Classification rationale
1
The PTEN c.570_571delinsT (p.Val191TrpfsTer8; p.V191Wfs*8) variant has not been observed in somatic cancers in COSMIC and has not been reported in ClinVar.
clinvar ↗2
This variant is absent from gnomAD v2.1 and gnomAD v4.1, which is below the PTEN VCEP PM2_Supporting population threshold of 0.001%.
cspec ↗ gnomad_v2 ↗ gnomad_v4 ↗3
This frameshift is predicted to introduce a premature stop codon after 8 altered amino acids at codon 191, and the PTEN VCEP PVS1 decision tree supports PVS1 for truncating variants at or 5' to p.D375 in the biologically relevant transcript NM_000314.8.
4
SpliceAI predicts no significant splice impact for this variant, with a maximum delta score of 0.06.
spliceai ↗