rs145860632
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BP4_Strong
The NM_153026.3(PRICKLE1):c.2269G>A(p.Glu757Lys) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.0000911 in 1,614,070 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 (★★).
Frequency
Consequence
NM_153026.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_benign. Variant got -4 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
PRICKLE1 | NM_153026.3 | c.2269G>A | p.Glu757Lys | missense_variant | Exon 8 of 8 | ENST00000345127.9 | NP_694571.2 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000335 AC: 51AN: 152058Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.000199 AC: 50AN: 251304Hom.: 0 AF XY: 0.000169 AC XY: 23AN XY: 135816
GnomAD4 exome AF: 0.0000657 AC: 96AN: 1461894Hom.: 0 Cov.: 34 AF XY: 0.0000509 AC XY: 37AN XY: 727248
GnomAD4 genome AF: 0.000335 AC: 51AN: 152176Hom.: 0 Cov.: 32 AF XY: 0.000296 AC XY: 22AN XY: 74398
ClinVar
Submissions by phenotype
Epilepsy, progressive myoclonic, 1B Uncertain:4
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PRICKLE1 NM_153026 exon 8 p.Glu757Lys (c.2269G>A): This variant has not been reported in the literature but is present in 0.1% (29/24020) of African alleles in the Genome Aggregation Database (http://gnomad.broadinstitute.org/rs145860632). This variant is present in ClinVar (Variation ID:206655). Evolutionary conservation and computational predictive tools suggest that this variant may not impact the protein. In summary, data on this variant is insufficient for disease classification. Therefore, the clinical significance of this variant is uncertain. -
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 757 of the PRICKLE1 protein (p.Glu757Lys). This variant is present in population databases (rs145860632, gnomAD 0.1%). 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: 206655). 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 tolerated. 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. -
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not provided Uncertain:2
A variant of uncertain significance has been identified in the PRICKLE1 gene. The E757K variant has not been published as a pathogenic variant, nor has it been reported as a benign variant to our knowledge. The E757K variant is observed in 14/10,404 (0.1%) alleles from individuals of African background (Lek et al., 2016; 1000 Genomes Consortium et al., 2015; Exome Variant Server). The E757K variant is a non-conservative amino acid substitution, which is likely to impact secondary protein structure as these residues differ in polarity, charge, size and/or other properties. However, this substitution occurs at a position that is not conserved. In silico analysis is inconsistent in its predictions as to whether or not the variant is damaging to the protein structure/function. Therefore, based on the currently available information, it is unclear whether this variant is a pathogenic variant or a rare benign variant. -
Available data are insufficient to determine the clinical significance of the variant at this time. The frequency of this variant in the general population is higher than would generally be expected for pathogenic variants in this gene. (http://gnomad.broadinstitute.org) Polyphen and MutationTaster predict this amino acid change may be benign. -
not specified Uncertain:1
The c.2269G>A (p.E757K) alteration is located in exon 8 (coding exon 7) of the PRICKLE1 gene. This alteration results from a G to A substitution at nucleotide position 2269, causing the glutamic acid (E) at amino acid position 757 to be replaced by a lysine (K). 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