rs587778554
Variant summary
Our verdict is Likely benign. Variant got -4 ACMG points: 0P and 4B. BS2
The NM_000268.4(NF2):c.1007G>A(p.Arg336Gln) variant causes a missense change. The variant allele was found at a frequency of 0.00000684 in 1,461,702 control chromosomes in the GnomAD database, with no homozygous occurrence. Variant has been reported in ClinVar as Uncertain significance (★★).
Frequency
Consequence
NM_000268.4 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 |
---|---|---|---|---|---|---|---|---|
NF2 | NM_000268.4 | c.1007G>A | p.Arg336Gln | missense_variant | Exon 11 of 16 | ENST00000338641.10 | NP_000259.1 |
Ensembl
Frequencies
GnomAD3 genomes Cov.: 32
GnomAD3 exomes AF: 0.0000119 AC: 3AN: 251398Hom.: 0 AF XY: 0.00000736 AC XY: 1AN XY: 135880
GnomAD4 exome AF: 0.00000684 AC: 10AN: 1461702Hom.: 0 Cov.: 32 AF XY: 0.00000413 AC XY: 3AN XY: 727146
GnomAD4 genome Cov.: 32
ClinVar
Submissions by phenotype
Neurofibromatosis, type 2 Uncertain:4
This missense variant replaces arginine with glutamine at codon 336 of the NF2 protein. Computational prediction suggests that this variant may not impact protein structure and function (internally defined REVEL score threshold <= 0.5, PMID: 27666373). To our knowledge, functional studies have not been reported for this variant. This variant has not been reported in individuals affected with NF2-related disorders in the literature. This variant has been identified in 3/251398 chromosomes in the general population by the Genome Aggregation Database (gnomAD). The available evidence is insufficient to determine the role of this variant in disease conclusively. Therefore, this variant is classified as a Variant of Uncertain Significance. -
This sequence change replaces arginine, which is basic and polar, with glutamine, which is neutral and polar, at codon 336 of the NF2 protein (p.Arg336Gln). This variant is present in population databases (rs587778554, gnomAD 0.003%). This variant has not been reported in the literature in individuals affected with NF2-related conditions. ClinVar contains an entry for this variant (Variation ID: 134895). Invitae Evidence Modeling of protein sequence and biophysical properties (such as structural, functional, and spatial information, amino acid conservation, physicochemical variation, residue mobility, and thermodynamic stability) indicates that this missense variant is not expected to disrupt NF2 protein function with a negative predictive value of 80%. 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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This variant was observed as part of a predisposition screen in an ostensibly healthy population. A literature search was performed for the gene, cDNA change, and amino acid change (where applicable). No publications were found based on this search. Allele frequency data from public databases did not allow this variant to be ruled in or out of causing disease. Therefore, this variant is classified as a variant of unknown significance. -
not provided Uncertain:1
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Neurofibromatosis, type 2;C3551915:Familial meningioma Uncertain:1
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Hereditary cancer-predisposing syndrome Uncertain:1
The p.R336Q variant (also known as c.1007G>A), located in coding exon 11 of the NF2 gene, results from a G to A substitution at nucleotide position 1007. The arginine at codon 336 is replaced by glutamine, an amino acid with highly similar properties. This amino acid position is well conserved in available vertebrate species. In addition, the in silico prediction for this alteration is inconclusive. Since supporting evidence is limited at this time, the clinical significance of this alteration remains unclear. -
not specified Other:1
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Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at