商品簡介
Principia Geometrica Proteini presents from first principles a new geometric and thermodynamic framework for understanding how proteins respond to perturbations, including mutation, ligand binding, conformational change, and disease association. The central premise is that functionally important protein mechanics are encoded in the geometry of the protein backbone itself and expressed not only through visible structural motion, but also in the redistribution of strain within the backbone hydrogen-bond network.Building on earlier work introducing backbone free energy as a measure of hydrogen-bond strain, the book develops two calibrated invariants: fragility, which quantifies the intrinsic susceptibility of a site in the native structure, and lability, which measures the energetic reorganization induced by perturbative mutation or state change. These quantities detect mechanically significant responses that may remain largely invisible to conventional structural comparison, uncovering new relationships between fragility and lability both locally and globally.The framework combines mathematical economy, experimental calibration, and biological breadth. It is tested against high-throughput thermodynamic data comprising approximately 150,000 mutations and supports two general principles: fragile sites are predisposed to greater mutation-induced reorganization, and this reorganization is systematically associated with thermodynamic destabilization. The resulting theory provides a low-dimensional and interpretable account of protein response, complementing molecular dynamics, statistical models, and machine-learning approaches while requiring substantially less computational complexity.By unifying geometry, thermodynamics, structural biology, AlphaFold models, mutational scanning, and disease analysis, the book establishes a coherent theory of heretofore hidden protein mechanics and offers a broadly applicable methodology for protein science, bioengineering, and therapeutic design.
