rs757308315
Variant summary
Our verdict is Uncertain significance. Variant got 2 ACMG points: 4P and 2B. PM1PM2BP4_Moderate
The NM_000077.5(CDKN2A):c.360G>T(p.Glu120Asp) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.00000343 in 1,457,182 control chromosomes in the GnomAD database, with no homozygous occurrence. In-silico tool predicts 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. E120E) has been classified as Likely benign.
Frequency
Consequence
NM_000077.5 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 2 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
CDKN2A | NM_000077.5 | c.360G>T | p.Glu120Asp | missense_variant | 2/3 | ENST00000304494.10 | |
CDKN2A | NM_058195.4 | c.*4G>T | 3_prime_UTR_variant | 2/3 | ENST00000579755.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
CDKN2A | ENST00000304494.10 | c.360G>T | p.Glu120Asp | missense_variant | 2/3 | 1 | NM_000077.5 | P2 | |
CDKN2A | ENST00000579755.2 | c.*4G>T | 3_prime_UTR_variant | 2/3 | 1 | NM_058195.4 |
Frequencies
GnomAD3 genomes ? Cov.: 32
GnomAD3 exomes AF: 0.00000825 AC: 2AN: 242444Hom.: 0 AF XY: 0.00000756 AC XY: 1AN XY: 132272
GnomAD4 exome AF: 0.00000343 AC: 5AN: 1457182Hom.: 0 Cov.: 31 AF XY: 0.00000276 AC XY: 2AN XY: 725126
GnomAD4 genome ? Cov.: 32
ClinVar
Submissions by phenotype
Hereditary cancer-predisposing syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Ambry Genetics | Aug 22, 2019 | The p.E120D variant (also known as c.360G>T), located in coding exon 2 of the CDKN2A gene, results from a G to T substitution at nucleotide position 360. The glutamic acid at codon 120 is replaced by aspartic acid, 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. - |
Familial melanoma Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Dec 12, 2021 | 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. This sequence change replaces glutamic acid, which is acidic and polar, with aspartic acid, which is acidic and polar, at codon 120 of the CDKN2A (p16INK4a) protein (p.Glu120Asp). 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 CDKN2A (p16INK4a)-related conditions. ClinVar contains an entry for this variant (Variation ID: 823988). Algorithms developed to predict the effect of missense changes on protein structure and function (SIFT, PolyPhen-2, Align-GVGD) all suggest that this variant is likely to be tolerated. - |
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at