rs121913506
Variant summary
Our verdict is Likely pathogenic. Variant got 9 ACMG points: 9P and 0B. PM1PM2PM5PP2PP3_Moderate
The NM_000222.3(KIT):c.2446G>A(p.Asp816Asn) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.00000657 in 152,100 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. D816I) has been classified as Pathogenic.
Frequency
Consequence
NM_000222.3 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Likely_pathogenic. Variant got 9 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
KIT | NM_000222.3 | c.2446G>A | p.Asp816Asn | missense_variant | 17/21 | ENST00000288135.6 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
KIT | ENST00000288135.6 | c.2446G>A | p.Asp816Asn | missense_variant | 17/21 | 1 | NM_000222.3 | P4 |
Frequencies
GnomAD3 genomes ? AF: 0.00000657 AC: 1AN: 152100Hom.: 0 Cov.: 32
GnomAD4 exome Cov.: 30
GnomAD4 genome ? AF: 0.00000657 AC: 1AN: 152100Hom.: 0 Cov.: 32 AF XY: 0.00 AC XY: 0AN XY: 74306
ClinVar
Submissions by phenotype
Gastrointestinal stromal tumor Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Aug 12, 2022 | 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. 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 (SIFT: "Deleterious"; PolyPhen-2: "Possibly Damaging"; Align-GVGD: "Class C15"). This variant has not been reported in the literature in individuals affected with KIT-related conditions. This variant is not present in population databases (gnomAD no frequency). This sequence change replaces aspartic acid, which is acidic and polar, with asparagine, which is neutral and polar, at codon 816 of the KIT protein (p.Asp816Asn). - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at