rs1060503639

Positions:

Variant summary

Our verdict is Uncertain significance. Variant got -1 ACMG points: 0P and 1B. BS2_Supporting

This summary comes from the ClinGen Evidence Repository: The NM_177438.2:c.5038A>G (p.Lys1680Glu) variant in DICER1 is a missense variant predicted to cause substitution of lysine by glutamic acid at amino acid 1680 (p.Lys1680Glu). The total allele frequency in gnomAD v4.1.0 is 0.000003420 (5/1461878 alleles) with highest population minor allele frequencies of 0.00004967 (3/60396 alleles) and 0.000001799 (2/1111996) in a population of undescribed ancestry and the European (non-Finnish) population, respectively (PM2_Supporting, BS1, and BA1 are not met). The computational predictor REVEL gives a score of 0.697, which is neither above nor below the thresholds predicting a damaging or benign impact on DICER1 function (PP3 and BP4 not met). This variant has been seen in 10 or more unrelated females without tumors through age 50 in at least one testing laboratory (BS2_Supporting; Internal lab data). In summary, this variant meets the criteria to be classified as Uncertain Significance for DICER1-related tumor predisposition based on the ACMG/AMP criteria applied, as specified by the ClinGen DICER1 VCEP: BS2_Supporting. (Bayesian Points: -1; VCEP specifications version 1.3.0; 02/27/2024) LINK:https://erepo.genome.network/evrepo/ui/classification/CA16614163/MONDO:0100216/024

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000034 ( 0 hom. )

Consequence

DICER1
NM_177438.3 missense

Scores

Clinical Significance

Uncertain significance reviewed by expert panel U:6O:1

Conservation

PhyloP100: 7.58

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 links:

DICER1 (HGNC:):

DICER1 links:

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got -1 ACMG points.

BS2

For more information check the summary or visit ClinGen Evidence Repository.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	MANE	Protein	UniProt
DICER1	NM_177438.3 linkuse as main transcript	c.5038A>G	p.Lys1680Glu	missense_variant	23/27	ENST00000343455.8	NP_803187.1	Q9UPY3-1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	#exon/exons	TSL	MANE	Protein	Appris	UniProt
DICER1	ENST00000343455.8 linkuse as main transcript	c.5038A>G	p.Lys1680Glu	missense_variant	23/27	1	NM_177438.3	ENSP00000343745.3		Q9UPY3-1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD3 exomes

AF:

0.00000398

AC:

AN:

251356

Hom.:

AF XY:

0.00000736

AC XY:

AN XY:

135842

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 SAS exome

AF:

0.00

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00000880

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000342

AC:

AN:

1461878

Hom.:

Cov.:

AF XY:

0.00000550

AC XY:

AN XY:

727242

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

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:

0.00000180

Gnomad4 OTH exome

AF:

0.0000497

GnomAD4 genome

Cov.:

Alfa

AF:

0.0000487

Hom.:

Bravo

AF:

0.00000378

EpiCase

AF:

0.000109

EpiControl

AF:

