rs771049445

Variant summary

Our verdict is Benign. The variant received -14 ACMG points: 0P and 14B. BP4_StrongBP6BP7BS1BS2

The NM_177438.3(DICER1):​c.2658C>T​(p.Asp886Asp) variant causes a synonymous change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000171 in 1,230,342 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 Conflicting classifications of pathogenicity (no stars).

Frequency

Genomes: 𝑓 0.000041 ( 0 hom., cov: 32)
Exomes 𝑓: 0.00019 ( 0 hom. )

Consequence

DICER1
NM_177438.3 synonymous

Scores

2

Clinical Significance

Conflicting classifications of pathogenicity criteria provided, conflicting classifications U:1B:4

Conservation

PhyloP100: 3.51

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)

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -14 ACMG points.

BP4
Computational evidence support a benign effect (BayesDel_noAF=-0.54).
BP6
Variant 14-95107754-G-A is Benign according to our data. Variant chr14-95107754-G-A is described in ClinVar as Conflicting_classifications_of_pathogenicity. ClinVar VariationId is 417097.
BP7
Synonymous conserved (PhyloP=3.51 with no splicing effect.
BS1
Variant frequency is greater than expected in population nfe. GnomAdExome4 allele frequency = 0.000189 (205/1082676) while in subpopulation NFE AF = 0.000239 (193/806542). AF 95% confidence interval is 0.000211. There are 0 homozygotes in GnomAdExome4. There are 93 alleles in the male GnomAdExome4 subpopulation. Median coverage is 37. This position passed quality control check.
BS2
High AC in GnomAd4 at 6 AD,Unknown gene.

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
DICER1NM_177438.3 linkc.2658C>T p.Asp886Asp synonymous_variant Exon 17 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.2658C>T p.Asp886Asp synonymous_variant Exon 17 of 27 1 NM_177438.3 ENSP00000343745.3 Q9UPY3-1

Frequencies

GnomAD3 genomes
AF:
0.0000406
AC:
6
AN:
147666
Hom.:
0
Cov.:
32
show subpopulations
Gnomad AFR
AF:
0.0000247
Gnomad AMI
AF:
0.00
Gnomad AMR
AF:
0.00
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:
0.0000746
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000478
AC:
12
AN:
250864
AF XY:
0.0000663
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:
0.000106
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.000189
AC:
205
AN:
1082676
Hom.:
0
Cov.:
37
AF XY:
0.000171
AC XY:
93
AN XY:
545214
show subpopulations
African (AFR)
AF:
0.000163
AC:
4
AN:
24584
American (AMR)
AF:
0.00
AC:
0
AN:
39598
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
18808
East Asian (EAS)
AF:
0.00
AC:
0
AN:
27836
South Asian (SAS)
AF:
0.0000125
AC:
1
AN:
79856
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
38266
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
4472
European-Non Finnish (NFE)
AF:
0.000239
AC:
193
AN:
806542
Other (OTH)
AF:
0.000164
AC:
7
AN:
42714
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.438
Heterozygous variant carriers
0
8
17
25
34
42
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
10
20
30
40
50
<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:
0.0000406
AC:
6
AN:
147666
Hom.:
0
Cov.:
32
AF XY:
0.0000416
AC XY:
3
AN XY:
72086
show subpopulations
African (AFR)
AF:
0.0000247
AC:
1
AN:
40518
American (AMR)
AF:
0.00
AC:
0
AN:
14758
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3416
East Asian (EAS)
AF:
0.00
AC:
0
AN:
4494
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4098
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10124
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000746
AC:
5
AN:
66986
Other (OTH)
AF:
0.00
AC:
0
AN:
2062
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.500
Heterozygous variant carriers
0
1
2
2
3
4
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Genome 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
Alfa
AF:
0.000116
Hom.:
0
Bravo
AF:
0.0000453
EpiCase
AF:
0.0000545
EpiControl
AF:
0.00

ClinVar

Significance: Conflicting classifications of pathogenicity
Submissions summary: Uncertain:1Benign:4
Revision: criteria provided, conflicting classifications
LINK: link

Submissions by phenotype

Hereditary cancer-predisposing syndrome Uncertain:1Benign:1
Mar 31, 2017
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. -

Nov 01, 2021
Sema4, Sema4
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:curation

- -

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

- -

not provided Benign:1
May 17, 2018
GeneDx
Significance:Likely benign
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This variant is considered likely benign or benign based on one or more of the following criteria: it is a conservative change, it occurs at a poorly conserved position in the protein, it is predicted to be benign by multiple in silico algorithms, and/or has population frequency not consistent with disease. -

DICER1-related tumor predisposition Benign:1
Jan 24, 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
BayesDel_noAF
Benign
-0.54
CADD
Benign
12
DANN
Benign
0.57
PhyloP100
3.5

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

Other links and lift over

dbSNP: rs771049445; hg19: chr14-95574091; API