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| Format: | Recurso digital |
| Sprache: | Englisch |
| Veröffentlicht: |
Zenodo
2025
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.5281/zenodo.17625399 |
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Inhaltsangabe:
- <p>This manuscript proposes that heme and hemoglobin are evolutionary descendants of the prebiotic redox-regulating systems described in the Proto-Liver Origin of Life (PLOL) framework.<br>Heme’s iron-porphyrin structure mirrors ancient mineral redox centers, and its chemistry reflects the same directional electron flow mechanisms proposed to stabilize early metabolism-like reactions. When embedded in a chiral protein pocket, heme acquires cooperative and regulatory properties, enabling hemoglobin to function as a distributed oxygen-control system across multicellular organisms.<br>This paper argues that hemoglobin retains structural and functional signatures of Earth’s earliest energy-stabilizing chemistry, creating a continuous lineage from prebiotic regulation → porphyrins → heme → hemoglobin → modern metabolic and physiological control (LBC framework).<br>The hypothesis yields testable predictions regarding porphyrin self-assembly, heme redox behavior, chirality-dependent binding dynamics, and ancestral hemoproteins.</p> <p>Companion Paper B01 - <strong><span>Iron–Sulfur Clusters as Evolutionary Bridges in the Proto-Liver Origin of Life (PLOL) V1 added 17 Nov 2025</span></strong></p> <p><strong>Keywords:</strong> heme evolution; hemoglobin; porphyrins; PLOL; redox regulation; prebiotic chemistry; oxygen transport; metabolic evolution; chirality; iron-sulfur chemistry.</p>