rs769885715

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 1P and 2B. PP2BP4_Moderate

The NM_033629.6(TREX1):​c.923C>G​(p.Ser308Cys) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000707 in 1,612,768 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 15/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. S308F) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000079 ( 0 hom., cov: 33)
Exomes 𝑓: 0.000070 ( 0 hom. )

Consequence

TREX1
NM_033629.6 missense

Scores

17

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:5

Conservation

PhyloP100: 0.272

Publications

3 publications found
Variant links:
Genes affected
TREX1 (HGNC:12269): (three prime repair exonuclease 1) This gene encodes a nuclear protein with 3' exonuclease activity. The encoded protein may play a role in DNA repair and serve as a proofreading function for DNA polymerase. Mutations in this gene result in Aicardi-Goutieres syndrome, chilblain lupus, Cree encephalitis, and other diseases of the immune system. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Sep 2012]
ATRIP (HGNC:33499): (ATR interacting protein) This gene encodes an essential component of the DNA damage checkpoint. The encoded protein binds to single-stranded DNA coated with replication protein A. The protein also interacts with the ataxia telangiectasia and Rad3 related protein kinase, resulting in its accumulation at intranuclear foci induced by DNA damage. Multiple transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Aug 2012]
SHISA5 (HGNC:30376): (shisa family member 5) This gene encodes a member of the shisa family. The encoded protein is localized to the endoplasmic reticulum, and together with p53 induces apoptosis in a caspase-dependent manner. Alternative splicing results in multiple transcript variants. Related pseudogenes of this gene are found on chromosome X. [provided by RefSeq, Apr 2016]

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ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

PP2
Missense variant in the gene, where a lot of missense mutations are associated with disease in ClinVar. The gene has 7 curated pathogenic missense variants (we use a threshold of 10). The gene has 1 curated benign missense variants. Trascript score misZ: 0.29847 (below the threshold of 3.09). GenCC associations: The gene is linked to Aicardi-Goutieres syndrome 1, Aicardi-Goutieres syndrome, retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations, chilblain lupus 1, systemic lupus erythematosus, familial chilblain lupus.
BP4
Computational evidence support a benign effect (MetaRNN=0.08512887).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_033629.6. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TREX1
NM_033629.6
MANE Select
c.923C>Gp.Ser308Cys
missense
Exon 2 of 2NP_338599.1Q9NSU2-3
ATRIP
NM_130384.3
MANE Select
c.*2024C>G
3_prime_UTR
Exon 13 of 13NP_569055.1Q8WXE1-1
TREX1
NM_007248.5
c.893C>Gp.Ser298Cys
missense
Exon 2 of 2NP_009179.2

Ensembl Transcripts

Sel.
GeneTranscriptTagsHGVScHGVSpEffectExon RankProteinUniProt
TREX1
ENST00000625293.3
TSL:6 MANE Select
c.923C>Gp.Ser308Cys
missense
Exon 2 of 2ENSP00000486676.2Q9NSU2-3
TREX1
ENST00000444177.1
TSL:1
c.893C>Gp.Ser298Cys
missense
Exon 2 of 2ENSP00000415972.1Q9NSU2-2
TREX1
ENST00000433541.1
TSL:1
c.506C>Gp.Ser169Cys
missense
Exon 4 of 4ENSP00000412404.1C9J052

Frequencies

GnomAD3 genomes
AF:
0.0000788
AC:
12
AN:
152206
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000131
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:
0.000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000401
AC:
10
AN:
249512
AF XY:
0.0000296
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000290
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000801
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000698
AC:
102
AN:
1460562
Hom.:
0
Cov.:
33
AF XY:
0.0000743
AC XY:
54
AN XY:
726450
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33454
American (AMR)
AF:
0.0000671
AC:
3
AN:
44698
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26038
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39672
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86242
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53040
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
0.0000864
AC:
96
AN:
1111318
Other (OTH)
AF:
0.0000497
AC:
3
AN:
60336
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.471
Heterozygous variant carriers
0
6
12
19
25
31
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
4
8
12
16
20
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
GnomAD4 genome
AF:
0.0000788
AC:
12
AN:
152206
Hom.:
0
Cov.:
33
AF XY:
0.0000538
AC XY:
4
AN XY:
74354
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41438
American (AMR)
AF:
0.000131
AC:
2
AN:
15288
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3472
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5192
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4836
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10632
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.000147
AC:
10
AN:
68030
Other (OTH)
AF:
0.00
AC:
0
AN:
2090
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.546
Heterozygous variant carriers
0
1
2
3
4
5
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome Het
Variant carriers
0
2
4
6
8
10
<30
30-35
35-40
40-45
45-50
50-55
55-60
60-65
65-70
70-75
75-80
>80
Age
Alfa
AF:
0.000182
Hom.:
0
Bravo
AF:
0.000121
ExAC
AF:
0.0000494
AC:
6
EpiCase
AF:
0.000164
EpiControl
AF:
0.00

ClinVar

ClinVar submissions
Significance:Uncertain significance
Revision:criteria provided, multiple submitters, no conflicts
View on ClinVar
Pathogenic
VUS
Benign
Condition
-
1
-
Chilblain lupus 1;C0796126:Aicardi-Goutieres syndrome 1;C1860518:Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (1)
-
1
-
not provided (1)
-
1
-
Retinal dystrophy (1)
-
1
-
Systemic lupus erythematosus;C0024145:Chilblain lupus 1;C0796126:Aicardi-Goutieres syndrome 1;C1860518:Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (1)
-
1
-
TREX1-related disorder (1)

Computational scores

Source: dbNSFP v4.9

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.080
BayesDel_addAF
Benign
-0.27
T
BayesDel_noAF
Benign
-0.43
CADD
Benign
15
DANN
Benign
0.91
DEOGEN2
Benign
0.028
T
Eigen
Benign
-0.61
Eigen_PC
Benign
-0.76
FATHMM_MKL
Benign
0.27
N
LIST_S2
Benign
0.54
T
M_CAP
Benign
0.014
T
MetaRNN
Benign
0.085
T
MetaSVM
Benign
-1.0
T
PhyloP100
0.27
PrimateAI
Benign
0.38
T
PROVEAN
Benign
-0.24
N
REVEL
Benign
0.075
Sift
Benign
0.068
T
Sift4G
Benign
0.11
T
Vest4
0.41
MVP
0.15
ClinPred
0.076
T
GERP RS
0.60
Varity_R
0.081
gMVP
0.30
Mutation Taster
=93/7
polymorphism

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

Other links and lift over

dbSNP: rs769885715; hg19: chr3-48508977; COSMIC: COSV56498511; COSMIC: COSV56498511; API