Genetic Variant DIS3L2:c.2394+7G>A (chr2-232334742-G-A) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. The variant received -10 ACMG points: 2P and 12B. PM2BP4_StrongBP6_Very_Strong

The NM_152383.5(DIS3L2):c.2394+7G>A variant causes a splice region, intron 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. 3/3 splice prediction tools predict no significant impact on normal splicing. Variant has been reported in ClinVar as Likely benign (★★).

Frequency

Genomes: not found (cov: 33)

Exomes 𝑓: 0.0000014 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

DIS3L2
NM_152383.5 splice_region, intron

Scores

Splicing: ADA: 0.00008813

Clinical Significance

Likely benign criteria provided, multiple submitters, no conflicts B:2

Conservation

PhyloP100: -0.809

Publications

0 publications found

Variant links:

Genes affected

DIS3L2 (HGNC:28648): (DIS3 like 3'-5' exoribonuclease 2) The protein encoded by this gene is similar in sequence to 3'/5' exonucleolytic subunits of the RNA exosome. The exosome is a large multimeric ribonucleotide complex responsible for degrading various RNA substrates. Several transcript variants, some protein-coding and some not, have been found for this gene. [provided by RefSeq, Mar 2012]

DIS3L2 Gene-Disease associations (from GenCC):

Perlman syndrome
Inheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), G2P

DIS3L2 links:

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ACMG classification

Classification was made for transcript

Our verdict: Benign. The variant received -10 ACMG points.

PM2

Very rare variant in population databases, with high coverage;

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.89).

BP6

Variant 2-232334742-G-A is Benign according to our data. Variant chr2-232334742-G-A is described in ClinVar as Likely_benign. ClinVar VariationId is 463104.Status of the report is criteria_provided_multiple_submitters_no_conflicts, 2 stars.

Variant Effect in Transcripts

ACMG analysis was done for transcript: NM_152383.5. You can select a different transcript below to see updated ACMG assignments.

RefSeq Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
DIS3L2	NM_152383.5	MANE Select	c.2394+7G>A	splice_region intron	N/A	NP_689596.4
DIS3L2	NM_001257281.2		c.1582-8603G>A	intron	N/A	NP_001244210.1
DIS3L2	NR_046476.2		n.2467+7G>A	splice_region intron	N/A

Ensembl Transcripts

Gene	Transcript	Tags	HGVSc	Effect	Exon Rank	Protein
DIS3L2	ENST00000325385.12	TSL:5 MANE Select	c.2394+7G>A	splice_region intron	N/A	ENSP00000315569.7
DIS3L2	ENST00000390005.9	TSL:1	n.*461+7G>A	splice_region intron	N/A	ENSP00000374655.5
DIS3L2	ENST00000445090.5	TSL:1	n.*1550+7G>A	splice_region intron	N/A	ENSP00000388999.1

Frequencies

GnomAD3 genomes

Cov.:

GnomAD4 exome

Data not reliable, filtered out with message: AS_VQSR

AF:

0.00000138

AC:

AN:

1446382

Hom.:

Cov.:

AF XY:

0.00000278

AC XY:

AN XY:

718328

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33026

American (AMR)

AF:

0.00

AC:

AN:

43292

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

25892

East Asian (EAS)

AF:

0.0000259

AC:

AN:

38566

South Asian (SAS)

AF:

0.00

AC:

AN:

84108

European-Finnish (FIN)

AF:

0.00

AC:

AN:

51474

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5024

European-Non Finnish (NFE)

AF:

9.05e-7

AC:

AN:

1105276

Other (OTH)

AF:

0.00

AC:

AN:

59724

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.600

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

GnomAD4 genome

Cov.:

ClinVar

Significance: Likely benign

Submissions summary: Benign:2

Revision: criteria provided, multiple submitters, no conflicts

LINK: link

Submissions by phenotype

not specified

Benign:1

May 26, 2021

Genetic Services Laboratory, University of Chicago

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Perlman syndrome

Benign:1

Jul 07, 2022

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Likely benign

Review Status:criteria provided, single submitter

Collection Method:clinical testing

Computational scores

Source: dbNSFP v4.9

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.89

CADD

Benign

0.75

(source)

DANN

Benign

0.94

PhyloP100

-0.81

PromoterAI

0.061

Neutral

(source)

RBP_binding_hub_radar

0.0

RBP_regulation_power_radar

1.0

Splicing

Name

Calibrated prediction

Score

Prediction

dbscSNV1_ADA

Benign

0.000088

dbscSNV1_RF

Benign

0.0

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

Publications

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Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

Publications

ACMG classification

Variant Effect in Transcripts

RefSeq Transcripts

Ensembl Transcripts

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over