rs76718524
Variant summary
Our verdict is Uncertain significance. The variant received 0 ACMG points: 0P and 0B.
The NM_003560.4(PLA2G6):c.1381C>T(p.Arg461Trp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00017 in 1,613,576 control chromosomes in the GnomAD database, with no homozygous occurrence. 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. R461Q) has been classified as Uncertain significance.
Frequency
Consequence
NM_003560.4 missense
Scores
Clinical Significance
Conservation
Publications
- neurodegeneration with brain iron accumulation 2AInheritance: AR Classification: DEFINITIVE, STRONG, SUPPORTIVE Submitted by: G2P, Ambry Genetics, Genomics England PanelApp, Orphanet, Labcorp Genetics (formerly Invitae)
- neurodegeneration with brain iron accumulation 2BInheritance: AR Classification: DEFINITIVE, STRONG Submitted by: Ambry Genetics, Genomics England PanelApp, Labcorp Genetics (formerly Invitae)
- PLA2G6-associated neurodegenerationInheritance: AR Classification: DEFINITIVE Submitted by: ClinGen
- autosomal recessive Parkinson disease 14Inheritance: AR Classification: STRONG, MODERATE, SUPPORTIVE Submitted by: Ambry Genetics, Labcorp Genetics (formerly Invitae), Genomics England PanelApp, Orphanet
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ACMG classification
Our verdict: Uncertain_significance. The variant received 0 ACMG points.
Transcripts
RefSeq
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
|---|---|---|---|---|---|---|---|---|
| PLA2G6 | NM_003560.4 | c.1381C>T | p.Arg461Trp | missense_variant | Exon 10 of 17 | ENST00000332509.8 | NP_003551.2 |
Ensembl
| Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
|---|---|---|---|---|---|---|---|---|---|---|
| PLA2G6 | ENST00000332509.8 | c.1381C>T | p.Arg461Trp | missense_variant | Exon 10 of 17 | 1 | NM_003560.4 | ENSP00000333142.3 |
Frequencies
GnomAD3 genomes AF: 0.000171 AC: 26AN: 152106Hom.: 0 Cov.: 33 show subpopulations
GnomAD2 exomes AF: 0.000144 AC: 36AN: 250548 AF XY: 0.000162 show subpopulations
GnomAD4 exome AF: 0.000170 AC: 249AN: 1461352Hom.: 0 Cov.: 30 AF XY: 0.000158 AC XY: 115AN XY: 726982 show subpopulations
Age Distribution
GnomAD4 genome AF: 0.000171 AC: 26AN: 152224Hom.: 0 Cov.: 33 AF XY: 0.000175 AC XY: 13AN XY: 74418 show subpopulations
Age Distribution
ClinVar
Submissions by phenotype
not provided Uncertain:2
Previously reported in the heterozygous state in an individual with early onset Parkinson disease; variant was also observed in an individual in the control population (PMID: 21812034).; In silico analysis suggests that this missense variant does not alter protein structure/function; This variant is associated with the following publications: (PMID: 22575062, 21812034, 35810474) -
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Infantile neuroaxonal dystrophy Uncertain:1
This sequence change replaces arginine, which is basic and polar, with tryptophan, which is neutral and slightly polar, at codon 461 of the PLA2G6 protein (p.Arg461Trp). This variant is present in population databases (rs76718524, gnomAD 0.02%). This missense change has been observed in individual(s) with early-onset Parkinson disease (PMID: 21812034). ClinVar contains an entry for this variant (Variation ID: 459996). 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 PLA2G6 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. -
Infantile neuroaxonal dystrophy;C1857747:Neurodegeneration with brain iron accumulation 2B;C2751842:Autosomal recessive Parkinson disease 14 Uncertain:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at