chrX-153445172-G-A
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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
NM_080701.4 stop_gained
Scores
1
1
3
Clinical Significance
Conservation
PhyloP100: 0.265
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]
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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 |
---|---|---|---|---|---|---|---|
TREX2 | NM_080701.4 | c.259C>T | p.Arg87Ter | stop_gained | 2/2 | ENST00000370231.3 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TREX2 | ENST00000370231.3 | c.259C>T | p.Arg87Ter | stop_gained | 2/2 | 5 | NM_080701.4 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00407 AC: 461AN: 113150Hom.: 2 Cov.: 24 AF XY: 0.00382 AC XY: 135AN XY: 35308
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GnomAD3 exomes AF: 0.00114 AC: 195AN: 170385Hom.: 1 AF XY: 0.000722 AC XY: 43AN XY: 59561
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GnomAD4 exome AF: 0.000415 AC: 455AN: 1095218Hom.: 2 Cov.: 32 AF XY: 0.000332 AC XY: 120AN XY: 361376
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GnomAD4 genome AF: 0.00410 AC: 464AN: 113202Hom.: 2 Cov.: 24 AF XY: 0.00387 AC XY: 137AN XY: 35370
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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 provided | clinical testing | Génétique et pathophysiologie de maladies neurodéveloppementales et épileptogènes, Institut de génétique et de biologie moléculaire et cellulaire | Oct 31, 2014 | - - |
Computational scores
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Name
Calibrated prediction
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BayesDel_addAF
Benign
T
BayesDel_noAF
Pathogenic
CADD
Pathogenic
DANN
Uncertain
FATHMM_MKL
Benign
N
MutationTaster
Benign
D;D;D;D;D;D;D;D
Vest4
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at