0.00

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:6Other:1

Revision: reviewed by expert panel

LINK: link

Submissions by phenotype

DICER1-related tumor predisposition

Uncertain:2

Uncertain significance, criteria provided, single submitter	clinical testing	Labcorp Genetics (formerly Invitae), Labcorp	Jan 25, 2024	This sequence change replaces lysine, which is basic and polar, with glutamic acid, which is acidic and polar, at codon 1680 of the DICER1 protein (p.Lys1680Glu). This variant is present in population databases (no rsID available, gnomAD 0.0009%). This missense change has been observed in individual(s) with unspecified cancer (PMID: 28873162). ClinVar contains an entry for this variant (Variation ID: 412143). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae indicates that this missense variant is expected to disrupt DICER1 protein function with a positive predictive value of 80%. 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. -
Uncertain significance, reviewed by expert panel	curation	ClinGen DICER1 and miRNA-Processing Gene Variant Curation Expert Panel, ClinGen	Feb 27, 2024	The NM_177438.2:c.5038A>G (p.Lys1680Glu) variant in DICER1 is a missense variant predicted to cause substitution of lysine by glutamic acid at amino acid 1680 (p.Lys1680Glu). The total allele frequency in gnomAD v4.1.0 is 0.000003420 (5/1461878 alleles) with highest population minor allele frequencies of 0.00004967 (3/60396 alleles) and 0.000001799 (2/1111996) in a population of undescribed ancestry and the European (non-Finnish) population, respectively (PM2_Supporting, BS1, and BA1 are not met). The computational predictor REVEL gives a score of 0.697, which is neither above nor below the thresholds predicting a damaging or benign impact on DICER1 function (PP3 and BP4 not met). This variant has been seen in 10 or more unrelated females without tumors through age 50 in at least one testing laboratory (BS2_Supporting; Internal lab data). In summary, this variant meets the criteria to be classified as Uncertain Significance for DICER1-related tumor predisposition based on the ACMG/AMP criteria applied, as specified by the ClinGen DICER1 VCEP: BS2_Supporting. (Bayesian Points: -1; VCEP specifications version 1.3.0; 02/27/2024) -

Hereditary cancer-predisposing syndrome

Uncertain:2

Uncertain significance, criteria provided, single submitter	curation	Sema4, Sema4	Sep 25, 2021	- -
Uncertain significance, criteria provided, single submitter	clinical testing	Ambry Genetics	Jan 10, 2024	The p.K1680E variant (also known as c.5038A>G), located in coding exon 22 of the DICER1 gene, results from an A to G substitution at nucleotide position 5038. The lysine at codon 1680 is replaced by glutamic acid, an amino acid with similar properties. This amino acid position is highly 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. -

not specified

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

Center for Genomic Medicine, Rigshospitalet, Copenhagen University Hospital

Aug 15, 2023

- -

not provided

Uncertain:1

Uncertain significance, criteria provided, single submitter

clinical testing

GeneDx

Nov 10, 2023

Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Observed in at least one individual with advanced cancer undergoing multigene hereditary cancer panel testing (PMID: 28873162); This variant is associated with the following publications: (PMID: 28873162) -

Pleuropulmonary blastoma

Other:1

not provided, no classification provided

phenotyping only

GenomeConnect - Invitae Patient Insights Network

Variant interpreted as Uncertain significance and reported on 09-01-2018 by Lab Invitae. GenomeConnect-Invitae Patient Insights Network assertions are reported exactly as they appear on the patient-provided report from the testing laboratory. Registry team members make no attempt to reinterpret the clinical significance of the variant. Phenotypic details are available under supporting information. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.62

BayesDel_addAF

Pathogenic

0.39

BayesDel_noAF

Pathogenic

0.32

CADD

Pathogenic

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.61

D;D;D;D;.;.

Eigen

Uncertain

0.67

Eigen_PC

Pathogenic

0.70

FATHMM_MKL

Pathogenic

0.98

LIST_S2

Uncertain

0.95

.;.;D;.;D;D

M_CAP

Uncertain

0.22

MetaRNN

Pathogenic

0.84

D;D;D;D;D;D

MetaSVM

Uncertain

0.38

MutationAssessor

Benign

1.6

L;L;L;L;.;L

PrimateAI

Uncertain

0.75

PROVEAN

Benign

-2.3

N;N;N;N;D;N

REVEL

Pathogenic

0.70

Sift

Uncertain

0.020

D;D;D;D;D;D

Sift4G

Uncertain

0.027

D;D;D;D;D;D

Polyphen

1.0

D;D;D;D;.;.

Vest4

0.88

MutPred

0.50

Loss of MoRF binding (P = 0.0075);Loss of MoRF binding (P = 0.0075);Loss of MoRF binding (P = 0.0075);Loss of MoRF binding (P = 0.0075);.;Loss of MoRF binding (P = 0.0075);

MVP

0.97

MPC

2.8

ClinPred

0.84

GERP RS

5.8

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.1

Varity_R

0.86

gMVP

0.87

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.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over