Article
Co-evolution of β-glucosidase activity and product tolerance for increasing cellulosic ethanol yield.
Biotechnology letters - 1 Nov 2020
Wang Kexin, Huang Qiuxia, Li Hanxin, Zhao Xihua
Abstract excerpt
β-Glucosidase (BGL) plays a key role in cellulose hydrolysis. However, it is still a great challenge to enhance product tolerance and enzyme activity of BGL simultaneously. Here, we utilized one round error-prone PCR to engineer the Penicillium oxalicum 16 BGL (16BGL) for improving the cellulosic ethanol yield. We identified a new variant (L-6C), a triple mutant (M280T/V484L/D589E), with enhanced catalytic...
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