期刊
NATURE COMMUNICATIONS
卷 7, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms11134
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资金
- Danish Council for Independent Research
- VILLUM Center of Excellence Plant Plasticity
- bioSYNergy by the UCPH Excellence Programme for Interdisciplinary Research
- Plant Power: Light-Driven Synthesis of Complex Terpenoids Using Cytochromes by the Danish Council for Strategic Research, Programme Commission on Strategic Growth Technologies [P450 (12-131834)]
- Danish Council for Independent Research-Technology and Production Sciences
- Nordic Energy Research project AquaFEED-Conversion of solar energy
- Villum Fonden [00007523] Funding Source: researchfish
Oxidative processes are essential for the degradation of plant biomass. A class of powerful and widely distributed oxidative enzymes, the lytic polysaccharide monooxygenases (LPMOs), oxidize the most recalcitrant polysaccharides and require extracellular electron donors. Here we investigated the effect of using excited photosynthetic pigments as electron donors. LPMOs combined with pigments and reducing agents were exposed to light, which resulted in a never before seen 100-fold increase in catalytic activity. In addition, LPMO substrate specificity was broadened to include both cellulose and hemicellulose. LPMO enzymes and pigment derivatives common in the environment of plant-degrading organisms thus form a highly reactive and stable light-driven system increasing the turnover rate and versatility of LPMOs. This light-driven system may find applications in biotechnology and chemical processing.
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