rs1555369577
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Variant summary
Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP2
The ENST00000343455.8(DICER1):āc.3527A>Gā(p.Asn1176Ser) variant causes a missense change. The variant allele was found at a frequency of 0.00000248 in 1,614,074 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (ā ā ). Synonymous variant affecting the same amino acid position (i.e. N1176N) has been classified as Likely benign.
Frequency
Genomes: š 0.0000066 ( 0 hom., cov: 33)
Exomes š: 0.0000021 ( 0 hom. )
Consequence
DICER1
ENST00000343455.8 missense
ENST00000343455.8 missense
Scores
1
9
9
Clinical Significance
Conservation
PhyloP100: 7.16
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 3 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.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
DICER1 | NM_177438.3 | c.3527A>G | p.Asn1176Ser | missense_variant | 21/27 | ENST00000343455.8 | NP_803187.1 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
DICER1 | ENST00000343455.8 | c.3527A>G | p.Asn1176Ser | missense_variant | 21/27 | 1 | NM_177438.3 | ENSP00000343745 | P1 |
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152198Hom.: 0 Cov.: 33
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GnomAD4 exome AF: 0.00000205 AC: 3AN: 1461876Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727236
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GnomAD4 genome AF: 0.00000657 AC: 1AN: 152198Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74350
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ClinVar
Significance: Uncertain significance
Submissions summary: Uncertain:2
Revision: criteria provided, multiple submitters, no conflicts
LINK: link
Submissions by phenotype
DICER1-related tumor predisposition Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Labcorp Genetics (formerly Invitae), Labcorp | Nov 14, 2021 | Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. ClinVar contains an entry for this variant (Variation ID: 477146). This variant has not been reported in the literature in individuals affected with DICER1-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces asparagine, which is neutral and polar, with serine, which is neutral and polar, at codon 1176 of the DICER1 protein (p.Asn1176Ser). 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. - |
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Jun 22, 2022 | The p.N1176S variant (also known as c.3527A>G), located in coding exon 20 of the DICER1 gene, results from an A to G substitution at nucleotide position 3527. The asparagine at codon 1176 is replaced by serine, an amino acid with highly similar properties. This amino acid position is conserved. In addition, this alteration is predicted to be tolerated by in silico analysis. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. - |
Computational scores
Source:
Name
Calibrated prediction
Score
Prediction
AlphaMissense
Benign
BayesDel_addAF
Uncertain
T
BayesDel_noAF
Benign
CADD
Benign
DANN
Uncertain
DEOGEN2
Benign
T;T;T;T;.;.
Eigen
Uncertain
Eigen_PC
Uncertain
FATHMM_MKL
Pathogenic
D
LIST_S2
Uncertain
.;.;D;.;D;D
M_CAP
Uncertain
D
MetaRNN
Uncertain
T;T;T;T;T;T
MetaSVM
Uncertain
D
MutationAssessor
Benign
M;M;M;M;.;M
MutationTaster
Benign
D;D;D;D;D;D
PrimateAI
Benign
T
PROVEAN
Benign
N;N;N;N;N;N
REVEL
Benign
Sift
Uncertain
D;D;D;D;D;D
Sift4G
Benign
T;T;T;T;T;T
Polyphen
B;B;B;B;.;.
Vest4
MutPred
Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);Gain of sheet (P = 0.0477);.;Gain of sheet (P = 0.0477);
MVP
MPC
0.44
ClinPred
D
GERP RS
Varity_R
gMVP
Splicing
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SpliceAI score (max)
Details are displayed if max score is > 0.2
Find out detailed SpliceAI scores and Pangolin per-transcript scores at