rs747510783

Variant summary

Our verdict is Likely benign. Variant got -3 ACMG points: 2P and 5B. PP2PP3BS1_SupportingBS2

The NM_177438.3(DICER1):​c.5504A>G​(p.Tyr1835Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000489 in 1,614,058 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000047 ( 0 hom. )

Consequence

DICER1
NM_177438.3 missense

Scores

7
10
2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:7B:1

Conservation

PhyloP100: 7.50
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]

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -3 ACMG points.

PP2
Missense variant in the DICER1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 43 curated pathogenic missense variants (we use a threshold of 10). The gene has 111 curated benign missense variants. Gene score misZ: 4.2261 (above the threshold of 3.09). Trascript score misZ: 6.1353 (above the threshold of 3.09). GenCC associations: The gene is linked to goiter, multinodular 1, with or without Sertoli-Leydig cell tumors, global developmental delay - lung cysts - overgrowth - Wilms tumor syndrome, DICER1-related tumor predisposition, DICER1 syndrome, pleuropulmonary blastoma.
PP3
MetaRNN computational evidence supports a deleterious effect, 0.821
BS1
Variant frequency is greater than expected in population amr. gnomad4 allele frequency = 0.0000657 (10/152184) while in subpopulation AMR AF= 0.000262 (4/15280). AF 95% confidence interval is 0.0000888. There are 0 homozygotes in gnomad4. There are 6 alleles in male gnomad4 subpopulation. Median coverage is 32. This position pass quality control queck. Existence of Clinvar submissions makes me limit the strength of this signal to Supporting
BS2
High AC in GnomAd4 at 10 AD gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DICER1NM_177438.3 linkc.5504A>G p.Tyr1835Cys missense_variant Exon 25 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.5504A>G p.Tyr1835Cys missense_variant Exon 25 of 27 1 NM_177438.3 ENSP00000343745.3 Q9UPY3-1

Frequencies

GnomAD3 genomes
AF:
0.0000657
AC:
10
AN:
152184
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.00
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.000262
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:
0.0000735
Gnomad OTH
AF:
0.000479
GnomAD3 exomes
AF:
0.0000796
AC:
20
AN:
251404
Hom.:
0
AF XY:
0.0000957
AC XY:
13
AN XY:
135870
show subpopulations
Gnomad AFR exome
AF:
0.00
Gnomad AMR exome
AF:
0.000202
Gnomad ASJ exome
AF:
0.00
Gnomad EAS exome
AF:
0.00
Gnomad SAS exome
AF:
0.00
Gnomad FIN exome
AF:
0.00
Gnomad NFE exome
AF:
0.0000880
Gnomad OTH exome
AF:
0.000489
GnomAD4 exome
AF:
0.0000472
AC:
69
AN:
1461874
Hom.:
0
Cov.:
32
AF XY:
0.0000536
AC XY:
39
AN XY:
727240
show subpopulations
Gnomad4 AFR exome
AF:
0.00
Gnomad4 AMR exome
AF:
0.000179
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:
0.0000441
Gnomad4 OTH exome
AF:
0.000132
GnomAD4 genome
AF:
0.0000657
AC:
10
AN:
152184
Hom.:
0
Cov.:
32
AF XY:
0.0000807
AC XY:
6
AN XY:
74346
show subpopulations
Gnomad4 AFR
AF:
0.00
Gnomad4 AMR
AF:
0.000262
Gnomad4 ASJ
AF:
0.00
Gnomad4 EAS
AF:
0.00
Gnomad4 SAS
AF:
0.00
Gnomad4 FIN
AF:
0.00
Gnomad4 NFE
AF:
0.0000735
Gnomad4 OTH
AF:
0.000479
Alfa
AF:
0.0000675
Hom.:
0
Bravo
AF:
0.000132
ExAC
AF:
0.0000576
AC:
7
EpiCase
AF:
0.00
EpiControl
AF:
0.000178

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:7Benign:1
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

not provided Uncertain:3
Oct 09, 2023
Quest Diagnostics Nichols Institute San Juan Capistrano
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Feb 13, 2017
PreventionGenetics, part of Exact Sciences
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Mar 28, 2023
GeneDx
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in a patient with an adenoid cystic carcinoma (Sprissler et al., 2020); This variant is associated with the following publications: (PMID: 32570879) -

Hereditary cancer-predisposing syndrome Uncertain:2
Nov 12, 2024
Ambry Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

The p.Y1835C variant (also known as c.5504A>G), located in coding exon 24 of the DICER1 gene, results from an A to G substitution at nucleotide position 5504. The tyrosine at codon 1835 is replaced by cysteine, an amino acid with highly dissimilar properties. This amino acid position is well conserved in available vertebrate species. In addition, this alteration is predicted to be deleterious by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -

Dec 19, 2024
Hereditary Cancer Group, L’Institut d'Investigació Biomèdica de Bellvitge
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

PM1_supporting -

not specified Uncertain:1
Mar 04, 2025
Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Global developmental delay - lung cysts - overgrowth - Wilms tumor syndrome Uncertain:1
Mar 17, 2024
Baylor Genetics
Significance: Uncertain significance
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

DICER1-related tumor predisposition Benign:1
Feb 03, 2025
Labcorp Genetics (formerly Invitae), Labcorp
Significance: Likely benign
Review Status: criteria provided, single submitter
Collection Method: clinical testing

- -

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
0.32
BayesDel_addAF
Uncertain
0.085
D
BayesDel_noAF
Pathogenic
0.17
CADD
Uncertain
25
DANN
Uncertain
1.0
DEOGEN2
Pathogenic
0.83
D;D;D;D;.
Eigen
Uncertain
0.67
Eigen_PC
Uncertain
0.59
FATHMM_MKL
Pathogenic
0.98
D
LIST_S2
Uncertain
0.95
.;.;D;.;D
M_CAP
Uncertain
0.12
D
MetaRNN
Pathogenic
0.82
D;D;D;D;D
MetaSVM
Uncertain
0.68
D
MutationAssessor
Pathogenic
3.0
M;M;M;M;.
PrimateAI
Uncertain
0.72
T
PROVEAN
Pathogenic
-6.6
D;D;D;D;D
REVEL
Pathogenic
0.74
Sift
Uncertain
0.0040
D;D;D;D;D
Sift4G
Uncertain
0.018
D;D;D;D;D
Polyphen
1.0
D;D;D;D;.
Vest4
0.70
MVP
0.86
MPC
2.7
ClinPred
0.88
D
GERP RS
5.6
Varity_R
0.66
gMVP
0.78

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

LitVar

Below is the list of publications found by LitVar. It may be empty.

Other links and lift over

dbSNP: rs747510783; hg19: chr14-95557563; API