March 3, 2023

On the Cover
Immunofluorescence image of actin bundles in muscle precursor cells called myoblasts. The actin is labeled with fluorescently tagged phalloidin, a toxin from the Amanita phalloides mushroom. Nuclei are shown in blue.
Photo: ALEX RITTER, JENNIFER LIPPINCOTT-SCHWARTZ AND GILLIAN GRIFFITHS, NIH