Actin Assembly in the Cell (IMAGE)

Sanford Burnham Prebys

Actin Assembly in the Cell

Caption

Cryo-electron microscope images of actin assembly in the cell in the absence of a molecular signal (left) and the haystack-like actin filament nanoscaffold that was induced in response to a molecular signal (Rac1) and promotes cell movement (right). The structure sprang into view in defined regions where Rac1 was activated, and quickly dissipated when Rac1 signaling stopped—in as little as two and a half minutes.

Credit

Sanford Burnham Prebys Medical Discovery Institute (SBP)

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