NM_003537.3:c.244G>C (p.Asp82His) is a missense variant in H3C2, a histone H3 gene recurrently altered in pediatric cancers including glioblastoma.1 The variant is absent from gnomAD v2.1 and v4.1 population databases (PM2_Supporting).2 The variant is not present in COSMIC and does not lie within a statistically significant mutational hotspot. In silico predictions are equivocal: REVEL score is 0.585 and BayesDel is 0.631, both borderline toward pathogenicity, while SpliceAI predicts no splicing impact (max delta 0.08).3 No functional studies, segregation data, de novo reports, or case-control evidence have been identified for this variant. OncoKB reports no variant-specific functional evidence.4 A single ClinVar submission from Invitae classifies the variant as uncertain significance; no expert panel or multi-submitter consensus is available.5 Only one supporting pathogenic criterion (PM2_Supporting) is met. No benign criteria are met. The evidence is insufficient to classify the variant as pathogenic or benign.6