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Electrolysis in tandem 串联电解
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-24 DOI: 10.1038/s41929-025-01424-4
Benjamin Martindale
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引用次数: 0
From descriptive to quantitative biocatalysis 从描述到定量的生物催化
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-24 DOI: 10.1038/s41929-025-01400-y
Peter Westh, Jeppe Kari
The 1913 study ‘Die Kinetik der Invertinwirkung’, by Michaelis and Menten, marked a pivotal advancement in enzymology by illustrating the application of mechanistic models and quantitative kinetics to biocatalysis. The foundational framework described back then continues to have a strong impact on enzymology, with profound influences that range from undergraduate education to structure–function studies and the format and content of contemporary kinetic databases.
1913年Michaelis和Menten的研究“Die Kinetik der Invertinwirkung”,通过说明机理模型和定量动力学在生物催化中的应用,标志着酶学的关键进步。当时描述的基本框架继续对酶学产生强烈的影响,从本科教育到结构-功能研究以及当代动力学数据库的格式和内容都产生了深远的影响。
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引用次数: 0
Establishing coupling trends 建立耦合趋势
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-24 DOI: 10.1038/s41929-025-01423-5
Marçal Capdevila-Cortada
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引用次数: 0
A TIM-barrel metalloenzyme with sugar-cleavage activity 具有糖裂解活性的tim桶型金属酶
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-24 DOI: 10.1038/s41929-025-01413-7
A TIM-barrel metalloenzyme — Art22 — involved in the sugar-moiety modification of the antibiotic aurantinin B (ART B) has been discovered. This enzyme activates 4-keto ART B to ART B through rapid isomerization. Additionally, Art22 slowly converts ART B into inactive products through oxidative cleavage of the 3-keto hexopyranose.
TIM-barrel金属酶Art22参与了抗生素金菌素B (ART B)的糖基修饰。该酶通过快速异构化激活4-酮ART B到ART B。此外,Art22通过氧化裂解3-酮己糖,缓慢地将ART B转化为无活性产物。
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引用次数: 0
Quantum computing for faster enzyme discovery and engineering 量子计算用于更快的酶发现和工程
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-24 DOI: 10.1038/s41929-025-01410-w
Jiri Damborsky, Petr Kouba, Josef Sivic, Michal Vasina, David Bednar, Stanislav Mazurenko
Quantum computing, by leveraging the unique principles of quantum mechanics, offers transformative potential for biocatalysis and related disciplines. Compared to classical algorithms, quantum algorithms deliver immense acceleration to quantum computers, making them suited for tackling computationally challenging problems such as simulating many-body biomolecular systems or enzyme-catalysed chemical reactions. However, current quantum hardware is constrained by noise, limited qubit coherence and high error rates, restricting its capacity to model complex biochemical phenomena. Here we explore the rapidly advancing landscape of quantum computing and its future applications in the discovery and rational engineering of biocatalysts. We identify key areas where quantum algorithms could surpass classical limitations, including the quantum chemistry-based design of biocatalysts with enhanced catalytic activity or selectivity, parallelized mining of novel enzymes, accurate ancestral sequence reconstruction, and combinatorial in silico protein evolution. Overcoming current hardware limitations could unlock transformative advances in both fundamental enzymology and industrial bioprocessing. Quantum computing is a promising technology to solve complex challenges that would take classical computers an impractical amount of time. This Perspective discusses the current state of quantum computing and possible applications in enzyme engineering and biocatalysis.
