rs373011563
Variant summary
Our verdict is Benign. The variant received -7 ACMG points: 0P and 7B. BP4_ModerateBP6BS2
The NM_022114.4(PRDM16):c.1574G>A(p.Arg525Gln) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000125 in 1,611,412 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 Conflicting classifications of pathogenicity (no stars). Another variant affecting the same amino acid position, but resulting in a different missense (i.e. R525W) has been classified as Uncertain significance.
Frequency
Consequence
NM_022114.4 missense
Scores
Clinical Significance
Conservation
Publications
- left ventricular noncompaction 8Inheritance: AD Classification: MODERATE, LIMITED Submitted by: Ambry Genetics, Illumina, Labcorp Genetics (formerly Invitae)
- familial isolated dilated cardiomyopathyInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- left ventricular noncompactionInheritance: AD Classification: SUPPORTIVE Submitted by: Orphanet
- dilated cardiomyopathyInheritance: AD Classification: LIMITED Submitted by: ClinGen
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ACMG classification
Our verdict: Benign. The variant received -7 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.000132 AC: 20AN: 151898Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.000138 AC: 34AN: 246438 AF XY: 0.000119 show subpopulations
GnomAD4 exome AF: 0.000125 AC: 182AN: 1459514Hom.: 0 Cov.: 32 AF XY: 0.000118 AC XY: 86AN XY: 726194 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000132 AC: 20AN: 151898Hom.: 0 Cov.: 33 AF XY: 0.000121 AC XY: 9AN XY: 74158 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not specified Uncertain:1Benign:1
The p.Arg525Gln variant in PRDM16 has not been previously reported in individual s with cardiomyopathy, but has been identified in 6/8492 East Asian chromosomes by the Exome Aggregation Consortium (ExAC, http://exac.broadinstitute.org; dbSNP rs373011563). Computational prediction tools and conservation analysis suggest that the p.Arg525Gln variant may impact the protein, though this information is not predictive enough to determine pathogenicity. In summary, the clinical signi ficance of the p.Arg525Gln variant is uncertain. -
Variant summary: PRDM16 c.1574G>A (p.Arg525Gln) results in a conservative amino acid change in the encoded protein sequence. 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. The variant allele was found at a frequency of 0.00014 in 246438 control chromosomes, predominantly at a frequency of 0.00067 within the East Asian subpopulation in the gnomAD database. The observed variant frequency within East Asian control individuals in the gnomAD database is approximately 13.4 fold of the estimated maximal expected allele frequency for a pathogenic variant in PRDM16 causing Cardiomyopathy phenotype (5e-05). c.1574G>A has been observed in individual(s) affected with Cardiomyopathy (Burstein_2021). These report(s) do not provide unequivocal conclusions about association of the variant with Cardiomyopathy. To our knowledge, no experimental evidence demonstrating an impact on protein function has been reported. The following publication has been ascertained in the context of this evaluation (PMID: 32746448). ClinVar contains an entry for this variant (Variation ID: 229158). Based on the evidence outlined above, the variant was classified as likely benign. -
not provided Uncertain:1Benign:1
PRDM16: BS1 -
Has not been previously published as pathogenic or benign to our knowledge; Reported in ClinVar as a variant of uncertain significance (ClinVar Variant ID# 229158; Landrum et al., 2016); In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function -
Inborn genetic diseases Uncertain:1
The c.1574G>A (p.R525Q) alteration is located in exon 9 (coding exon 9) of the PRDM16 gene. This alteration results from a G to A substitution at nucleotide position 1574, causing the arginine (R) at amino acid position 525 to be replaced by a glutamine (Q). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
Left ventricular noncompaction 8 Uncertain:1
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 525 of the PRDM16 protein (p.Arg525Gln). This variant is present in population databases (rs373011563, gnomAD 0.07%), and has an allele count higher than expected for a pathogenic variant. This missense change has been observed in individual(s) with dilated cardiomyopathy (PMID: 32746448). ClinVar contains an entry for this variant (Variation ID: 229158). An algorithm developed to predict the effect of missense changes on protein structure and function (PolyPhen-2) suggests 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:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at