dbSNP rs3135943: TREX1:p.Lys66Lys (chr3-48466853-G-A) – ACMG Classification: Benign (-20 pts)

Variant summary

Our verdict is Benign. The variant received -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBS1BS2

The NM_033629.6(TREX1):c.198G>A(p.Lys66Lys) variant causes a synonymous change. The variant allele was found at a frequency of 0.000823 in 1,613,888 control chromosomes in the GnomAD database, including 9 homozygotes. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.0046 ( 5 hom., cov: 33)

Exomes 𝑓: 0.00043 ( 4 hom. )

Consequence

TREX1
NM_033629.6 synonymous

Scores

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:8

Conservation

PhyloP100: 3.79

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]

TREX1 links:

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]

ATRIP Gene-Disease associations (from GenCC):

breast cancer
Inheritance: AD Classification: MODERATE Submitted by: G2P
Seckel syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
hereditary breast carcinoma
Inheritance: AD Classification: LIMITED Submitted by: ClinGen

ATRIP links:

ATRIP-TREX1 (HGNC:):

ATRIP-TREX1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -20 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.55).

BP6

Variant 3-48466853-G-A is Benign according to our data. Variant chr3-48466853-G-A is described in ClinVar as Benign. ClinVar VariationId is 345774.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

BS1

Variant frequency is greater than expected in population afr. GnomAd4 allele frequency = 0.00456 (694/152328) while in subpopulation AFR AF = 0.016 (666/41572). AF 95% confidence interval is 0.015. There are 5 homozygotes in GnomAd4. There are 322 alleles in the male GnomAd4 subpopulation. Median coverage is 33. This position passed quality control check.

BS2

High Homozygotes in GnomAd4 at 5 AR,AD,Unknown gene

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

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TREX1	NM_033629.6	MANE Select	c.198G>A	p.Lys66Lys	synonymous	Exon 2 of 2	NP_338599.1	Q9NSU2-3
ATRIP	NM_130384.3	MANE Select	c.*1299G>A		3_prime_UTR	Exon 13 of 13	NP_569055.1	Q8WXE1-1
TREX1	NM_007248.5		c.168G>A	p.Lys56Lys	synonymous	Exon 2 of 2	NP_009179.2

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
TREX1	ENST00000625293.3	TSL:6 MANE Select	c.198G>A	p.Lys66Lys	synonymous	Exon 2 of 2	ENSP00000486676.2	Q9NSU2-3
TREX1	ENST00000444177.1	TSL:1	c.168G>A	p.Lys56Lys	synonymous	Exon 2 of 2	ENSP00000415972.1	Q9NSU2-2
TREX1	ENST00000433541.1	TSL:1	c.-220G>A		5_prime_UTR	Exon 4 of 4	ENSP00000412404.1	C9J052

Frequencies

GnomAD3 genomes

AF:

0.00455

AC:

693

AN:

152210

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0160

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00131

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:

0.0000294

Gnomad OTH

AF:

0.00239

GnomAD2 exomes

AF:

0.00123

AC:

310

AN:

251072

AF XY:

0.000899

show subpopulations

Gnomad AFR exome

AF:

0.0168

Gnomad AMR exome

AF:

0.000868

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000264

Gnomad OTH exome

AF:

0.000652

GnomAD4 exome

AF:

0.000434

AC:

634

AN:

1461560

Hom.:

Cov.:

AF XY:

0.000373

AC XY:

271

AN XY:

727100

show subpopulations

African (AFR)

AF:

0.0152

AC:

510

AN:

33480

American (AMR)

AF:

0.000984

AC:

AN:

44724

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000464

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53092

Middle Eastern (MID)

AF:

0.000173

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000629

AC:

AN:

1112010

Other (OTH)

AF:

0.00113

AC:

AN:

60392

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.478

Heterozygous variant carriers

116

174

232

290

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

100

<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:

0.00456

AC:

694

AN:

152328

Hom.:

Cov.:

AF XY:

0.00432

AC XY:

322

AN XY:

74502

show subpopulations

African (AFR)

AF:

0.0160

AC:

666

AN:

41572

American (AMR)

AF:

0.00131

AC:

AN:

15308

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3470

East Asian (EAS)

AF:

0.00

AC:

AN:

5180

South Asian (SAS)

AF:

0.000207

AC:

AN:

4828

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10624

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68028

Other (OTH)

AF:

0.00237

AC:

AN:

2112

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

130

163

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Genome Het

Genome Hom

Variant carriers

<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:

0.00227

Hom.:

Bravo

AF:

0.00496

Asia WGS

AF:

0.00173

AC:

AN:

3478

EpiCase

AF:

0.00

EpiControl

AF:

0.000178

ClinVar

ClinVar submissions

Significance:Benign

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

not specified (4)

Aicardi-Goutieres syndrome 1 (1)

Chilblain lupus 1;C0796126:Aicardi-Goutieres syndrome 1;C1860518:Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (1)

not provided (1)

Retinal vasculopathy with cerebral leukoencephalopathy and systemic manifestations (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.55

CADD

Benign

7.9

(source)

DANN

Benign

0.81

PhyloP100

3.8

Mutation Taster

=288/12

polymorphism

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.020

Details are displayed if max score is > 0.2

Find out detailed SpliceAI scores and Pangolin per-transcript scores at spliceailookup.broadinstitute.org

Publications

You must be logged in to view publications. This limit was set because tens of millions (!) of queries from AI bots are generated daily.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

Age Distribution

Age Distribution

ClinVar

Computational scores

Splicing

Publications

Other links and lift over