rs1019340046
Variant summary
Our verdict is Pathogenic. Variant got 18 ACMG points: 18P and 0B. PS1_Very_StrongPM1PM2PM5PP3_Strong
The NM_000546.6(TP53):c.738G>T(p.Met246Ile) variant causes a missense change involving the alteration of a conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,818 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 nucleotide change resulting in same amino acid change has been previously reported as Likely pathogenicin ClinVar. Another variant affecting the same amino acid position, but resulting in a different missense (i.e. M246L) has been classified as Likely pathogenic.
Frequency
Consequence
NM_000546.6 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Pathogenic. Variant got 18 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | MANE | UniProt |
---|---|---|---|---|---|---|---|
TP53 | NM_000546.6 | c.738G>T | p.Met246Ile | missense_variant | 7/11 | ENST00000269305.9 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | #exon/exons | TSL | MANE | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|
TP53 | ENST00000269305.9 | c.738G>T | p.Met246Ile | missense_variant | 7/11 | 1 | NM_000546.6 | P1 |
Frequencies
GnomAD3 genomes Cov.: 30
GnomAD4 exome AF: 6.84e-7 AC: 1AN: 1461818Hom.: 0 Cov.: 32 AF XY: 0.00000138 AC XY: 1AN XY: 727220
GnomAD4 genome Cov.: 30
ClinVar
Submissions by phenotype
Li-Fraumeni syndrome Uncertain:1
Uncertain significance, criteria provided, single submitter | clinical testing | Invitae | Sep 11, 2023 | This missense change has been observed in individual(s) with Li-Fraumeni syndrome (PMID: 32817165). This sequence change replaces methionine, which is neutral and non-polar, with isoleucine, which is neutral and non-polar, at codon 246 of the TP53 protein (p.Met246Ile). This variant is not present in population databases (gnomAD no frequency). ClinVar contains an entry for this variant (Variation ID: 968639). Advanced modeling performed at Invitae incorporating data from internal and/or published experimental studies (PMID: 12826609, 29979965, 30224644) indicates that this missense variant is expected to disrupt TP53 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