Cell transfection & transformation are important to anyone studying the effects & regulation of genes and their encoded proteins. Active Motif offers several innovative tools for these areas of research, including the LightSwitch? Luciferase Assay System for measuring the functional activity of promoters and 3′UTRs in living mammalian cells, and the novel protein delivery reagent Chariot?, which efficiently transports biologically active proteins, peptides, and antibodies directly into living cells.