DISCOVER · ALLELE
01What molecular consequence does each ASH1L alteration produce?
Sequence class and protein position do not establish mechanism. For most alleles, mutant-transcript abundance, nonsense-mediated decay or escape, alternative splicing, stable protein, localization, chromatin engagement, catalytic activity, scaffolding, and residual function remain unmeasured.
POPULATION / COMPARATOR
Who or what should be compared?
Prioritized allele-specific lines, corrected isogenic controls, matched reference lines, multiple clones and batches, and a dosage series; protein-position analyses exclude CNV/deletions, complex or mixed results, splice findings without a defined protein consequence, and unresolved results.
STUDY DESIGN
How could the question be tested?
Prioritize patient-derived cells with CRISPR-corrected isogenic controls; add allele-specific long-read and short-read RNA, transcript stability, quantitative full-length protein, localization, chromatin engagement, dosage series, and ASH1L rescue. Analyze single-position results, CNV/deletions, splice findings, complex or mixed results, related-family observations, unresolved results, and additional potentially relevant findings separately.
EVIDENCE GATE
What would support the proposed link?
the molecular consequence reproduces across independent clones and batches, is directionally consistent across orthogonal assays, and shows dose-appropriate attenuation with genetic correction or a well-justified ASH1L rescue.
STOP RULE
What would weaken it?
the effect is clone-, batch-, or assay-specific; correction does not attenuate it under validated conditions; or variant class is being used as a substitute for a measured consequence.