GRASP65, a protein involved in the stacking of Golgi cisternae

Article Abstract:

Experiment was conducted to identify the proteins on Golgi membranes that might establish or mediate the stacking of Golgi cisternae. Candidate proteins in this system should be n-ethylmaleimide (NEM)-sensitive proteins of Golgi membranes subject to some form of cell-cycle regulation as the cell enters and exits mitosis. Accessible sulphydryl groups on the starting Golgi membranes were blocked with NEM and then treated with mitotic or interphase cytosols. Results link vesicle docking, stacking of Golgi cisternae and the disruption of both interactions during mitosis.

Cell cycle, Mitosis, Golgi apparatus, Recombinant proteins

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Auxin distribution and plant pattern formation: How many angels can dance on the point of PIN?

Article Abstract:

The direction of auxin flow and the distribution of auxin within tissues are regulated by auxin efflux, which is an active, carrier-dependent process that is often dependent on PIN proteins. Feedback regulation between auxin and its transporters establishes homeostatic patterns of auxin accumulation but allows dynamic repatterning in response to developmental or environmental cues.

Science & research, Cell membranes, Auxin, Auxins, Genetic research

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