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Molecular machines. Harmonics molecular oscillators.
Its known that molecular structures, proteic or nucleoproteic could be redefined as molecular machines. In other words, a molecular machine is just a simple macromolecule o a macromolecular complex. A molecular machine executes specific functions in living systems, they are isothermals. It means they are forced to work in a narrow range of temperatures in the thermal bath where they exist. Nevertheless, they can use the primary energy from surrounds to change its conformation into more flexible one. That is, essentially, a controlled way of denaturation what results in a loss of its biological function. Beyond the primary energy, any excess of energy is quickly dissipated leading the molecule confinement to the previous state at physiological temperature. A specific macromolecule receives a quantum of energy that put it from a basal state to an excited state. A further specific action always occurs dissipating the absorbed energy which is coupled to the realization of a specific function, evolutionarily advantageous for the organism who synthesized the macromolecule.
Molecular machines could be stimulated by any energy source besides primary
energy sources. That includes not only photons and ATP but also thermal
movement like the restriction enzyme EcoRI isolated from its DNA binding site.
EcoRI uses thermal fluctuations, originated by microscopical heat, as energy
source to reach the DNA in a specific manner (Schneider, 1991a y 1991b).
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