique et pathophysiologie de maladies neurodéveloppementales et épileptogènes, Institut de génétique et de biologie moléculaire et cellulaireOct 31, 2014- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_addAF
Benign
-0.019
T
BayesDel_noAF
Pathogenic
0.21
CADD
Pathogenic
34
DANN
Uncertain
0.99
FATHMM_MKL
Benign
0.066
N
MutationTaster
Benign
1.0
D;D;D;D;D;D;D;D
Vest4
0.80
GERP RS
0.41

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: rs141078733; hg19: chrX-152710630; COSMIC: COSV57848250; COSMIC: COSV57848250; API