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GeneBe

1-241850544-T-C

Variant summary

Our verdict is Uncertain significance. Variant got 1 ACMG points: 2P and 1B. PM2BP4

The NM_130398.4(EXO1):ā€‹c.119T>Cā€‹(p.Ile40Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000186 in 1,613,930 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 12/21 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (ā˜…).

Frequency

Genomes: š‘“ 0.000013 ( 0 hom., cov: 32)
Exomes š‘“: 6.8e-7 ( 0 hom. )

Consequence

EXO1
NM_130398.4 missense

Scores

4
14

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 5.97
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.39038235).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
EXO1NM_130398.4 linkuse as main transcriptc.119T>C p.Ile40Thr missense_variant 4/16 ENST00000366548.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
EXO1ENST00000366548.8 linkuse as main transcriptc.119T>C p.Ile40Thr missense_variant 4/161 NM_130398.4 P2Q9UQ84-1

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000294
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461738
Hom.:
0
Cov.:
31
AF XY:
0.00000138
AC XY:
1
AN XY:
727176
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.00
Gnomad4 ASJ exome
AF:
0.00
Gnomad4 EAS exome
AF:
0.00
Gnomad4 SAS exome
AF:
0.00
Gnomad4 FIN exome
AF:
0.00
Gnomad4 NFE exome
AF:
8.99e-7
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152192
Hom.:
0
Cov.:
32
AF XY:
0.0000269
AC XY:
2
AN XY:
74344
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.00
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000294
Gnomad4 OTH
AF:
0.00
Alfa
AF:
0.0000712
Hom.:
0
Bravo
AF:
0.00000756

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

not specified Uncertain:1
Uncertain significance, criteria provided, single submitterclinical testingAmbry GeneticsFeb 28, 2024The c.119T>C (p.I40T) alteration is located in exon 2 (coding exon 1) of the EXO1 gene. This alteration results from a T to C substitution at nucleotide position 119, causing the isoleucine (I) at amino acid position 40 to be replaced by a threonine (T). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.30
BayesDel_addAF
Benign
-0.056
T
BayesDel_noAF
Benign
-0.32
CADD
Uncertain
26
DANN
Uncertain
0.99
DEOGEN2
Benign
0.17
T;T;.;T;.;T;T
Eigen
Benign
-0.034
Eigen_PC
Benign
0.16
FATHMM_MKL
Uncertain
0.88
D
M_CAP
Benign
0.064
D
MetaRNN
Benign
0.39
T;T;T;T;T;T;T
MetaSVM
Benign
-0.85
T
MutationAssessor
Benign
1.1
L;.;.;L;L;.;.
MutationTaster
Benign
0.86
D;D;D
PrimateAI
Benign
0.37
T
PROVEAN
Benign
-2.1
N;N;N;N;N;N;N
REVEL
Benign
0.16
Sift
Uncertain
0.018
D;D;D;D;D;D;D
Sift4G
Uncertain
0.0060
D;D;D;D;D;D;D
Polyphen
0.053
B;.;.;B;B;.;.
Vest4
0.34
MutPred
0.59
Gain of disorder (P = 0.0178);Gain of disorder (P = 0.0178);Gain of disorder (P = 0.0178);Gain of disorder (P = 0.0178);Gain of disorder (P = 0.0178);Gain of disorder (P = 0.0178);Gain of disorder (P = 0.0178);
MVP
0.79
MPC
0.13
ClinPred
0.89
D
GERP RS
5.2
Varity_R
0.61
gMVP
0.43

Splicing

Name
Calibrated prediction
Score
Prediction
SpliceAI score (max)
0.010
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: rs1479455432; hg19: chr1-242013846; API