In prokaryotes you can induce foreign protein, normally as inducer uses IPTG. IPTG can`t be replace by bacterium, when it goes inside cells, it can produce a long-lasting induce effect. But inducer where IPTG is the foreign protein has an obvious defect. IPTG has some toxicity, can control bacterial growth, the toxic side effect from bacterial is very obvious and can influence protein`s expression volume; the expression of induced protein is very fast, that is not good for protein folding, it can easily become an inclusion body; IPTG is not able to metabolize and has some toxicity, that`s why can`t agree with an industrialization producing and uses for medicine with engineered protein. Xceler 50 is a new complex reagent combines two functions as an expression of induced protein and stimulated protein synthesis, it`s a new generation protein booster that is better than IPTG. It doesn`t take any toxicity, highly effective foreign protein provides new technology, that is a breakthrough in genetic engineering. There are some main benefits:1.Xceler 50 is fully natural, doesn`t have any toxins, can be used for bacterial, doesn`t leave any toxic residue;2.Xceler 50 improves bacterial growth, induced OD600 makes it higher that IPTG for 50-300%;3.Xceler 50 improved protein expression volume for 50-150% (compare with IPTG);4.After Xceler 50 inducion protein`s solubility is good, inclusion body are few. Different genes are underneath, IPTG and Xceler 50 effects comparative pictures: