Breakthrough: Sensors monitor cells at work

Transport proteins are responsible for moving materials such as nutrients and metabolic products through a cell's outer membrane, which seals and protects all living cells, to the cell's interior. These transported molecules ...

Researchers find active transporters are universally leaky

Professor of Biochemistry Emad Tajkhorshid and colleagues have discovered that membrane transporters help not just sugars and other specific substrates cross from one side of a cellular membrane to the other—water also ...

Team identifies proton pathway in photosynthesis

(Phys.org) —A Purdue University-led team has revealed the proton transfer pathway responsible for a majority of energy storage in photosynthesis. Through photosynthesis, plants, algae and bacteria convert sunlight, carbon ...

How did early primordial cells evolve?

Four billion years ago, soon after the planet cooled enough for life to begin, primordial cells may have replicated and divided without protein machinery or cell walls, relying instead on just a flimsy lipid membrane. New ...

Study shows how cells form 'trash bags' for recycling waste

(Phys.org)—To remove waste from cells, a class of membrane-sculpting proteins create vesicles—molecular trash bags—that carry old and damaged proteins from the surface of cellular compartments into internal recycling ...

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