14-95132650-G-C

Variant names:

• chr14-95132650-G-C
• rs1555376409
• NM_177438.3:c.172C>G

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PM2

The NM_001395686.1(DICER1):​c.-103C>G variant causes a 5 prime UTR premature start codon gain change involving the alteration of a conserved nucleotide. The variant was absent in control chromosomes in GnomAD project. Variant has been reported in ClinVar as Uncertain significance (★★).

• Frequency: Genomes: not found (cov: 33)
• Consequence: DICER1 NM_001395686.1 5_prime_UTR_premature_start_codon_gain
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 9.59
• Publications: 0 publications found

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)

ACMG classification

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

• PM2: Very rare variant in population databases, with high coverage

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_001395686.1. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DICER1	NM_177438.3	MANE Select	c.172C>G	p.His58Asp	missense	Exon 3 of 27	NP_803187.1	Q9UPY3-1
	DICER1	NM_001395686.1		c.-103C>G		5_prime_UTR_premature_start_codon_gain	Exon 3 of 27	NP_001382615.1
	DICER1	NM_001395687.1		c.-103C>G		5_prime_UTR_premature_start_codon_gain	Exon 2 of 25	NP_001382616.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DICER1	ENST00000343455.8	TSL:1 MANE Select	c.172C>G	p.His58Asp	missense	Exon 3 of 27	ENSP00000343745.3	Q9UPY3-1
	DICER1	ENST00000393063.6	TSL:1	c.172C>G	p.His58Asp	missense	Exon 5 of 29	ENSP00000376783.1	Q9UPY3-1
	DICER1	ENST00000527414.5	TSL:1	c.172C>G	p.His58Asp	missense	Exon 3 of 27	ENSP00000435681.1	Q9UPY3-1

Frequencies

GnomAD3 genomes Cov.: 33

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 33

ClinVar

ClinVar submissions

Significance: Uncertain significance

Revision: criteria provided, multiple submitters, no conflicts

Pathogenic	VUS	Benign	Condition
-	1	-	DICER1-related tumor predisposition (1)
-	1	-	Hereditary cancer-predisposing syndrome (1)

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Uncertain	0.48
BayesDel_addAF	Uncertain	0.11	D
BayesDel_noAF	Uncertain	-0.080
CADD	Uncertain	24
DANN	Uncertain	0.99
DEOGEN2	Benign	0.18	T
Eigen	Benign	0.14
Eigen_PC	Uncertain	0.34
FATHMM_MKL	Pathogenic	0.99	D
LIST_S2	Uncertain	0.89	D
M_CAP	Benign	0.047	D
MetaRNN	Uncertain	0.53	D
MetaSVM	Benign	-0.69	T
MutationAssessor	Benign	1.2	L
PhyloP100		9.6
PrimateAI	Uncertain	0.65	T
PROVEAN	Benign	-1.2	N
REVEL	Benign	0.25
Sift	Uncertain	0.027	D
Sift4G	Uncertain	0.027	D
Polyphen		0.030	B
Vest4		0.62
MutPred		0.52		Gain of relative solvent accessibility (P = 0.1012)
MVP		0.83
MPC		0.92
ClinPred		0.89	D
GERP RS		5.2
RBP_binding_hub_radar		0.0
RBP_regulation_power_radar		1.1
Varity_R		0.47
gMVP		0.82
Mutation Taster		=44/56	disease causing

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

Other links and lift over

dbSNP: rs1555376409; hg19: chr14-95598987;