rs746199700

Variant summary

Our verdict is Likely benign. The variant received -1 ACMG points: 0P and 1B. BP4

The NM_153026.3(PRICKLE1):​c.2155C>T​(p.Arg719Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.0000136 in 1,613,866 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 Uncertain significance (★). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R719L) has been classified as Uncertain significance.

Frequency

Genomes: 𝑓 0.0000066 ( 0 hom., cov: 32)
Exomes 𝑓: 0.000014 ( 0 hom. )

Consequence

PRICKLE1
NM_153026.3 missense

Scores

1
11
7

Clinical Significance

Uncertain significance criteria provided, single submitter U:1

Conservation

PhyloP100: 2.71

Publications

0 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

Genome browser will be placed here

ACMG classification

Classification was made for transcript

Our verdict: Likely_benign. The variant received -1 ACMG points.

BP4
Computational evidence support a benign effect (MetaRNN=0.39636552).

Transcripts

RefSeq

Gene Transcript HGVSc HGVSp Effect Exon rank MANE Protein UniProt
PRICKLE1NM_153026.3 linkc.2155C>T p.Arg719Trp missense_variant Exon 8 of 8 ENST00000345127.9 NP_694571.2 Q96MT3A0A024R0W7

Ensembl

Gene Transcript HGVSc HGVSp Effect Exon rank TSL MANE Protein Appris UniProt
PRICKLE1ENST00000345127.9 linkc.2155C>T p.Arg719Trp missense_variant Exon 8 of 8 1 NM_153026.3 ENSP00000345064.3 Q96MT3

Frequencies

GnomAD3 genomes
AF:
0.00000658
AC:
1
AN:
152044
Hom.:
0
Cov.:
32
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:
0.0000147
Gnomad OTH
AF:
0.00
GnomAD2 exomes
AF:
0.0000199
AC:
5
AN:
251254
AF XY:
0.0000221
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:
0.00000881
Gnomad OTH exome
AF:
0.00
GnomAD4 exome
AF:
0.0000144
AC:
21
AN:
1461822
Hom.:
0
Cov.:
34
AF XY:
0.0000193
AC XY:
14
AN XY:
727214
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
33476
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:
0.000116
AC:
10
AN:
86256
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
53418
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
5720
European-Non Finnish (NFE)
AF:
0.00000989
AC:
11
AN:
1112004
Other (OTH)
AF:
0.00
AC:
0
AN:
60388
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.494
Heterozygous variant carriers
0
2
4
5
7
9
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance

Age Distribution

Exome Het
Variant carriers
0
2
4
6
8
10
<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
AF:
0.00000658
AC:
1
AN:
152044
Hom.:
0
Cov.:
32
AF XY:
0.00
AC XY:
0
AN XY:
74254
show subpopulations
African (AFR)
AF:
0.00
AC:
0
AN:
41380
American (AMR)
AF:
0.00
AC:
0
AN:
15256
Ashkenazi Jewish (ASJ)
AF:
0.00
AC:
0
AN:
3470
East Asian (EAS)
AF:
0.00
AC:
0
AN:
5196
South Asian (SAS)
AF:
0.00
AC:
0
AN:
4814
European-Finnish (FIN)
AF:
0.00
AC:
0
AN:
10600
Middle Eastern (MID)
AF:
0.00
AC:
0
AN:
316
European-Non Finnish (NFE)
AF:
0.0000147
AC:
1
AN:
68012
Other (OTH)
AF:
0.00
AC:
0
AN:
2088
Allele Balance Distribution
Red line indicates average allele balance
Average allele balance: 0.525
Heterozygous variant carriers
0
0
1
1
2
2
0.00
0.20
0.40
0.60
0.80
0.95
Allele balance
Alfa
AF:
0.0000772
Hom.:
0
ExAC
AF:
0.0000165
AC:
2

ClinVar

Significance: Uncertain significance
Submissions summary: Uncertain:1
Revision: criteria provided, single submitter
LINK: link

Submissions by phenotype

Epilepsy, progressive myoclonic, 1B Uncertain:1
Dec 16, 2024
Labcorp Genetics (formerly Invitae), Labcorp
Significance:Uncertain significance
Review Status:criteria provided, single submitter
Collection Method:clinical testing

This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 719 of the PRICKLE1 protein (p.Arg719Trp). This variant is present in population databases (rs746199700, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with PRICKLE1-related conditions. ClinVar contains an entry for this variant (Variation ID: 206677). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt PRICKLE1 protein function with a negative predictive value of 80%. 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
Benign
0.10
BayesDel_addAF
Benign
0.0082
T
BayesDel_noAF
Uncertain
0.010
CADD
Uncertain
25
DANN
Pathogenic
1.0
DEOGEN2
Uncertain
0.43
T;T;T;T;T;T;T;T;T;T
Eigen
Uncertain
0.52
Eigen_PC
Uncertain
0.58
FATHMM_MKL
Uncertain
0.96
D
LIST_S2
Uncertain
0.95
.;.;.;.;.;.;.;.;.;D
M_CAP
Benign
0.060
D
MetaRNN
Benign
0.40
T;T;T;T;T;T;T;T;T;T
MetaSVM
Uncertain
0.43
D
MutationAssessor
Benign
1.8
L;L;L;L;L;L;L;L;L;L
PhyloP100
2.7
PrimateAI
Benign
0.29
T
PROVEAN
Uncertain
-2.8
D;.;D;.;D;.;.;D;.;D
REVEL
Uncertain
0.44
Sift
Uncertain
0.0010
D;.;D;.;D;.;.;D;.;D
Sift4G
Uncertain
0.0050
D;.;D;.;D;.;.;D;.;D
Polyphen
0.99
D;D;D;D;D;D;D;D;D;D
Vest4
0.36
MVP
0.75
MPC
0.80
ClinPred
0.61
D
GERP RS
5.6
Varity_R
0.22
gMVP
0.44
Mutation Taster
=94/6
polymorphism

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

Other links and lift over

dbSNP: rs746199700; hg19: chr12-42853952; API