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 cells were generated in 1973 by transfection of cultures of normal human embryonic kidney cells with sheared adenovirus
How Many More Years Midnight", described by Phillips as "the most different record I ever heard", was probably recorded at a different session. Phillips had not yet set up Sun Records and regularly leased his recordings to the Chess label in Chicago. The record was issued as Chess 1479 on 15 September 1951, with "Moanin' at Midnight" as the A-side and "How Many More Years" as the B-side. "Moanin' at Midnight" entered the R&B chart on 10 November 1951, and was followed four weeks later by "How Many More Years", which became the more popular side and rose to no.4 on the chart. The