Fitting a right hand in a left-handed mitten

Many biomolecules come in two versions that are each other's mirror image, like a left and a right hand. Cells generally use the left-hand version of amino acids to produce proteins, and uptake mechanisms were thought to ...

Multiple modes for selectivity of transmembrane transport

LMU researchers utilized a biophysical approach to understand how bacterial import proteins bind and selectively convey their cargoes across membranes. The results reveal an unexpectedly wide variety of transfer mechanisms.

How proteins are assigned to specific transporters

A fundamental cellular mechanism ensures that proteins are transported to the places they are needed in the cells. So-called vesicles are responsible for that transport. Determining their composition has been difficult up ...

Researchers uncover mechanism of protein transport in mitochondria

The research labs of Dr. Thomas Becker and Dr. Nikolaus Pfanner from the Institute for Biochemistry and Molecular Biology at the University of Freiburg have reported a function of the metabolite channel of the mitochondrial ...

New insight into unique sugar transport in plants

Sugar transport through sugar transport proteins (STP) is unique to plants, and is important for the proper development of plant organs such as pollen. STPs are also used to concentrate sugars in specific tissues like fruit, ...

Sea slug study illuminates how mitochondria move

Your cells have an amazing ability—they can build their own energy factories, called mitochondria. Once built, mitochondria must move where needed in the cell. Defects in mitochondrial transport are a suspected cause of ...

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