12-42464812-A-G
Variant summary
Our verdict is Uncertain significance. Variant got 0 ACMG points: 0P and 0B.
The NM_153026.3(PRICKLE1):c.1222T>C(p.Trp408Arg) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000233 in 1,613,942 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_153026.3 missense
Scores
Clinical Significance
Conservation
Genome browser will be placed here
ACMG classification
Verdict is Uncertain_significance. Variant got 0 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
PRICKLE1 | NM_153026.3 | c.1222T>C | p.Trp408Arg | missense_variant | Exon 7 of 8 | ENST00000345127.9 | NP_694571.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000145 AC: 22AN: 152082Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000147 AC: 37AN: 251374Hom.: 0 AF XY: 0.000169 AC XY: 23AN XY: 135866
GnomAD4 exome AF: 0.000242 AC: 354AN: 1461860Hom.: 0 Cov.: 32 AF XY: 0.000237 AC XY: 172AN XY: 727234
GnomAD4 genome AF: 0.000145 AC: 22AN: 152082Hom.: 0 Cov.: 32 AF XY: 0.000215 AC XY: 16AN XY: 74288
ClinVar
Submissions by phenotype
Epilepsy, progressive myoclonic, 1B Uncertain:2
- -
This sequence change replaces tryptophan, which is neutral and slightly polar, with arginine, which is basic and polar, at codon 408 of the PRICKLE1 protein (p.Trp408Arg). This variant is present in population databases (rs376384105, gnomAD 0.03%). 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: 206666). Advanced modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) performed at Invitae 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. -
not provided Uncertain:2
p.Trp408Arg (TGG>CGG): c.1222 T>C in exon 7 of the PRICKLE1 gene (NM_153026.2). The Trp408Arg missense change has not been published as a mutation, nor has it been reported as a benign polymorphism to our knowledge. The amino acid substitution is non-conservative as an uncharged, non-polar Tryptophan amino acid residue is replaced by a positively charged, polar Arginine residue. Several in-silico algorithms predict Trp408Arg may be damaging to the structure/function of the protein. However, it alters a position that is not well conserved and to our knowledge, other missense mutations have not been previously reported in this region of the protein. Therefore, based on the currently available information, it is unclear whether Trp408Arg is a disease-causing mutation or a rare benign variant. The variant is found in EPILEPSY panel(s). -
- -
not specified Uncertain:1
Does not currently meet published gene-disease clinical validity criteria Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at