THE BASIC PRINCIPLES OF ANTIBODY EXPRESSION

synthesis of pyrimidines and purines (five-aminimidazolium-4-formamide ribosylnucleotide transferase/IMP cyclic hydrolase [ATIC], respectively). The survival of these bistrotrophic cells relies on The supply of purine and pyrimidine sources or perhaps the transfection and integration in the open looking through frame that encodes these two enzymes.