rs753582860

Variant summary

Our verdict is Uncertain significance. The variant received 1 ACMG points: 2P and 1B. PM2BP4

The NM_177438.3(DICER1):​c.4403C>T​(p.Ser1468Phe) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000137 in 1,461,704 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 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. S1468C) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)
Exomes 𝑓: 0.0000014 ( 0 hom. )

Consequence

DICER1
NM_177438.3 missense

Scores

2
10
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.38

Publications

1 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 1 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
BP4
Computational evidence support a benign effect (MetaRNN=0.40080106).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DICER1NM_177438.3 linkc.4403C>T p.Ser1468Phe missense_variant Exon 23 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.4403C>T p.Ser1468Phe missense_variant Exon 23 of 27 1 NM_177438.3 ENSP00000343745.3 Q9UPY3-1

Frequencies

GnomAD3 genomes
Cov.:
33
GnomAD2 exomes
AF:
0.00000398
AC:
1
AN:
251262
AF XY:
0.00
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.0000289
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.00
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.00000137
AC:
2
AN:
1461704
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727180
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33468
American (AMR)
AF:
0.0000447
AC:
2
AN:
44710
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
26132
East Asian (EAS)
AF:
0.00
AC:
0
AN:
39700
South Asian (SAS)
AF:
0.00
AC:
0
AN:
86254
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53416
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5768
European-Non Finnish (NFE)
AF:
0.00
AC:
0
AN:
1111870
Other (OTH)
AF:
0.00
AC:
0
AN:
60386
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.550
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
ExAC
AF:
0.00000824
AC:
1

ClinVar

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

Submissions by phenotype

DICER1-related tumor predisposition Uncertain:1
Nov 26, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces serine, which is neutral and polar, with phenylalanine, which is neutral and non-polar, at codon 1468 of the DICER1 protein (p.Ser1468Phe). This variant is present in population databases (rs753582860, gnomAD 0.003%). 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: 943486). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt DICER1 protein function with a negative predictive value of 95%. 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. -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.27
BayesDel_addAF
Uncertain
0.13
D
BayesDel_noAF
Uncertain
0.040
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Benign
0.28
T;T;T;T;.;.
Eigen
Uncertain
0.61
Eigen_PC
Pathogenic
0.67
FATHMM_MKL
Pathogenic
0.97
D
LIST_S2
Uncertain
0.94
.;.;D;.;D;D
M_CAP
Uncertain
0.19
D
MetaRNN
Benign
0.40
T;T;T;T;T;T
MetaSVM
Uncertain
0.57
D
MutationAssessor
Benign
1.7
L;L;L;L;.;L
PhyloP100
7.4
PrimateAI
Uncertain
0.57
T
PROVEAN
Benign
-0.80
N;N;N;N;N;N
REVEL
Uncertain
0.29
Sift
Uncertain
0.0030
D;D;D;D;D;D
Sift4G
Benign
0.079
T;T;T;T;D;T
Polyphen
0.86
P;P;P;P;.;.
Vest4
0.46
MutPred
0.49
Loss of disorder (P = 0.0242);Loss of disorder (P = 0.0242);Loss of disorder (P = 0.0242);Loss of disorder (P = 0.0242);.;Loss of disorder (P = 0.0242);
MVP
0.80
MPC
1.4
ClinPred
0.65
D
GERP RS
5.6
Varity_R
0.41
gMVP
0.51
Mutation Taster
=39/61
disease causing

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: rs753582860; hg19: chr14-95562854; API