Researchers explain how railways in cells are built

Every cell in the human body contains a complex system to transport essential cargoes such as proteins and membrane vesicles from one point to another. These tiny molecular motor proteins move at high speeds on miniature railways carrying components of the cell to their proper destinations. It is critical that these railways are neither too long nor too short, as that would cause a misdirection of the proteins being transported. But just how cells construct these transport railways to fit precisely inside the confines of individual cells is a complex question.

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