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GeneBe

1-241852289-T-C

Variant summary

Our verdict is Benign. Variant got -20 ACMG points: 0P and 20B. BP4_StrongBP6_Very_StrongBA1

The NM_130398.4(EXO1):c.162-3T>C variant causes a splice region, splice polypyrimidine tract, intron change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00475 in 1,601,104 control chromosomes in the GnomAD database, including 332 homozygotes. In-silico tool predicts a benign outcome for this variant. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Benign (★★).

Frequency

Genomes: 𝑓 0.026 ( 166 hom., cov: 32)
Exomes 𝑓: 0.0026 ( 166 hom. )

Consequence

EXO1
NM_130398.4 splice_region, splice_polypyrimidine_tract, intron

Scores

2
Splicing: ADA: 0.0001119
2

Clinical Significance

Benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: 0.448
Variant links:
Genes affected
EXO1 (HGNC:3511): (exonuclease 1) This gene encodes a protein with 5' to 3' exonuclease activity as well as an RNase H activity. It is similar to the Saccharomyces cerevisiae protein Exo1 which interacts with Msh2 and which is involved in mismatch repair and recombination. Alternative splicing of this gene results in three transcript variants encoding two different isoforms. [provided by RefSeq, Jul 2008]

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ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -20 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.66).
BP6
Variant 1-241852289-T-C is Benign according to our data. Variant chr1-241852289-T-C is described in ClinVar as [Benign]. Clinvar id is 767770.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.
BA1
GnomAd4 highest subpopulation (AFR) allele frequency at 95% confidence interval = 0.0874 is higher than 0.05.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EXO1NM_130398.4 linkuse as main transcriptc.162-3T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant ENST00000366548.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EXO1ENST00000366548.8 linkuse as main transcriptc.162-3T>C splice_region_variant, splice_polypyrimidine_tract_variant, intron_variant 1 NM_130398.4 P2Q9UQ84-1

Frequencies

GnomAD3 genomes
AF:
0.0255
AC:
3883
AN:
152196
Hom.:
165
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0896
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00824
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:
0.0000735
Gnomad OTH
AF:
0.0186
GnomAD3 exomes
AF:
0.00669
AC:
1674
AN:
250124
Hom.:
67
AF XY:
0.00474
AC XY:
642
AN XY:
135378
show subpopulations
Gnomad AFR exome
AF:
0.0919
Gnomad AMR exome
AF:
0.00448
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.000131
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.000106
Gnomad OTH exome
AF:
0.00212
GnomAD4 exome
AF:
0.00256
AC:
3705
AN:
1448790
Hom.:
166
Cov.:
28
AF XY:
0.00213
AC XY:
1537
AN XY:
721696
show subpopulations
Gnomad4 AFR exome
AF:
0.0909
Gnomad4 AMR exome
AF:
0.00486
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.000244
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
0.0000454
Gnomad4 OTH exome
AF:
0.00637
GnomAD4 genome
AF:
0.0256
AC:
3904
AN:
152314
Hom.:
166
Cov.:
32
AF XY:
0.0251
AC XY:
1872
AN XY:
74494
show subpopulations
Gnomad4 AFR
AF:
0.0899
Gnomad4 AMR
AF:
0.00817
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.000207
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.0184
Alfa
AF:
0.0132
Hom.:
63
Bravo
AF:
0.0299
Asia WGS
AF:
0.00664
AC:
23
AN:
3478
EpiCase
AF:
0.000273
EpiControl
AF:
0.000119

ClinVar

Significance: Benign
Submissions summary: Benign:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

EXO1-related disorder Benign:1
Benign, criteria provided, single submitterclinical testingPreventionGenetics, part of Exact SciencesAug 13, 2019This variant is classified as benign based on ACMG/AMP sequence variant interpretation guidelines (Richards et al. 2015 PMID: 25741868, with internal and published modifications). -
not provided Benign:1
Benign, criteria provided, single submitterclinical testingInvitaeJun 27, 2018- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
BayesDel_noAF
Benign
-0.66
Cadd
Benign
9.2
Dann
Benign
0.59
RBP_binding_hub_radar
0.0
RBP_regulation_power_radar
1.7

Splicing

Name
Calibrated prediction
Score
Prediction
dbscSNV1_ADA
Benign
0.00011
dbscSNV1_RF
Benign
0.024
SpliceAI score (max)
0.15
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: rs4149863; hg19: chr1-242015591; API