HEK 293 cells may vary. The following proteins of interest (among many others) are commonly found in untreated HEK 293 cells: HEK 293 cells Human embryonic kidney 293 cells, also often referred to as HEK 293, HEK-293, 293 cells, or less precisely as HEK cells, are a specific cell line originally derived from human embryonic kidney cells grown in tissue culture. HEK 293 cells have been widely used in cell biology research for many years, because of their reliable growth and propensity for transfection. They are also used by the biotechnology industry to produce therapeutic proteins and viruses for gene therapy. HEK 293
How to Eat Like a Child but the musical variety nature of the program, the hook for adults in prime time, was lost on them completely." However, he, too, would go on to praise some of the elements of the special, writing, "There were some highlights. A fantasy imitation of Rolling Stone, Mick Jagger from a kid (Georg Olden) tired of practicing the violin (and) all the different ways parents say 'no'." After the television premiere of "How to Eat Like a Child", the musical was subsequently adapted for the stage as a one-act musical revue performed exclusively by children, using songs from the original NBC