Genetic Variant PRICKLE2:c.*4354C>G (chr3-64094697-G-C) – ACMG Classification: Benign (-10 pts)

Variant summary

Our verdict is Benign. Variant got -10 ACMG points: 0P and 10B. BP4_StrongBP6_ModerateBS2

The NM_198859.4(PRICKLE2):c.*4354C>G variant causes a 3 prime UTR change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000184 in 152,304 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. Variant has been reported in ClinVar as Likely benign (★).

Frequency

Genomes: 𝑓 0.00018 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0 ( 0 hom. )

Failed GnomAD Quality Control

Consequence

PRICKLE2
NM_198859.4 3_prime_UTR

Scores

Clinical Significance

Likely benign criteria provided, single submitter B:1

Conservation

PhyloP100: 0.760

Variant links:

Genes affected

PRICKLE2 (HGNC:20340): (prickle planar cell polarity protein 2) This gene encodes a homolog of Drosophila prickle. The exact function of this gene is not known, however, studies in mice suggest that it may be involved in seizure prevention. Mutations in this gene are associated with progressive myoclonic epilepsy type 5. [provided by RefSeq, Dec 2011]

PRICKLE2 links:

PRICKLE2-AS1 (HGNC:):

PRICKLE2-AS1 links:

PRICKLE2-AS1 (HGNC:40916): (PRICKLE2 antisense RNA 1)

PRICKLE2-AS1 links:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Benign. Variant got -10 ACMG points.

BP4

Computational evidence support a benign effect (BayesDel_noAF=-0.81).

BP6

Variant 3-64094697-G-C is Benign according to our data. Variant chr3-64094697-G-C is described in ClinVar as [Likely_benign]. Clinvar id is 901207.Status of the report is criteria_provided_single_submitter, 1 stars.

BS2

High AC in GnomAd4 at 28 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	Effect	Exon rank	MANE	Protein	UniProt
PRICKLE2	NM_198859.4 link	c.*4354C>G	3_prime_UTR_variant	Exon 8 of 8	ENST00000638394.2	NP_942559.1	Q7Z3G6A1LQZ3
PRICKLE2	NM_001370528.1 link	c.*4354C>G	3_prime_UTR_variant	Exon 8 of 8		NP_001357457.1
PRICKLE2-AS1	NR_045697.1 link	n.199-397G>C	intron_variant	Intron 1 of 2

Ensembl

Gene	Transcript	HGVSc	Effect	Exon rank	TSL	MANE	Protein	UniProt
PRICKLE2	ENST00000638394 link	c.*4354C>G	3_prime_UTR_variant	Exon 8 of 8	1	NM_198859.4	ENSP00000492363.1	Q7Z3G6
PRICKLE2-AS1	ENST00000482609.1 link	n.199-397G>C	intron_variant	Intron 1 of 2	1
PRICKLE2	ENST00000295902 link	c.*4354C>G	3_prime_UTR_variant	Exon 9 of 9	5		ENSP00000295902.7	A0A1X7SBR1
PRICKLE2	ENST00000564377 link	c.*4354C>G	3_prime_UTR_variant	Exon 8 of 8	5		ENSP00000455004.2	Q7Z3G6

Frequencies

GnomAD3 genomes

AF:

0.000184

AC:

AN:

152186

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.0000241

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.000916

Gnomad ASJ

AF:

0.00

Gnomad EAS

AF:

0.00

Gnomad SAS

AF:

0.00

Gnomad FIN

AF:

0.00

Gnomad MID

AF:

0.00

Gnomad NFE

AF:

0.000176

Gnomad OTH

AF:

0.000478

GnomAD4 exome

Data not reliable, filtered out with message: AC0

AF:

0.00

AC:

AN:

356

Hom.:

Cov.:

AF XY:

0.00

AC XY:

AN XY:

220

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.000184

AC:

AN:

152304

Hom.:

Cov.:

AF XY:

0.000228

AC XY:

AN XY:

74464

show subpopulations

Gnomad4 AFR

AF:

0.0000241

Gnomad4 AMR

AF:

0.000915

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.000176

Gnomad4 OTH

AF:

0.000473

Alfa

AF:

0.000108

Hom.:

Bravo

AF:

0.000257

Asia WGS

AF:

0.000289

AC:

AN:

3478

ClinVar

Significance: Likely benign

Submissions summary: Benign:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Progressive myoclonic epilepsy

Benign:1

Jan 12, 2018

Illumina Laboratory Services, Illumina

Significance: Likely benign

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score and internal cut-off values, a variant classified as likely benign is not then subjected to further curation. The score for this variant resulted in a classification of likely benign for this disease. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

BayesDel_noAF

Benign

-0.81

CADD

Benign

8.8

DANN

Benign

0.67

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

Publications

LitVar

Below is the list of publications found by LitVar. It may be empty.

Variant summary

Frequency

Consequence

Scores

Clinical Significance

Conservation

ACMG classification

Transcripts

RefSeq

Ensembl

Frequencies

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

LitVar

Other links and lift over