Page 7: Research news on Subcellular structures

Subcellular structures are distinct, spatially organized physical systems within cells, encompassing membrane-bound organelles (e.g., mitochondria, endoplasmic reticulum, Golgi apparatus, lysosomes), non-membranous bodies (e.g., ribosomes, cytoskeleton, centrosomes), and specialized compartments (e.g., nucleolus, stress granules). They are defined by specific molecular compositions, biophysical properties, and emergent functions such as energy transduction, macromolecular synthesis, intracellular trafficking, signal transduction, and mechanical support. As physical systems, they exhibit dynamic self-assembly, phase separation, and regulated turnover, and their organization is governed by principles of thermodynamics, molecular crowding, and active processes driven by nucleotide hydrolysis and cytoskeletal forces.

A molecular 'cork' reveals how cells control growth

How do cells know when to activate or slow down their activity? A team from the University of Geneva (UNIGE) provides new insights by studying TORC2, an essential but still poorly understood protein complex. Using ultra-high-resolution ...

How cells turn mechanical forces into biochemical signals

Cells constantly probe their environments, searching for physical cues that guide their behavior. And yet a cell's response to its environment is always biochemical, mediated by the chemistry of its internal protein machinery. ...

Cell membranes may store memories after electrical stimulation

The science of memories has been pursued and studied since the days of ancient Greece and Aristotle. Today, research conducted by Dima Bolmatov, assistant professor in the Department of Physics & Astronomy at Texas Tech University, ...

Cells 'switch' on protein factories after injury, study finds

Scientists have uncovered a novel mechanism through which skin cells organize and control protein production during homeostasis and wound healing, according to a new study published in Developmental Cell. The findings offer ...

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