Classification rationale
1
The BRAF c.1787G>T (p.Gly596Val) variant has been observed in somatic cancers in COSMIC and has been reported in ClinVar as Pathogenic with expert-panel review.
clinvar ↗2
This variant is absent from gnomAD v2.1 and gnomAD v4.1, which supports rarity in population reference datasets.
gnomad_v2 ↗ gnomad_v4 ↗3
In a published functional study, BRAF p.Gly596Val caused abnormal zebrafish developmental phenotypes and showed downstream ERK activation, consistent with dysregulated MAPK signaling.
PMID:19376813 ↗4
Computational evidence supports a deleterious missense effect, with REVEL 0.989 above the BRAF PP3 threshold of 0.7, BayesDel 0.588239, and SpliceAI predicting no significant splice effect with a maximal delta score of 0.07.
spliceai ↗ cspec ↗