Questions about MinD

Short answers, pulled from the story.

When did scientists first identify the MinD protein within Escherichia coli bacteria?

Scientists first identified the MinD protein within Escherichia coli bacteria. Early researchers believed this molecule formed a stable cap at each end of the bacterial cell.

Who observed that MinC and MinD rapidly oscillate between two poles instead of forming static caps?

Raskin and de Boer observed MinC and MinD rapidly oscillating between two poles instead. Their work revealed a dynamic interaction rather than a static structure.

What activates ATPase activity in the MinD protein when MinE is present with phospholipids?

The ATPase activity of MinD activates when MinE is present with phospholipids. Binding to the membrane induces a specific conformational change within the protein.

How do MinD and MinE proteins create a moving boundary inside the bacterium?

MinD and MinE proteins alternate positions to create a moving boundary inside the bacterium. These molecules travel back and forth across the length of the cell repeatedly.

Where does MinD form a membrane-bound carpet during experiments using two-dimensional supporting lipid bilayers?

Fluorescent labeling showed MinD forming a membrane-bound carpet in MinE mutants. Localized foci of increased MinE concentration caused MinD to detach from the membrane.