Structural enzyme heterogeneity as expressed by differentiated regulation during the phases of the cell cycle.
D002455:Cell Division; D006367:HeLa Cells / Q000187:drug effects / Q000201:enzymology*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D009952:Ornithine; D013936:Thymidine / Q000494:pharmacology; D013997:Time Factors; D000637:Transaminases / Q000378:metabolism*
D009952:Ornithine; D000637:Transaminases; D013936:Thymidine