Our verdict is Uncertain significance. Variant got 3 ACMG points: 3P and 0B. PM2PP3
The NM_001001976.3(ATE1):c.1492G>T(p.Val498Phe) variant causes a missense change involving the alteration of a non-conserved nucleotide. The variant allele was found at a frequency of 0.000000684 in 1,461,876 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. V498I) has been classified as Uncertain significance.
ATE1 (HGNC:782): (arginyltransferase 1) This gene encodes an arginyltransferase, an enzyme that is involved in posttranslational conjugation of arginine to N-terminal aspartate or glutamate residues. Conjugation of arginine to the N-terminal aspartate or glutamate targets proteins for ubiquitin-dependent degradation. Alternative splicing results in multiple transcript variants. [provided by RefSeq, Dec 2013]
Review Status: criteria provided, single submitter
Collection Method: clinical testing
The c.1492G>T (p.V498F) alteration is located in exon 12 (coding exon 12) of the ATE1 gene. This alteration results from a G to T substitution at nucleotide position 1492, causing the valine (V) at amino acid position 498 to be replaced by a phenylalanine (F). Based on insufficient or conflicting evidence, the clinical significance of this alteration remains unclear. -