rs766732310

Variant names:

• chr14-95103383-G-A
• rs766732310
• NM_177438.3:c.4013C>T

Your query was ambiguous. Multiple possible variants found:

• chr14-95103383-G-A
• chr14-95103383-G-C

Variant summary

Our verdict is Likely benign. The variant received -4 ACMG points: 0P and 4B. BS2

The NM_030621.4(DICER1):​c.4013C>T​(p.Ala1338Val) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000041 in 1,461,876 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. A1338G) has been classified as Uncertain significance.

• Frequency:
  • Genomes: not found (cov: 32)
  • Exomes 𝑓: 0.0000041 (0 hom.)
• Consequence: DICER1 NM_030621.4 missense
• Clinical Significance: Uncertain significance criteria provided, multiple submitters, no conflicts U:2
• Conservation: PhyloP100: 9.96
• Publications: 2 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: Likely_benign. The variant received -4 ACMG points.

• BS2: High AC in GnomAdExome4 at 6 AD,Unknown gene.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_030621.4. 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.4013C>T	p.Ala1338Val	missense	Exon 21 of 27	NP_803187.1
	DICER1	NM_001271282.3		c.4013C>T	p.Ala1338Val	missense	Exon 21 of 27	NP_001258211.1
	DICER1	NM_001291628.2		c.4013C>T	p.Ala1338Val	missense	Exon 21 of 27	NP_001278557.1

Ensembl Transcripts

Sel.	Gene	Transcript	Tags	HGVSc	HGVSp	Effect	Exon Rank	Protein	UniProt
	DICER1	ENST00000343455.8	TSL:1 MANE Select	c.4013C>T	p.Ala1338Val	missense	Exon 21 of 27	ENSP00000343745.3
	DICER1	ENST00000393063.6	TSL:1	c.4013C>T	p.Ala1338Val	missense	Exon 23 of 29	ENSP00000376783.1
	DICER1	ENST00000527414.5	TSL:1	c.4013C>T	p.Ala1338Val	missense	Exon 21 of 27	ENSP00000435681.1

Frequencies

GnomAD3 genomes Cov.: 32

GnomAD2 exomes AF: 0.00000797 AC: 2 AN: 251032 AF XY: 0.0000147

Gnomad AFR exome AF: 0.00

Gnomad AMR exome AF: 0.00

Gnomad ASJ exome AF: 0.00

Gnomad EAS exome AF: 0.00

Gnomad FIN exome AF: 0.00

Gnomad NFE exome AF: 0.0000176

Gnomad OTH exome AF: 0.00

GnomAD4 exome AF: 0.00000410 AC: 6 AN: 1461876 Hom.: 0 Cov.: 32 AF XY: 0.00000688 AC XY: 5 AN XY: 727238

African (AFR) AF: 0.00 AC: 0 AN: 33480

American (AMR) AF: 0.00 AC: 0 AN: 44724

Ashkenazi Jewish (ASJ) AF: 0.00 AC: 0 AN: 26136

East Asian (EAS) AF: 0.00 AC: 0 AN: 39700

South Asian (SAS) AF: 0.00 AC: 0 AN: 86258

European-Finnish (FIN) AF: 0.00 AC: 0 AN: 53418

Middle Eastern (MID) AF: 0.00 AC: 0 AN: 5768

European-Non Finnish (NFE) AF: 0.00000450 AC: 5 AN: 1111996

Other (OTH) AF: 0.0000166 AC: 1 AN: 60396

GnomAD4 genome Cov.: 32

Alfa AF: 0.00 Hom.: 0

ExAC AF: 0.0000165 AC: 2

ClinVar

ClinVar submissions as Germline

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	Pathogenic	0.76
BayesDel_addAF	Pathogenic	0.28	D
BayesDel_noAF	Pathogenic	0.18
CADD	Uncertain	24
DANN	Benign	0.50
DEOGEN2	Benign	0.20	T
Eigen	Uncertain	0.24
Eigen_PC	Uncertain	0.41
FATHMM_MKL	Pathogenic	1.0	D
LIST_S2	Pathogenic	0.98	D
M_CAP	Benign	0.062	D
MetaRNN	Uncertain	0.57	D
MetaSVM	Benign	-0.59	T
MutationAssessor	Benign	1.3	L
PhyloP100		10
PrimateAI	Pathogenic	0.85	D
PROVEAN	Benign	1.1	N
REVEL	Uncertain	0.45
Sift	Benign	1.0	T
Sift4G	Benign	1.0	T
Polyphen		0.14	B
Vest4		0.79
MutPred		0.56		Loss of disorder (P = 0.119)
MVP		0.84
MPC		1.2
ClinPred		0.90	D
GERP RS		5.6
Varity_R		0.29
gMVP		0.56
Mutation Taster		=21/79	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: rs766732310; hg19: chr14-95569720;