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Human cells light up with green fluorescent markers after being penetrated by a genetically engineered virus coated with the VSV envelope protein

How does a helpful virus often used for gene therapy break into cells?

Microscope image of embryonic zebrafish blood vessels

A newly discovered protein ties cholesterol to blood vessel formation

Arabidopsis leaves with and without cholesterol

The biochemical steps to making cholesterol in plants turn out to be surprisingly similar to those in animals