NM_000245.4:c.788C>T
Variant summary
Our verdict is Uncertain significance. Variant got 1 ACMG points: 1P and 0B. PP3
The NM_000245.4(MET):c.788C>T(p.Thr263Met) variant causes a missense change. The variant allele was found at a frequency of 0.0000254 in 1,613,940 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. T263A) has been classified as Uncertain significance.
Frequency
Consequence
NM_000245.4 missense
Scores
Clinical Significance
Conservation
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ACMG classification
Verdict is Uncertain_significance. Variant got 1 ACMG points.
Transcripts
RefSeq
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | MANE | Protein | UniProt |
---|---|---|---|---|---|---|---|---|
MET | NM_000245.4 | c.788C>T | p.Thr263Met | missense_variant | Exon 2 of 21 | ENST00000397752.8 | NP_000236.2 |
Ensembl
Gene | Transcript | HGVSc | HGVSp | Effect | Exon rank | TSL | MANE | Protein | Appris | UniProt |
---|---|---|---|---|---|---|---|---|---|---|
MET | ENST00000397752.8 | c.788C>T | p.Thr263Met | missense_variant | Exon 2 of 21 | 1 | NM_000245.4 | ENSP00000380860.3 | ||
MET | ENST00000318493.11 | c.788C>T | p.Thr263Met | missense_variant | Exon 2 of 21 | 1 | ENSP00000317272.6 | |||
MET | ENST00000436117.3 | n.788C>T | non_coding_transcript_exon_variant | Exon 2 of 20 | 1 | ENSP00000410980.2 | ||||
MET | ENST00000422097.2 | c.788C>T | p.Thr263Met | missense_variant | Exon 2 of 12 | 3 | ENSP00000398776.2 |
Frequencies
GnomAD3 genomes AF: 0.0000263 AC: 4AN: 152146Hom.: 0 Cov.: 32
GnomAD3 exomes AF: 0.0000120 AC: 3AN: 249120Hom.: 0 AF XY: 0.0000148 AC XY: 2AN XY: 135136
GnomAD4 exome AF: 0.0000253 AC: 37AN: 1461794Hom.: 0 Cov.: 32 AF XY: 0.0000261 AC XY: 19AN XY: 727198
GnomAD4 genome AF: 0.0000263 AC: 4AN: 152146Hom.: 0 Cov.: 32 AF XY: 0.0000404 AC XY: 3AN XY: 74324
ClinVar
Submissions by phenotype
Autosomal recessive nonsyndromic hearing loss 97 Uncertain:1
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Renal cell carcinoma Uncertain:1
This sequence change replaces threonine, which is neutral and polar, with methionine, which is neutral and non-polar, at codon 263 of the MET protein (p.Thr263Met). This variant is present in population databases (rs764052874, gnomAD 0.005%). This variant has not been reported in the literature in individuals affected with MET-related conditions. ClinVar contains an entry for this variant (Variation ID: 485747). 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) has been performed for this missense variant. However, the output from this modeling did not meet the statistical confidence thresholds required to predict the impact of this variant on MET 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. -
not provided Uncertain:1
Not observed at significant frequency in large population cohorts (gnomAD); In silico analysis supports that this missense variant has a deleterious effect on protein structure/function; Has not been previously published as pathogenic or benign to our knowledge -
Papillary renal cell carcinoma type 1 Uncertain:1
This variant was observed in the ICSL laboratory as part of a predisposition screen in an ostensibly healthy population. It had not been previously curated by ICSL or reported in the Human Gene Mutation Database (HGMD: prior to June 1st, 2018), and was therefore a candidate for classification through an automated scoring system. Utilizing variant allele frequency, disease prevalence and penetrance estimates, and inheritance mode, an automated score was calculated to assess if this variant is too frequent to cause the disease. Based on the score, this variant could not be ruled out of causing disease and therefore its association with disease required further investigation. A literature search was performed for the gene, cDNA change, and amino acid change (if applicable). No publications were found based on this search. This variant was therefore classified as a variant of unknown significance for this disease. -
Hereditary cancer-predisposing syndrome Uncertain:1
The p.T263M variant (also known as c.788C>T), located in coding exon 1 of the MET gene, results from a C to T substitution at nucleotide position 788. The threonine at codon 263 is replaced by methionine, an amino acid with similar properties. This amino acid position is highly 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. -
Computational scores
Source:
Splicing
Find out detailed SpliceAI scores and Pangolin per-transcript scores at