chr14-95115805-C-T

Variant summary

Our verdict is Uncertain significance. Variant got 4 ACMG points: 4P and 0B. PM2PP2PP3

The NM_177438.3(DICER1):​c.1769G>A​(p.Cys590Tyr) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,846 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. C590F) has been classified as Uncertain significance.

Frequency

Genomes: not found (cov: 32)
Exomes 𝑓: 6.8e-7 ( 0 hom. )

Consequence

DICER1
NM_177438.3 missense

Scores

7
5
7

Clinical Significance

Not reported in ClinVar

Conservation

PhyloP100: 7.66
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]

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ACMG classification

Classification made for transcript

Verdict is Uncertain_significance. Variant got 4 ACMG points.

PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in gene, where missense usually causes diseases (based on misZ statistic), DICER1. . Gene score misZ 4.2261 (greater than the threshold 3.09). Trascript score misZ 6.1353 (greater than threshold 3.09). GenCC has associacion of gene with 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, 0.755

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect #exon/exons MANE UniProt
DICER1NM_177438.3 linkuse as main transcriptc.1769G>A p.Cys590Tyr missense_variant 11/27 ENST00000343455.8

Ensembl

Gene Transcript HGVSc HGVSp Effect #exon/exons TSL MANE Appris UniProt
DICER1ENST00000343455.8 linkuse as main transcriptc.1769G>A p.Cys590Tyr missense_variant 11/271 NM_177438.3 P1Q9UPY3-1

Frequencies

GnomAD3 genomes
Cov.:
32
GnomAD4 exome
AF:
6.84e-7
AC:
1
AN:
1461846
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
727234
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:
0.0000187
Gnomad4 NFE exome
AF:
0.00
Gnomad4 OTH exome
AF:
0.00
GnomAD4 genome
Cov.:
32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.3

Name
Calibrated prediction
Score
Prediction
AlphaMissense
Pathogenic
0.86
BayesDel_addAF
Pathogenic
0.29
D
BayesDel_noAF
Pathogenic
0.17
CADD
Uncertain
24
DANN
Uncertain
0.99
DEOGEN2
Pathogenic
0.80
D;D;D;D;.
Eigen
Benign
0.042
Eigen_PC
Benign
0.21
FATHMM_MKL
Pathogenic
1.0
D
LIST_S2
Uncertain
0.95
.;.;D;.;D
M_CAP
Benign
0.035
D
MetaRNN
Pathogenic
0.75
D;D;D;D;D
MetaSVM
Benign
-0.95
T
MutationAssessor
Benign
1.5
L;L;L;L;L
MutationTaster
Benign
1.0
D;D;D;D;D
PrimateAI
Pathogenic
0.85
D
PROVEAN
Uncertain
-3.5
D;D;D;D;D
REVEL
Uncertain
0.33
Sift
Benign
0.15
T;T;T;T;T
Sift4G
Uncertain
0.020
D;D;D;D;D
Polyphen
0.35
B;B;B;B;.
Vest4
0.93
MutPred
0.31
Loss of methylation at K589 (P = 0.0145);Loss of methylation at K589 (P = 0.0145);Loss of methylation at K589 (P = 0.0145);Loss of methylation at K589 (P = 0.0145);Loss of methylation at K589 (P = 0.0145);
MVP
0.90
MPC
1.3
ClinPred
0.95
D
GERP RS
5.0
Varity_R
0.67
gMVP
0.85

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

No publications associated with this variant yet.

Other links and lift over

hg19: chr14-95582142; API