THE DEFINITIVE GUIDE TO POS88

to check the effects of multiple constraints on mutational tolerance throughout range, we chose E. coli dihydrofolate reductase (DHFR) to be a model process. DHFR is An important enzyme in just folate metabolism that lessens dihydrofolate to tetrahydrofolate and is needed for thymidine manufacturing. utilizing this action as The idea for an in vivo