rs771717707

Variant names:

Variant summary

Our verdict is Uncertain significance. The variant received 2 ACMG points: 2P and 0B. PP3_Moderate

The NM_153026.3(PRICKLE1):c.509A>G(p.Tyr170Cys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000479 in 1,461,884 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★).

Frequency

Genomes: not found (cov: 32)

Exomes 𝑓: 0.0000048 ( 0 hom. )

Consequence

PRICKLE1
NM_153026.3 missense

Scores

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 7.67

Publications

1 publications found

Variant links:

Genes affected

PRICKLE1 (HGNC:17019): (prickle planar cell polarity protein 1) This gene encodes a nuclear receptor that may be a negative regulator of the Wnt/beta-catenin signaling pathway. The encoded protein localizes to the nuclear membrane and has been implicated in the nuclear trafficking of the transcription repressors REST/NRSF and REST4. Mutations in this gene have been linked to progressive myoclonus epilepsy. Alternate splicing results in multiple transcript variants. A pseudogene of this gene is found on chromosome 3. [provided by RefSeq, Sep 2009]

PRICKLE1 Gene-Disease associations (from GenCC):

epilepsy, progressive myoclonic, 1B
Inheritance: AR Classification: STRONG Submitted by: Labcorp Genetics (formerly Invitae)
Unverricht-Lundborg syndrome
Inheritance: AR Classification: SUPPORTIVE Submitted by: Orphanet
progressive myoclonus epilepsy
Inheritance: AR Classification: LIMITED Submitted by: ClinGen
epilepsy
Inheritance: AD Classification: NO_KNOWN Submitted by: ClinGen

PRICKLE1 links:

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Uncertain_significance. The variant received 2 ACMG points.

PP3

MetaRNN computational evidence supports a deleterious effect, 0.916

Transcripts

RefSeq

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	MANE	Protein	UniProt
PRICKLE1	NM_153026.3 link	c.509A>G	p.Tyr170Cys	missense_variant	Exon 5 of 8	ENST00000345127.9	NP_694571.2	Q96MT3A0A024R0W7

Ensembl

Gene	Transcript	HGVSc	HGVSp	Effect	Exon rank	TSL	MANE	Protein	Appris	UniProt
PRICKLE1	ENST00000345127.9 link	c.509A>G	p.Tyr170Cys	missense_variant	Exon 5 of 8	1	NM_153026.3	ENSP00000345064.3		Q96MT3

Frequencies

GnomAD3 genomes

Cov.:

GnomAD2 exomes

AF:

0.00000398

AC:

AN:

251420

AF XY:

0.00

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 FIN exome

AF:

0.00

Gnomad NFE exome

AF:

0.00

Gnomad OTH exome

AF:

0.00

GnomAD4 exome

AF:

0.00000479

AC:

AN:

1461884

Hom.:

Cov.:

AF XY:

0.00000688

AC XY:

AN XY:

727242

show subpopulations

African (AFR)

AF:

0.00

AC:

AN:

33480

American (AMR)

AF:

0.00

AC:

AN:

44722

Ashkenazi Jewish (ASJ)

AF:

0.00

AC:

AN:

26136

East Asian (EAS)

AF:

0.00

AC:

AN:

39700

South Asian (SAS)

AF:

0.0000116

AC:

AN:

86258

European-Finnish (FIN)

AF:

0.00

AC:

AN:

53420

Middle Eastern (MID)

AF:

0.00

AC:

AN:

5768

European-Non Finnish (NFE)

AF:

0.00000540

AC:

AN:

1112006

Other (OTH)

AF:

0.00

AC:

AN:

60394

Allele Balance Distribution

Red line indicates average allele balance

Average allele balance: 0.461

Heterozygous variant carriers

0.00

0.20

0.40

0.60

0.80

0.95

Allele balance

Age Distribution

Exome Het

Variant carriers

<30

30-35

35-40

40-45

45-50

50-55

55-60

60-65

65-70

70-75

75-80

>80

Age

GnomAD4 genome

Cov.:

Alfa

AF:

0.00

Hom.:

Bravo

AF:

0.00000378

ExAC

AF:

0.00000824

AC:

ClinVar

Significance: Uncertain significance

Submissions summary: Uncertain:1

Revision: criteria provided, single submitter

LINK: link

Submissions by phenotype

Epilepsy, progressive myoclonic, 1B

Uncertain:1

Sep 01, 2021

Labcorp Genetics (formerly Invitae), Labcorp

Significance:Uncertain significance

Review Status:criteria provided, single submitter

Collection Method:clinical testing

This sequence change replaces tyrosine with cysteine at codon 170 of the PRICKLE1 protein (p.Tyr170Cys). The tyrosine residue is highly conserved and there is a large physicochemical difference between tyrosine and cysteine. This variant is present in population databases (rs771717707, ExAC 0.001%). This variant has not been reported in the literature in individuals affected with PRICKLE1-related conditions. Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be disruptive. 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

0.89

BayesDel_addAF

Pathogenic

0.37

BayesDel_noAF

Pathogenic

0.39

CADD

Pathogenic

(source)

DANN

Uncertain

1.0

DEOGEN2

Uncertain

0.67

D;D;D;D;D;D;D;D;D;D

Eigen

Pathogenic

0.79

Eigen_PC

Pathogenic

0.78

FATHMM_MKL

Uncertain

0.95

LIST_S2

Uncertain

0.97

.;.;.;.;.;.;.;.;.;D

M_CAP

Uncertain

0.22

MetaRNN

Pathogenic

0.92

D;D;D;D;D;D;D;D;D;D

MetaSVM

Uncertain

0.66

MutationAssessor

Pathogenic

3.1

M;M;M;M;M;M;M;M;M;M

PhyloP100

7.7

PrimateAI

Pathogenic

0.91

PROVEAN

Pathogenic

-8.7

D;.;D;.;D;.;.;D;.;D

REVEL

Pathogenic

0.88

Sift

Uncertain

0.0090

D;.;D;.;D;.;.;D;.;D

Sift4G

Pathogenic

0.0

D;.;D;.;D;.;.;D;.;D

Polyphen

1.0

D;D;D;D;D;D;D;D;D;D

Vest4

0.99

MutPred

0.66

Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);Loss of catalytic residue at I169 (P = 0.0763);

MVP

0.94

MPC

1.3

ClinPred

0.99

GERP RS

5.6

Varity_R

0.90

gMVP

0.82

Mutation Taster

=31/69

disease causing

(source)

Splicing

Name

Calibrated prediction

Score

Prediction

SpliceAI score (max)

0.090

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

Transcripts

RefSeq

Ensembl

Frequencies

Age Distribution

ClinVar

Submissions by phenotype

Computational scores

Splicing

Publications

Other links and lift over