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 Make a Spaceship the one headed by Paul Allen and Burt Rutan, of SpaceShipOne. The book ends with an epilogue about Richard Branson's Virgin Galactic scooping up the SpaceShipOne technology, and the spaceplane itself ending up in the Smithsonian National Air and Space Museum. The book includes a preface by Richard Branson, and an afterword by Stephen Hawking. The book was originally entitled ""Beyond: Peter Diamandis and the Adventure of Space"", when it was sold preemptively to Penguin Books in 2014. "How to Make a Spaceship" was released in September 2016, in trade paperback, hardcover, audio book and e-book formats. The work was