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Fig. 2 | Microbial Cell Factories

Fig. 2

From: Screening and evaluation of the strong endogenous promoters in Pichia pastoris

Fig. 2

Comparison of the selected promoter activities. AC The β-galactosidase activity of transformant harboring vector pZeocin/PXXX-lacZ-TADH1 (PXXX indicates the name of candidate promoter) after 60 h growth. DF The relative transcriptional levels of lacZ in different transformants. The ACT1 gene was used as the reference gene. Error bars indicate the SD for samples tested in triplicate

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