Our verdict is Uncertain significance. Variant got 1 ACMG points: 5P and 4B. PM1PM2PP2BP4_ModerateBP6_Moderate
The NM_001195573.1(DICER1):c.5444G>T(p.Arg1815Leu) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 12/15 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).
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]
Verdict is Uncertain_significance. Variant got 1 ACMG points.
PM1
In a domain RNase III 2 (size 158) in uniprot entity DICER_HUMAN there are 5 pathogenic changes around while only 0 benign (100%) in NM_001195573.1
PM2
Very rare variant in population databases, with high coverage;
PP2
Missense variant in the DICER1 gene, where missense mutations are typically associated with disease (based on misZ statistic). The gene has 43 curated pathogenic missense variants (we use a threshold of 10). The gene has 111 curated benign missense variants. Gene score misZ: 4.2261 (above the threshold of 3.09). Trascript score misZ: 5.7475 (above the threshold of 3.09). GenCC associations: The gene is linked to 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.
BP4
Computational evidence support a benign effect (MetaRNN=0.17091182).
BP6
Variant 14-95090660-C-A is Benign according to our data. Variant chr14-95090660-C-A is described in ClinVar as [Likely_benign]. Clinvar id is 1582692.Status of the report is criteria_provided_single_submitter, 1 stars.