chr14-95107663-C-G

Variant names:

• chr14-95107663-C-G
• rs886037692
• NM_177438.3:c.2749G>C

Variant summary

Our verdict is Uncertain significance. The variant received 0 ACMG points: 2P and 2B. PM2 BP4_Moderate

The NM_177438.3(DICER1):​c.2749G>C​(p.Glu917Gln) variant causes a missense change. The variant was absent in control chromosomes in GnomAD project. In-silico tool predicts a benign outcome for this variant. 14/22 in silico tools predict a benign outcome for this variant. No clinical diagnostic laboratories have submitted clinical-significance assessments for this variant to ClinVar. Synonymous variant affecting the same amino acid position (i.e. E917E) has been classified as Likely benign.

• Frequency: Genomes: not found (cov: 32)
• Consequence: DICER1 NM_177438.3 missense
• Clinical Significance: Not reported in ClinVar
• Conservation: PhyloP100: 6.08
• 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 0 ACMG points.

• PM2: Very rare variant in population databases, with high coverage
• BP4: Computational evidence support a benign effect (MetaRNN=0.13274264).

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_177438.3. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DICER1	NM_177438.3	MANE Select	c.2749G>C	p.Glu917Gln	missense	Exon 17 of 27	NP_803187.1
	DICER1	NM_001271282.3		c.2749G>C	p.Glu917Gln	missense	Exon 17 of 27	NP_001258211.1
	DICER1	NM_001291628.2		c.2749G>C	p.Glu917Gln	missense	Exon 17 of 27	NP_001278557.1

Ensembl Transcripts

Selected	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DICER1	ENST00000343455.8	TSL:1 MANE Select	c.2749G>C	p.Glu917Gln	missense	Exon 17 of 27	ENSP00000343745.3
	DICER1	ENST00000393063.6	TSL:1	c.2749G>C	p.Glu917Gln	missense	Exon 19 of 29	ENSP00000376783.1
	DICER1	ENST00000527414.5	TSL:1	c.2749G>C	p.Glu917Gln	missense	Exon 17 of 27	ENSP00000435681.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD4 exome Cov.: 32

GnomAD4 genome Cov.: 32

ClinVar

Not reported in ClinVar

Computational scores

Source: dbNSFP v4.9

Name	Calibrated prediction	Score	Prediction
AlphaMissense	Benign	0.097
BayesDel_addAF	Benign	-0.11	T
BayesDel_noAF	Benign	-0.39
CADD	Benign	21
DANN	Benign	0.92
DEOGEN2	Benign	0.11	T
Eigen	Benign	-0.10
Eigen_PC	Benign	0.17
FATHMM_MKL	Uncertain	0.96	D
LIST_S2	Uncertain	0.91	D
M_CAP	Benign	0.0069	T
MetaRNN	Benign	0.13	T
MetaSVM	Benign	-1.0	T
MutationAssessor	Benign	-0.14	N
PhyloP100		6.1
PrimateAI	Uncertain	0.61	T
PROVEAN	Benign	0.20	N
REVEL	Benign	0.10
Sift	Benign	0.40	T
Sift4G	Benign	0.60	T
Polyphen		0.027	B
Vest4		0.20
MutPred		0.45		Loss of ubiquitination at K913 (P = 0.0283)
MVP		0.29
MPC		0.54
ClinPred		0.88	D
GERP RS		5.9
Varity_R		0.46
gMVP		0.34
Mutation Taster		=62/38	polymorphism

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

Other links and lift over

dbSNP: rs886037692; hg19: chr14-95574000;