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1.790 4.5 500 1,285 Energy stored through solid to liquid phase change of silicon [88] Strontium bromide hydrate: 0.814 [89] 1.93 628 Thermal energy of phase change at 88.6 °C (361.8 K) Liquid nitrogen: 0.77 [90] 0.62 213.9 172.2 Maximum reversible work at 77.4 K with 300 K reservoir Compressed air at 30 MPa (4,400 psi) 0.5 0.2 138.9 55.6
ATP hydrolysis may widen the periplasmic opening and push the substrate towards the outer leaflet of the lipid bilayer. Hydrolysis of the second ATP molecule and release of P i separates the NBDs followed by restoration of the resting state, opening the chamber towards the cytoplasm for another cycle. [41] [44] [52] [55] [81] [85]