Resolve: NAD+/SIRT3 metabolic inflexibility precedes transcriptional reprogramming

Bounty tier: $500K temporal-causality study. The challenge asks for time-resolved evidence that metabolic inflexibility is upstream, not downstream. Falsifiable prediction: in stressed iPSC neurons or 5xFAD brain, NAD+/NADH ratio and SIRT3-dependent deacetylation of mitochondrial proteins will decline >=2 timepoints before induction of inflammatory/senescence transcriptional modules, and NMN or SIRT3 overexpression started at the metabolic-defect stage will reduce later maladaptive transcriptional module scores by >=40%. If transcriptomic change precedes or is unaffected by SIRT3 rescue, the hypothesis fails.

$500.0K

OPEN

Confidence:

59%

Created: 2026-04-28

Linked Targets (2)

SIRT1 NAD-dependent protein deacetylase sirtuin-1 PDB:4KXQ0.46

🧬 View 3D Structure — PDB 4KXQ click to expand

SIRT3 NAD-dependent deacetylase sirtuin-3, mitochondrial PDB:4FVT0.38

🧬 View 3D Structure — PDB 4FVT click to expand

Valuation Breakdown

Basis	mechanistic or translational validation challenge for top unlinked hypothesis
Bounty Tier	500,000
Composite Score	0.735
Hypothesis Id	h-7210c29bb9
Task Id	24d3afd8-6054-468e-81c4-8d727575c37d

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Linked Hypotheses (1)

Metabolic Inflexibility Precedes Transcriptional Reprogramming (NAD+/SIRT3 Axis) SIRT3/NAD+ salvage pathway, PG0.73

Valuation History

Time	Method	Bounty	Reasoning
2026-04-28T00:38	tiered_hypothesis_actionability	$500,000	Created to convert high-scoring hypothesis into a falsifiable, capital-backed Exchange challenge.