rs746465588
Variant summary
Our verdict is Likely benign. The variant received -6 ACMG points: 0P and 6B. BP4_ModerateBS2
The NM_022114.4(PRDM16):c.3442G>A(p.Glu1148Lys) variant causes a missense change. The variant allele was found at a frequency of 0.000044 in 1,569,902 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a benign outcome for this variant. 13/22 in silico tools predict a benign outcome for this variant. Variant has been reported in ClinVar as Uncertain significance (★★). Synonymous variant affecting the same amino acid position (i.e. E1148E) has been classified as Likely benign.
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: Likely_benign. The variant received -6 ACMG points.
Transcripts
RefSeq
Ensembl
Frequencies
GnomAD3 genomes AF: 0.0000460 AC: 7AN: 152134Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000456 AC: 8AN: 175340 AF XY: 0.0000532 show subpopulations
GnomAD4 exome AF: 0.0000437 AC: 62AN: 1417768Hom.: 0 Cov.: 32 AF XY: 0.0000442 AC XY: 31AN XY: 701446 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.0000460 AC: 7AN: 152134Hom.: 0 Cov.: 33 AF XY: 0.0000269 AC XY: 2AN XY: 74326 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Inborn genetic diseases Uncertain:1
The c.3442G>A (p.E1148K) alteration is located in exon 15 (coding exon 15) of the PRDM16 gene. This alteration results from a G to A substitution at nucleotide position 3442, causing the glutamic acid (E) at amino acid position 1148 to be replaced by a lysine (K). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -
not provided Uncertain:1
Has not been previously published as pathogenic or benign to our knowledge; In silico analysis, which includes protein predictors and evolutionary conservation, supports that this variant does not alter protein structure/function; Reported in ClinVar as a variant of uncertain significance (ClinVar Variant ID# 406233; Landrum et al., 2016) -
Left ventricular noncompaction 8 Uncertain:1
This sequence change replaces glutamic acid, which is acidic and polar, with lysine, which is basic and polar, at codon 1148 of the PRDM16 protein (p.Glu1148Lys). This variant is present in population databases (rs746465588, gnomAD 0.01%). This variant has not been reported in the literature in individuals affected with PRDM16-related conditions. ClinVar contains an entry for this variant (Variation ID: 406233). 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 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at