量子计算利用量子力学的独特原理,为生物催化和相关学科提供了变革的潜力。与经典算法相比,量子算法为量子计算机提供了巨大的加速,使其适合于解决计算上具有挑战性的问题,如模拟多体生物分子系统或酶催化的化学反应。然而,目前的量子硬件受到噪声、有限的量子比特相干性和高错误率的限制,限制了其模拟复杂生化现象的能力。在这里,我们将探讨量子计算的快速发展前景及其在生物催化剂的发现和合理工程中的未来应用。我们确定了量子算法可以超越经典限制的关键领域,包括基于量子化学的生物催化剂设计,具有增强的催化活性或选择性,新型酶的并行挖掘,精确的祖先序列重建以及组合硅蛋白进化。克服目前的硬件限制,可能会在基础酶学和工业生物处理方面带来革命性的进步。量子计算是一项很有前途的技术,可以解决传统计算机需要大量时间才能解决的复杂挑战。本展望讨论了量子计算的现状及其在酶工程和生物催化中的可能应用。
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引用次数: 0
Substrate promiscuity fuels biosynthesis success 底物的混杂促进了生物合成的成功
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-24 DOI: 10.1038/s41929-025-01419-1
Jan-Stefan Völler
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引用次数: 0
General reactive element-based machine learning potentials for heterogeneous catalysis 多相催化中基于一般反应元素的机器学习潜力
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-23 DOI: 10.1038/s41929-025-01398-3
Changxi Yang, Chenyu Wu, Wenbo Xie, Daiqian Xie, P. Hu
Developing truly universal machine learning potentials for heterogeneous catalysis remains challenging. Here we introduce our element-based machine learning potential (EMLP), trained on a unique random exploration via imaginary chemicals optimization (REICO) sampling strategy. REICO samples diverse local atomic environments to build a representative dataset of atomic interactions, making the EMLP inherently general and reactive, capable of accurately predicting elementary reactions without explicit structural or reaction pathway inputs. We demonstrate the generality and reactivity of our approach by building a Ag-Pd-C-H-O EMLP targeting Pd–Ag catalysts interacting with C/H/O-containing species, achieving quantitative agreement with density functional theory even for complex scenarios such as surface reconstruction, coverage effects and solvent environments, cases for which existing foundation models typically fail. Our method paves the way to replace density functional theory calculations for large and intricate systems in heterogeneous catalysis, and offers a general framework that can readily be extended to other catalytic systems, and to broader fields such as materials science. It is challenging to design machine learning potentials for heterogeneous catalysis that are universal, reactive and have high accuracy. Now, an element-based machine learning potential relying on a random exploration via an imaginary chemicals optimization sampling strategy is put forward, and is successfully demonstrated for a range of applications.
开发真正通用的多相催化机器学习潜力仍然具有挑战性。在这里,我们介绍了基于元素的机器学习潜力(EMLP),它通过假想化学品优化(REICO)采样策略进行独特的随机探索。REICO对不同的局部原子环境进行采样,以建立原子相互作用的代表性数据集,使EMLP具有固有的一般性和反应性,能够在没有明确的结构或反应途径输入的情况下准确预测基本反应。我们通过构建针对Pd-Ag催化剂与含C/H/ o物质相互作用的Ag-Pd-C-H-O EMLP,证明了我们方法的通用性和反应性,即使在表面重建、覆盖效应和溶剂环境等复杂情况下,我们也与密度泛函理论达成了定量一致,这些情况下现有的基础模型通常都是失败的。我们的方法为多相催化中大型复杂系统的密度泛函理论计算铺平了道路,并提供了一个通用框架,可以很容易地扩展到其他催化系统,以及更广泛的领域,如材料科学。设计具有普遍性、反应性和高准确性的多相催化机器学习潜力是一项挑战。现在,提出了一种基于元素的机器学习潜力,该潜力依赖于通过假想化学品优化采样策略进行随机探索,并成功地在一系列应用中得到了证明。
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引用次数: 0
Achieving mono-selective palladium(II)-catalysed C–H activation of arenes with protein ligands 实现单选择性钯(II)催化芳烃与蛋白质配体的碳氢活化
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-08 DOI: 10.1038/s41929-025-01407-5
Hua-Jin Xu, Zhoulong Fan, Bin-Bin Nian, Chen-Hao Gu, Shuo-Jie Shen, Wei Zhang, Yi Hu, Jin-Quan Yu
Achieving mono-selectivity in C–H activation reactions is a considerable challenge when multiple identical C–H bonds coexist. Despite recent rapid advances in site-selective and enantioselective C–H activation, a large number of C–H activation reactions still suffer from poor mono-selectivity. Here we report the use of commercial enzymes as ligands for palladium catalysts, enabling enhanced reactivity and exceptionally high mono-selectivity (up to 99%) in both ortho- and meta-C–H activation of arenes, which originally used bifunctional mono-N-protected amino acid ligands but with poor mono-selectivity. Notably, the Pd–enzyme complex was identified as the active catalyst species. Mechanistic investigations and structural analyses of the enzymes suggest that the enzyme primary structure, the sequence length and the percentage of amino acids with hydrophobic side chains are critical for achieving mono-selectivity. By leveraging these findings, we further developed a glycine-containing oligopeptide capable of achieving similarly high mono-selectivity. Molecular organometallic catalysts typically struggle to activate only one of two identical C–H bonds in arenes for mono-selective C–H activation. Now mono-selectivity has been achieved for Pd(II)-catalysed ortho- or meta-C–H activations using commercial proteins or designed peptides as ligands.
