Proteome reanalysis (126k Tm measurements) finds no evidence mitochondria run at 50°C
paraschopra · x · 2026-11-11
Full technical report and code behind Chopra's Claude-driven discovery. The proteome melting point tracks growth temperature (0.55-0.81°C/°C across 13 species, r=0.97), so a matrix persistently 10-15°C hotter should show proteins melting 5-12°C above cytosolic ones. Reanalyzing the Meltome Atlas (62 datasets, 4 labs, 6 species, 126,176 Tm measurements) yields ΔTm of -0.17°C in lysates (95% CI -1.00 to +0.58) and only +1.26°C in intact cells; paralog pairs and a protein-LM thermostability predictor (TemStaPro, 5 species) show no heat signature. The hot-mitochondria hypothesis survives only if an unobserved 5-12°C matrix-specific stabilization exists. A single TPP experiment (respiration on/off in intact cells) is proposed to settle the debate.
Related event: Claude Autonomously Challenges the "Hot Mitochondria" Hypothesis(2 posts)→
More from Models
- Gemini 4 Carbon Burns 45 Minutes and 262k Tokens, Delivers No Code Review — No-Park606 · 2026-11-11
- Anthropic's Fable 5.2 Formalizes Fermat's Last Theorem Proof in 30 Hours with ~1,000 Agents — sven_ai · 2026-11-11
- AI Is Still Surprisingly Bad at Writing and Judging Comedy, Says Dev — ivan_bezdomny · 2026-11-11
- Google poised to drop Gemini 4 Hydrogen (Flash) on second straight day of releases — gaganghotra_ · 2026-11-11
- Wave of tiny TTS releases: 8M-param Paradee hits 0.69% WER on Open TTS Leaderboard — LysandreJik · 2026-11-11
- Rumor: Gemini 4 Carbon Touted as Ultra-Cheap, Near Fable 5.2 in Capability — jason_mayes · 2026-11-11