Microbial metalloenzyme boosts cellulose breakdown

IF 41.7 1区 生物学 Q1 BIOTECHNOLOGY & APPLIED MICROBIOLOGY Nature biotechnology Pub Date : 2025-03-17 DOI:10.1038/s41587-025-02615-x
Iris Marchal
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微生物金属酶促进纤维素分解
植物细胞壁中纤维素的分解是将生物质转化为燃料和化学品的关键步骤,但由于这种物质的复杂晶体结构,仍然具有挑战性。Santos等人在《自然》杂志上撰文,挖掘了微生物群落的“暗物质”,这些微生物群落具有分解纤维素的天然能力,以识别可用于植物生物量降解应用的酶。宏基因组分析是在蔗渣覆盖的土壤样本上进行的,这些土壤样本已经在生物精炼厂附近几十年了,并且含有专门用于植物生物量降解的微生物群落。该群落的一个细菌门含有纤维素氧化裂解酶(CelOCE),当外源添加到工业上使用的优化真菌鸡尾酒中时,该酶促进了预处理蔗渣的解聚。CelOCE是一种金属酶,可以氧化分解纤维素,产生唯一的产物纤维素酸。CelOCE的晶体结构揭示了埋藏在深口袋中的催化铜,其表面扁平,可以结合纤维素。CelOCE在生成过氧化氢方面是自给自足的,过氧化氢是纤维素氧化裂解必不可少的共底物。
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来源期刊
Nature biotechnology
Nature biotechnology 工程技术-生物工程与应用微生物
CiteScore
63.00
自引率
1.70%
发文量
382
审稿时长
3 months
期刊介绍: Nature Biotechnology is a monthly journal that focuses on the science and business of biotechnology. It covers a wide range of topics including technology/methodology advancements in the biological, biomedical, agricultural, and environmental sciences. The journal also explores the commercial, political, ethical, legal, and societal aspects of this research. The journal serves researchers by providing peer-reviewed research papers in the field of biotechnology. It also serves the business community by delivering news about research developments. This approach ensures that both the scientific and business communities are well-informed and able to stay up-to-date on the latest advancements and opportunities in the field. Some key areas of interest in which the journal actively seeks research papers include molecular engineering of nucleic acids and proteins, molecular therapy, large-scale biology, computational biology, regenerative medicine, imaging technology, analytical biotechnology, applied immunology, food and agricultural biotechnology, and environmental biotechnology. In summary, Nature Biotechnology is a comprehensive journal that covers both the scientific and business aspects of biotechnology. It strives to provide researchers with valuable research papers and news while also delivering important scientific advancements to the business community.
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