Classification rationale
1
The PTEN c.449_456del (p.Glu150GlyfsTer27) 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, placing it below the PTEN Expert Panel PM2 population threshold of 0.001%.
gnomad_v2 ↗ gnomad_v4 ↗ cspec ↗3
This deletion is predicted to cause a frameshift with premature protein truncation, and under the PTEN-specific PVS1 decision tree its position 5' of c.1121 (p.D375) supports loss of function; SpliceAI does not predict an additional splice effect (maximum delta score 0.01).
spliceai ↗