rs180918578

Variant names:

Your query was ambiguous. Multiple possible variants found:

Variant summary

Our verdict is Benign. The variant received -13 ACMG points: 0P and 13B. BP4_StrongBP6BS1BS2

The NM_177438.3(DICER1):c.3260C>T(p.Ala1087Val) variant causes a missense change. The variant allele was found at a frequency of 0.0000403 in 1,613,970 control chromosomes in the GnomAD database, including 1 homozygotes. In-silico tool predicts a benign outcome for this variant. 16/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1087G) has been classified as Likely benign.

Frequency

Genomes: 𝑓 0.000026 ( 0 hom., cov: 33)

Exomes 𝑓: 0.000042 ( 1 hom. )

Consequence

DICER1
NM_177438.3 missense

Scores

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:2B:2

Conservation

PhyloP100: 4.09

Publications

0 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)

DICER1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -13 ACMG points.

BP4

Computational evidence support a benign effect (MetaRNN=0.05130455).

BP6

Variant 14-95105080-G-A is Benign according to our data. Variant chr14-95105080-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 412112.

BS1

Variant frequency is greater than expected in population mid. GnomAdExome4 allele frequency = 0.0000417 (61/1461650) while in subpopulation MID AF = 0.000705 (4/5676). AF 95% confidence interval is 0.000241. There are 1 homozygotes in GnomAdExome4. There are 33 alleles in the male GnomAdExome4 subpopulation. Median coverage is 32. This position passed quality control check.

BS2

High AC in GnomAdExome4 at 61 AD,Unknown gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
DICER1	NM_177438.3 link	c.3260C>T	p.Ala1087Val	missense_variant	Exon 20 of 27	ENST00000343455.8	NP_803187.1	Q9UPY3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
DICER1	ENST00000343455.8 link	c.3260C>T	p.Ala1087Val	missense_variant	Exon 20 of 27	1	NM_177438.3	ENSP00000343745.3		Q9UPY3-1

Frequencies

GnomAD3 genomes

AF:

0.0000263

AC:

AN:

152202

Hom.:

Cov.:

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:

0.000192

Gnomad SAS

AF:

0.000207

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.0000294

Gnomad OTH

AF:

0.00

GnomAD2 exomes

AF:

0.0000517

AC:

AN:

251364

AF XY:

0.0000442

show subpopulations

Gnomad AFR exome

AF:

0.00

Gnomad AMR exome

AF:

0.00

Gnomad ASJ exome

AF:

0.00

Gnomad EAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000352

Gnomad OTH exome

AF:

0.000163

GnomAD4 exome

AF:

0.0000417

AC:

AN:

1461650

Hom.:

Cov.:

AF XY:

0.0000454

AC XY:

AN XY:

727136

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33476

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26134

East Asian (EAS)

AF:

0.0000504

AC:

AN:

39698

South Asian (SAS)

AF:

0.000278

AC:

AN:

86234

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53402

Middle Eastern (MID)

AF:

0.000705

AC:

AN:

5676

European-Non Finnish (NFE)

AF:

0.0000243

AC:

AN:

1111924

Other (OTH)

AF:

0.0000662

AC:

AN:

60384

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.467

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Exome Hom

Variant carriers

<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:

0.0000263

AC:

AN:

152320

Hom.:

Cov.:

AF XY:

0.0000269

AC XY:

AN XY:

74486

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

41572

American (AMR)

AF:

0.00

AC:

AN:

15304

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

3472

East Asian (EAS)

AF:

0.000193

AC:

AN:

5188

South Asian (SAS)

AF:

0.000207

AC:

AN:

4826

European-Finnish (FIN)

AF:

0.00

AC:

AN:

10616

Middle Eastern (MID)

AF:

0.00

AC:

AN:

294

European-Non Finnish (NFE)

AF:

0.0000294

AC:

AN:

68030

Other (OTH)

AF:

0.00

AC:

AN:

2106

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.488

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Alfa

AF:

0.0000450

Hom.:

Bravo

AF:

0.0000378

ExAC

AF:

0.0000412

AC:

EpiCase

AF:

0.0000545

EpiControl

AF:

0.0000593

ClinVar

Significance: Conflicting classifications of pathogenicity

Submissions summary: Uncertain:2Benign:2

Revision: criteria provided, conflicting classifications

LINK: link

Submissions by phenotype

not provided

Uncertain:2

Apr 05, 2024

GeneDx

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

In silico analysis indicates that this missense variant does not alter protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -

Dec 28, 2019

ARUP Laboratories, Molecular Genetics and Genomics, ARUP Laboratories

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

The DICER1 c.3260C>T; p.Ala1087Val variant (rs180918578), to our knowledge, is not reported in the medical literature but is reported in the ClinVar database (Variation ID: 412112). This variant is found in the general population with an overall allele frequency of 0.005% (13/251364 alleles, including 1 homozygote) in the Genome Aggregation Database. The alanine at codon 1087 is weakly conserved, and computational analyses (SIFT, PolyPhen-2) predict that this variant is tolerated. Due to limited information, the clinical significance of this variant is uncertain at this time. -

DICER1-related tumor predisposition

Benign:1

Jan 23, 2025

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

- -

Hereditary cancer-predisposing syndrome

Benign:1

May 22, 2018

Ambry Genetics

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This alteration is classified as likely benign based on a combination of the following: seen in unaffected individuals, population frequency, intact protein function, lack of segregation with disease, co-occurrence, RNA analysis, in silico models, amino acid conservation, lack of disease association in case-control studies, and/or the mechanism of disease or impacted region is inconsistent with a known cause of pathogenicity. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Benign

0.071

BayesDel_addAF

Benign

-0.44

BayesDel_noAF

Benign

-0.58

CADD

Benign

(source)

DANN

Benign

0.96

DEOGEN2

Benign

0.26

T;T;T;T;.

Eigen

Benign

-0.65

Eigen_PC

Benign

-0.54

FATHMM_MKL

Uncertain

0.91

LIST_S2

Benign

0.81

.;.;T;.;T

M_CAP

Benign

0.013

MetaRNN

Benign

0.051

T;T;T;T;T

MetaSVM

Benign

-0.84

MutationAssessor

Benign

0.0

N;N;N;N;N

PhyloP100

4.1

PrimateAI

Benign

0.33

PROVEAN

Benign

-0.67

N;N;N;N;N

REVEL

Benign

0.16

Sift

Benign

0.31

T;T;T;T;T

Sift4G

Benign

0.27

T;T;T;T;T

Polyphen

0.0020

B;B;B;B;.

Vest4

0.068

MVP

0.44

MPC

0.49

ClinPred

0.059

GERP RS

0.49

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.021

gMVP

0.18

Mutation Taster

=99/1

polymorphism

(source)

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

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over