DR DAN KALMAN , KATIE VICARI / SCIENCE PHOTO LIBRARY DR DAN KALMAN , KATIE VICARI / SCIENCE PHOTO LIBRARY
Vaccinia virus infected cell. Immunofluorescence deconvolution micrograph of a cell infected with vaccinia virus particles. Viral DNA (deoxyribonucleic acid) is blue and its presence highlights areas of virus assembly within the cell. Actin protein filaments, which make up part of the cytoskeleton, are green. The cytoskeleton maintains the cell's shape and is involved in intracellular transport. The virus uses the actin to propel the newly formed particles out of the cell, forming the protrusions seen here. The tyrosine kinase c-Abl, which is involved in catalysing actin motility, is red.
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