Fig. 1From: Point mutation of V252 in neomycin C epimerase enlarges substrate-binding pocket and improves neomycin B accumulation in Streptomyces fradiaeOptimization of the conjugation conditions between strain SF-2 and E. coli. A Effect of A medium, B metal ions species and concentration, C heat shock conditions, D antibiotic addition time, and E donor:receptor cells ratio on conjugation frequencyBack to article page