2-232238605-T-G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_152383.5(DIS3L2):​c.1277T>G​(p.Val426Gly) variant causes a missense change. The variant allele was found at a frequency of 0.00000372 in 1,614,120 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. V426A) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.000013 ( 0 hom., cov: 33)
Exomes 𝑓: 0.0000027 ( 0 hom. )

Consequence

DIS3L2
NM_152383.5 missense

Scores

8
11

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:2

Conservation

PhyloP100: 5.71

Publications

0 publications found
Variant links:
Genes affected
DIS3L2 (HGNC:28648): (DIS3 like 3'-5' exoribonuclease 2) The protein encoded by this gene is similar in sequence to 3'/5' exonucleolytic subunits of the RNA exosome. The exosome is a large multimeric ribonucleotide complex responsible for degrading various RNA substrates. Several transcript variants, some protein-coding and some not, have been found for this gene. [provided by RefSeq, Mar 2012]
DIS3L2 Gene-Disease associations (from GenCC):
  • Perlman syndrome
    Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), G2P

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PM2
Very rare variant in population databases, with high coverage;

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DIS3L2NM_152383.5 linkc.1277T>G p.Val426Gly missense_variant Exon 11 of 21 ENST00000325385.12 NP_689596.4
DIS3L2NM_001257281.2 linkc.1277T>G p.Val426Gly missense_variant Exon 11 of 14 NP_001244210.1
DIS3L2NR_046476.2 linkn.1423T>G non_coding_transcript_exon_variant Exon 11 of 21
DIS3L2NR_046477.2 linkn.1399T>G non_coding_transcript_exon_variant Exon 10 of 19

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DIS3L2ENST00000325385.12 linkc.1277T>G p.Val426Gly missense_variant Exon 11 of 21 5 NM_152383.5 ENSP00000315569.7

Frequencies

GnomAD3 genomes
AF:
0.0000131
AC:
2
AN:
152254
Hom.:
0
Cov.:
33
show subpopulations
Gnomad AFR
AF:
0.0000482
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:
0.00
Gnomad OTH
AF:
0.00
GnomAD4 exome
AF:
0.00000274
AC:
4
AN:
1461866
Hom.:
0
Cov.:
30
AF XY:
0.00000275
AC XY:
2
AN XY:
727236
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33478
American (AMR)
AF:
0.00
AC:
0
AN:
44718
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26136
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00000360
AC:
4
AN:
1111996
Other (OTH)
AF:
0.00
AC:
0
AN:
60396
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.413
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome 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
GnomAD4 genome
AF:
0.0000131
AC:
2
AN:
152254
Hom.:
0
Cov.:
33
AF XY:
0.0000134
AC XY:
1
AN XY:
74392
show subpopulations
African (AFR)
AF:
0.0000482
AC:
2
AN:
41472
American (AMR)
AF:
0.00
AC:
0
AN:
15290
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4832
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10630
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
68042
Other (OTH)
AF:
0.00
AC:
0
AN:
2094
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.475
Heterozygous variant carriers
0
1
1
2
2
3
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000624
Hom.:
0
Bravo
AF:
0.00000378

ClinVar

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

Submissions by phenotype

Perlman syndrome Uncertain:2
Sep 10, 2019
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant was determined to be of uncertain significance according to ACMG Guidelines, 2015 [PMID:25741868]. -

Feb 25, 2023
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces valine, which is neutral and non-polar, with glycine, which is neutral and non-polar, at codon 426 of the DIS3L2 protein (p.Val426Gly). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is not expected to disrupt DIS3L2 protein function. ClinVar contains an entry for this variant (Variation ID: 463053). This variant has not been reported in the literature in individuals affected with DIS3L2-related conditions. This variant is not present in population databases (gnomAD no frequency). -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.26
BayesDel_addAF
Benign
0.0037
T
BayesDel_noAF
Benign
-0.23
CADD
Uncertain
25
DANN
Uncertain
0.98
DEOGEN2
Benign
0.26
.;T;T;T
Eigen
Uncertain
0.21
Eigen_PC
Uncertain
0.33
FATHMM_MKL
Uncertain
0.97
D
LIST_S2
Uncertain
0.90
D;T;.;D
M_CAP
Benign
0.023
T
MetaRNN
Uncertain
0.56
D;D;D;D
MetaSVM
Benign
-0.96
T
MutationAssessor
Benign
0.82
L;L;L;.
PhyloP100
5.7
PrimateAI
Benign
0.40
T
PROVEAN
Uncertain
-3.4
D;D;D;D
REVEL
Benign
0.18
Sift
Uncertain
0.024
D;D;D;T
Sift4G
Benign
0.28
T;D;D;T
Polyphen
0.30
.;B;B;.
Vest4
0.50
MutPred
0.70
Loss of stability (P = 0.0038);Loss of stability (P = 0.0038);Loss of stability (P = 0.0038);.;
MVP
0.14
MPC
0.87
ClinPred
0.88
D
GERP RS
4.5
Varity_R
0.57
gMVP
0.63
Mutation Taster
=64/36
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: rs1553539258; hg19: chr2-233103315; API