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首页> 外文期刊>Applied Microbiology and Biotechnology >Processive and nonprocessive cellulases for biofuel production - Lessons from bacterial genomes and structural analysis
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Processive and nonprocessive cellulases for biofuel production - Lessons from bacterial genomes and structural analysis

机译：用于生产生物燃料的过程性和非过程性纤维素酶-细菌基因组和结构分析的经验教训

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摘要

Cellulases are key enzymes used in many processes for producing liquid fuels from biomass. Currently there many efforts to reduce the cost of cellulases using both structural approaches to improve the properties of individual cellulases and genomic approaches to identify new cellulases as well as other proteins that increase the activity of cellulases in degrading pretreated biomass materials. Fungal GH-61 proteins are important new enzymes that increase the activity of current commercial cellulases leading to lower total protein loading and thus lower cost. Recent work has greatly increased our knowledge of these novel enzymes that appear to be oxido-reductases that target crystalline cellulose and increase its accessibility to cellulases. They appear to carry out the C1 activity originally proposed by Dr Reese. Cellobiose dehydrogenase appears to interact with GH-61 proteins in this function, providing a role for this puzzling enzyme. Cellulase research is making considerable progress and appears to be poised for even greater advances.
机译：纤维素酶是用于从生物质生产液体燃料的许多过程中使用的关键酶。当前，人们进行了许多努力来降低纤维素酶的成本，这两种方法都可以使用结构方法来改善单个纤维素酶的特性，也可以使用基因组方法来鉴定新的纤维素酶以及其他增加纤维素酶降解预处理的生物质材料活性的蛋白质。真菌GH-61蛋白是重要的新酶，可增加当前商业纤维素酶的活性，从而降低总蛋白含量，从而降低成本。最近的工作极大地增加了我们对这些新型酶的了解，这些新型酶似乎是靶向结晶纤维素并增加其对纤维素酶的可及性的氧化还原酶。他们似乎进行了Reese博士最初提出的C1活动。纤维二糖脱氢酶似乎以这种功能与GH-61蛋白相互作用，从而为这种令人费解的酶发挥了作用。纤维素酶的研究正在取得相当大的进展，并且似乎有望取得更大的进步。

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