rs1060503610

Variant summary

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

The NM_177438.3(DICER1):​c.38G>T​(p.Gly13Val) variant causes a missense change. The variant allele was found at a frequency of 0.000000684 in 1,461,658 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. G13S) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DICER1
NM_177438.3 missense

Scores

3
8
8

Clinical Significance

Uncertain significance criteria provided, multiple submitters, no conflicts U:3

Conservation

PhyloP100: 5.74

Publications

2 publications found
Variant links:
Genes affected
DICER1 (HGNC:17098): (dicer 1, ribonuclease III) This gene encodes a protein possessing an RNA helicase motif containing a DEXH box in its amino terminus and an RNA motif in the carboxy terminus. The encoded protein functions as a ribonuclease and is required by the RNA interference and small temporal RNA (stRNA) pathways to produce the active small RNA component that represses gene expression. This protein also acts as a strong antiviral agent with activity against RNA viruses, including the Zika and SARS-CoV-2 viruses. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Jul 2021]
DICER1 Gene-Disease associations (from GenCC):
  • DICER1-related tumor predisposition
    Inheritance: AD Classification: DEFINITIVE Submitted by: ClinGen
  • pleuropulmonary blastoma
    Inheritance: AD Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
  • DICER1 syndrome
    Inheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
  • global developmental delay - lung cysts - overgrowth - Wilms tumor syndrome
    Inheritance: Unknown Classification: LIMITED Submitted by: Labcorp Genetics (formerly Invitae)

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
DICER1NM_177438.3 linkc.38G>T p.Gly13Val missense_variant Exon 2 of 27 ENST00000343455.8 NP_803187.1 Q9UPY3-1

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
DICER1ENST00000343455.8 linkc.38G>T p.Gly13Val missense_variant Exon 2 of 27 1 NM_177438.3 ENSP00000343745.3 Q9UPY3-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461658
Hom.:
0
Cov.:
31
AF XY:
0.00
AC XY:
0
AN XY:
727100
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33480
American (AMR)
AF:
0.00
AC:
0
AN:
44686
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26130
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39690
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86220
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53388
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5764
European-Non Finnish (NFE)
AF:
8.99e-7
AC:
1
AN:
1111916
Other (OTH)
AF:
0.00
AC:
0
AN:
60384
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.625
Heterozygous variant carriers
0
0
1
1
2
2
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
Cov.:
33
Alfa
AF:
0.00
Hom.:
0

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:3
Revision: criteria provided, multiple submitters, no conflicts
LINK: link

Submissions by phenotype

Global developmental delay - lung cysts - overgrowth - Wilms tumor syndrome Uncertain:1
May 11, 2023
Baylor Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

- -

DICER1-related tumor predisposition Uncertain:1
Jul 21, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces glycine, which is neutral and non-polar, with valine, which is neutral and non-polar, at codon 13 of the DICER1 protein (p.Gly13Val). This variant is not present in population databases (gnomAD no frequency). This variant has not been reported in the literature in individuals affected with DICER1-related conditions. ClinVar contains an entry for this variant (Variation ID: 824357). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests that this variant is likely to be disruptive. 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. -

Hereditary cancer-predisposing syndrome Uncertain:1
Feb 22, 2022
Ambry Genetics
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

The p.G13V variant (also known as c.38G>T), located in coding exon 1 of the DICER1 gene, results from a G to T substitution at nucleotide position 38. The glycine at codon 13 is replaced by valine, an amino acid with dissimilar properties. This amino acid position is highly conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.74
BayesDel_addAF
Pathogenic
0.19
D
BayesDel_noAF
Uncertain
0.030
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.27
T;T;T;T;.;T;T
Eigen
Uncertain
0.33
Eigen_PC
Uncertain
0.41
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.95
.;.;D;.;D;.;D
M_CAP
Benign
0.032
D
MetaRNN
Uncertain
0.49
T;T;T;T;T;T;T
MetaSVM
Benign
-0.66
T
MutationAssessor
Benign
0.55
N;N;N;N;N;.;.
PhyloP100
5.7
PrimateAI
Uncertain
0.78
T
PROVEAN
Benign
-0.43
N;N;N;N;N;N;N
REVEL
Uncertain
0.35
Sift
Benign
0.20
T;T;T;T;T;D;D
Sift4G
Benign
0.40
T;T;T;T;T;.;.
Polyphen
0.99
D;D;D;D;.;.;.
Vest4
0.74
MutPred
0.39
Loss of disorder (P = 0.0112);Loss of disorder (P = 0.0112);Loss of disorder (P = 0.0112);Loss of disorder (P = 0.0112);Loss of disorder (P = 0.0112);Loss of disorder (P = 0.0112);Loss of disorder (P = 0.0112);
MVP
0.83
MPC
1.6
ClinPred
0.74
D
GERP RS
4.7
PromoterAI
-0.014
Neutral
Varity_R
0.33
gMVP
0.79
Mutation Taster
=74/26
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: rs1060503610; hg19: chr14-95599758; API