rs368280072
Variant summary
Our verdict is Uncertain significance. The variant received 3 ACMG points: 3P and 0B. PM2PP3
The NM_152383.5(DIS3L2):c.2381G>A(p.Arg794His) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,238 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts a pathogenic 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. R794G) has been classified as Uncertain significance.
Frequency
Consequence
NM_152383.5 missense
Scores
Clinical Significance
Conservation
Publications
- Perlman syndromeInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: ClinGen, Orphanet, Labcorp Genetics (formerly Invitae), G2P
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ACMG classification
Our verdict: Uncertain_significance. The variant received 3 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| DIS3L2 | NM_152383.5 | c.2381G>A | p.Arg794His | missense_variant | Exon 19 of 21 | ENST00000325385.12 | NP_689596.4 | |
| DIS3L2 | NR_046476.2 | n.2454G>A | non_coding_transcript_exon_variant | Exon 19 of 21 | ||||
| DIS3L2 | NR_046477.2 | n.2433G>A | non_coding_transcript_exon_variant | Exon 18 of 19 | ||||
| DIS3L2 | NM_001257281.2 | c.1582-8623G>A | intron_variant | Intron 13 of 13 | NP_001244210.1 |
Ensembl
Frequencies
GnomAD3 genomes AF: 0.00000657 AC: 1AN: 152238Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.0000214 AC: 5AN: 233814 AF XY: 0.0000157 show subpopulations
GnomAD4 exome Data not reliable, filtered out with message: AS_VQSR AF: 0.00000344 AC: 5AN: 1453260Hom.: 0 Cov.: 33 AF XY: 0.00000415 AC XY: 3AN XY: 722402 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.00000657 AC: 1AN: 152238Hom.: 0 Cov.: 33 AF XY: 0.0000134 AC XY: 1AN XY: 74372 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
Perlman syndrome Uncertain:2
The c.2381G>A variant creates a missense change (p.Arg794His) at residue 794 of the DIS3L2 protein. It is observed in heterozygous form, but extremely rare, in population databases including gnomAD (6/802,749) and All of Us (4/414,826). In silico tools are conflicting about the effect this variant has on the encoded protein (10/25 say damaging); most established disease-causing alterations in this gene to date are loss-of-function variants. This variant was compound-heterozygous with a nonsense change (c.127C>T) in two siblings with Perlman syndrome who underwent trio exome sequencing. We interpret it as a variant of uncertain significance. -
This sequence change replaces arginine, which is basic and polar, with histidine, which is basic and polar, at codon 794 of the DIS3L2 protein (p.Arg794His). The frequency data for this variant in the population databases is considered unreliable, as metrics indicate poor data quality at this position in the gnomAD database. This variant has not been reported in the literature in individuals affected with DIS3L2-related conditions. ClinVar contains an entry for this variant (Variation ID: 566831). 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 expected to disrupt DIS3L2 protein function. 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