Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2BP4_Moderate

The ENST00000343455.8(DICER1):c.3221C>T(p.Thr1074Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. 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. T1074A) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 33)

Consequence

DICER1
ENST00000343455.8 missense

Scores

Clinical Significance

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

Conservation

PhyloP100: 8.15

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:

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ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 0 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (MetaRNN=0.19710061).

Variant Effect in Transcripts

ACMG analysis was done for transcript: ENST00000343455.8. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DICER1	NM_177438.3	MANE Select	c.3221C>T	p.Thr1074Ile	missense	Exon 20 of 27	NP_803187.1
DICER1	NM_001271282.3		c.3221C>T	p.Thr1074Ile	missense	Exon 20 of 27	NP_001258211.1
DICER1	NM_001291628.2		c.3221C>T	p.Thr1074Ile	missense	Exon 20 of 27	NP_001278557.1

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein
DICER1	ENST00000343455.8	TSL:1 MANE Select	c.3221C>T	p.Thr1074Ile	missense	Exon 20 of 27	ENSP00000343745.3
DICER1	ENST00000393063.6	TSL:1	c.3221C>T	p.Thr1074Ile	missense	Exon 22 of 29	ENSP00000376783.1
DICER1	ENST00000527414.5	TSL:1	c.3221C>T	p.Thr1074Ile	missense	Exon 20 of 27	ENSP00000435681.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Cov.:

GnomAD4 genome

Cov.:

ClinVar

ClinVar submissions as Germline

Significance:Uncertain significance

Revision:criteria provided, multiple submitters, no conflicts

View on ClinVar

Pathogenic

VUS

Benign

Condition

DICER1-related tumor predisposition (1)

Euthyroid goiter;C1266144:Pleuropulmonary blastoma;C1867234:Rhabdomyosarcoma, embryonal, 2;C4748924:Global developmental delay - lung cysts - overgrowth - Wilms tumor syndrome (1)

Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.63

BayesDel_addAF

Benign

-0.012

BayesDel_noAF

Benign

-0.25

CADD

Benign

(source)

DANN

Uncertain

1.0

DEOGEN2

Benign

0.22

Eigen

Benign

-0.19

Eigen_PC

Benign

0.019

FATHMM_MKL

Pathogenic

0.99

LIST_S2

Uncertain

0.92

M_CAP

Benign

0.024

MetaRNN

Benign

0.20

MetaSVM

Benign

-1.0

MutationAssessor

Benign

1.4

PhyloP100

8.2

PrimateAI

Pathogenic

0.79

PROVEAN

Benign

2.4

REVEL

Benign

0.20

Sift

Benign

0.30

Sift4G

Benign

0.23

Polyphen

0.073

Vest4

0.50

MutPred

0.28

Loss of disorder (P = 0.0222)

MVP

0.72

MPC

0.73

ClinPred

0.71

GERP RS

4.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.7

Varity_R

0.15

gMVP

0.70

Mutation Taster

=244/56

polymorphism

(source)

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

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chr14-95105119-G-A

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

ClinVar submissions as Germline

Computational scores

Splicing

Publications

Other links and lift over