Page 13: Research news on Biomolecules

Biomolecules, as physical systems, are distinct molecular entities synthesized or utilized by living organisms that exhibit specific structural, thermodynamic, and dynamical properties enabling biological function. They include nucleic acids, proteins, lipids, carbohydrates, and diverse metabolites, each characterized by defined covalent connectivity, three-dimensional conformations, and interaction potentials with solvents, ions, and other biomolecules. Their behavior is governed by quantum-mechanical bonding, classical electrostatics, and statistical thermodynamics, leading to emergent phenomena such as self-assembly, allostery, enzyme catalysis, and molecular recognition. In physical systems research, biomolecules are studied through techniques like spectroscopy, crystallography, cryo-EM, and molecular simulations to elucidate structure–function relationships and energy landscapes.

Shapeshifting RNA switches regulate gene activity in cells

Apart from carrying the information to encode proteins in, RNA molecules can adopt intricate 2D and 3D structures. Specifically, the same RNA molecule can switch between ON and OFF structures, modulating the ability of ribosomes ...

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