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Fig. 6 | Microbial Cell Factories

Fig. 6

From: Development of an auto-inducible expression system by nitrogen sources switching based on the nitrogen catabolite repression regulation

Fig. 6

Secretory expression of xylanase by NSAES. a Comparison of XynA in NSAES and a strong constitutive expression system in the 80 mM NO3− condition. b XynA activity in difference of NO3−/NH4+ concentrations. c Biomass of A.n-PniaD-XynA in difference of NO3−/NH4+ concentrations. d SDS-PAGE analysis of expressed XynA. 1, 2, 3, XynA expression at 48 h in NO3−/NH4+ concentration of 80/0, 80/20 and 0/20; 4, 5, 6, XynA expression at 72 h in NO3−/NH4+ concentration of 80/0, 80/20 and 0/20; Mark:70, 50, 40, 35, 25 and 15 kDa

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