chr3-64157317-C-T

Variant names:

Variant summary

Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2

The NM_198859.4(PRICKLE2):c.445G>A(p.Ala149Thr) variant causes a missense change. The variant allele was found at a frequency of 0.00000929 in 1,613,810 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: 𝑓 0.000033 ( 0 hom., cov: 33)

Exomes 𝑓: 0.0000068 ( 0 hom. )

Consequence

PRICKLE2
NM_198859.4 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 6.11

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:

Genome browser will be placed here

ACMG classification

Classification made for transcript

Verdict is Likely_benign. Variant got -4 ACMG points.

BS2

High AC in GnomAd4 at 5 AD gene.

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRICKLE2	NM_198859.4 link	c.445G>A	p.Ala149Thr	missense_variant	Exon 5 of 8	ENST00000638394.2	NP_942559.1	Q7Z3G6A1LQZ3
PRICKLE2	NM_001370528.1 link	c.445G>A	p.Ala149Thr	missense_variant	Exon 5 of 8		NP_001357457.1

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	UniProt
PRICKLE2	ENST00000638394.2 link	c.445G>A	p.Ala149Thr	missense_variant	Exon 5 of 8	1	NM_198859.4	ENSP00000492363.1	Q7Z3G6
PRICKLE2	ENST00000295902.11 link	c.613G>A	p.Ala205Thr	missense_variant	Exon 6 of 9	5		ENSP00000295902.7	A0A1X7SBR1
PRICKLE2	ENST00000564377.6 link	c.445G>A	p.Ala149Thr	missense_variant	Exon 5 of 8	5		ENSP00000455004.2	Q7Z3G6
PRICKLE2	ENST00000640303.1 link	n.1084G>A		non_coding_transcript_exon_variant	Exon 3 of 6	5

Frequencies

GnomAD3 genomes

AF:

0.0000328

AC:

AN:

152216

Hom.:

Cov.:

show subpopulations

Gnomad AFR

AF:

0.00

Gnomad AMI

AF:

0.00

Gnomad AMR

AF:

0.00

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:

0.0000735

Gnomad OTH

AF:

0.00

GnomAD3 exomes

AF:

0.0000200

AC:

AN:

250070

Hom.:

AF XY:

0.0000222

AC XY:

AN XY:

135364

show subpopulations

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 SAS exome

AF:

0.0000327

Gnomad FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.0000355

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000684

AC:

AN:

1461594

Hom.:

Cov.:

AF XY:

0.0000110

AC XY:

AN XY:

727086

show subpopulations

Gnomad4 AFR exome

AF:

0.00

Gnomad4 AMR exome

AF:

0.00

Gnomad4 ASJ exome

AF:

0.00

Gnomad4 EAS exome

AF:

0.00

Gnomad4 SAS exome

AF:

0.0000232

Gnomad4 FIN exome

AF:

0.00

Gnomad4 NFE exome

AF:

0.00000629

Gnomad4 OTH exome

AF:

0.00

GnomAD4 genome

AF:

0.0000328

AC:

AN:

152216

Hom.:

Cov.:

AF XY:

0.0000134

AC XY:

AN XY:

74370

show subpopulations

Gnomad4 AFR

AF:

0.00

Gnomad4 AMR

AF:

0.00

Gnomad4 ASJ

AF:

0.00

Gnomad4 EAS

AF:

0.00

Gnomad4 SAS

AF:

0.00

Gnomad4 FIN

AF:

0.00

Gnomad4 NFE

AF:

0.0000735

Gnomad4 OTH

AF:

0.00

Bravo

AF:

0.0000189

ExAC

AF:

0.0000247

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Progressive myoclonic epilepsy type 5

Uncertain:1

Feb 28, 2020

Labcorp Genetics (formerly Invitae), Labcorp

Significance: Uncertain significance

Review Status: criteria provided, single submitter

Collection Method: clinical testing

This variant is present in population databases (rs202025796, ExAC 0.01%). This sequence change replaces alanine with threonine at codon 149 of the PRICKLE2 protein (p.Ala149Thr). The alanine residue is highly conserved and there is a small physicochemical difference between alanine and threonine. This variant has not been reported in the literature in individuals with PRICKLE2-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function are either unavailable or do not agree on the potential impact of this missense change (SIFT: "Deleterious"; PolyPhen-2: "Benign"; Align-GVGD: "Class C55"). In summary, the available evidence is currently insufficient to determine the role of this variant in disease. Therefore, it has been classified as a Variant of Uncertain Significance. -

Computational scores

Source: dbNSFP v4.3

Name

Calibrated prediction

Score

Prediction

AlphaMissense

Pathogenic

0.61

BayesDel_addAF

Benign

-0.11

BayesDel_noAF

Benign

-0.22

CADD

Uncertain

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.76

D;D;.

Eigen

Benign

0.15

Eigen_PC

Benign

0.20

FATHMM_MKL

Uncertain

0.94

LIST_S2

Uncertain

0.96

.;D;D

M_CAP

Benign

0.077

MetaRNN

Uncertain

0.49

T;T;T

MetaSVM

Uncertain

0.20

MutationAssessor

Uncertain

2.1

M;M;.

PrimateAI

Uncertain

0.73

REVEL

Uncertain

0.46

Polyphen

0.38

B;B;.

MutPred

0.54

Loss of methylation at R148 (P = 0.0908);Loss of methylation at R148 (P = 0.0908);.;

MVP

0.85

MPC

0.49

ClinPred

0.79

GERP RS

5.6

Varity_R

0.23

gMVP

0.48

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