当多个相同的碳氢键共存时,在碳氢活化反应中实现单选择性是相当大的挑战。尽管近年来在位点选择性和对映选择性C-H活化方面进展迅速,但大量的C-H活化反应仍然存在较差的单选择性。在这里,我们报告了使用商业酶作为钯催化剂的配体,在芳烃的邻位和间碳氢活化中增强了反应活性和极高的单选择性(高达99%),而芳烃最初使用双功能单n保护氨基酸配体,但单选择性较差。值得注意的是,pd -酶配合物被确定为活性催化剂。酶的机制研究和结构分析表明,酶的一级结构、序列长度和疏水侧链氨基酸的百分比是实现单选择性的关键。利用这些发现,我们进一步开发了一种含有甘氨酸的寡肽,能够实现类似的高单选择性。
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引用次数: 0
Microenvironment effects in electrochemical CO2 reduction from first-principles multiscale modelling 电化学CO2还原中的微环境效应:第一原理多尺度模拟
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-08 DOI: 10.1038/s41929-025-01399-2
Francesca Lorenzutti, Ranga Rohit Seemakurthi, Evan F. Johnson, Santiago Morandi, Pavle Nikačević, Núria López, Sophia Haussener
Electrochemical CO2 reduction is expected to become a key player in net-zero technologies, yet its industrial implementation is currently limited. Improvements based on fine-tuning microenvironments (that is, electrolyte environments around catalytic sites) have been scarce due to the interplay between electrode kinetics and transport. Here we couple atomistic insights with continuum transport via ab initio multiscale modelling, explicitly including electrolyte effects at all scales. The resulting model is validated on silver planar electrodes in several liquid electrolytes, and the current dependence with voltage aligns with experimental observations. We show that a balance between CO2 diffusion and cation accumulation needs to be achieved to obtain optimal rates. In ionomers, this limitation can be overcome since organic cation-based microenvironments are present at a fixed concentration, but water management becomes critical. Our approach paves the way towards rational microenvironment design in electrochemical CO2 conversion. Optimizing devices for electrochemical CO2 reduction requires a comprehensive and quantitative understanding of the microenvironments where the reactions occur. Now, a multiscale modelling approach that explicitly accounts for electrolyte effects at all scales is developed and showcased for the electroreduction of CO2 on silver.
电化学二氧化碳减排有望成为净零排放技术的关键参与者,但其工业实施目前受到限制。由于电极动力学和传输之间的相互作用,基于微调微环境(即催化位点周围的电解质环境)的改进很少。在这里,我们通过从头算多尺度模型将原子的洞察力与连续输运结合起来,明确地包括所有尺度上的电解质效应。该模型在几种液体电解质中的银平面电极上进行了验证,电流与电压的依赖关系与实验观察结果一致。我们表明,需要在CO2扩散和阳离子积累之间取得平衡,以获得最佳速率。在离聚物中,这种限制可以克服,因为有机阳离子微环境以固定浓度存在,但水管理变得至关重要。我们的方法为电化学CO2转化中合理的微环境设计铺平了道路。
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引用次数: 0
Enantioselective radical α-enolation of esters via electrochemical chiral isothiourea catalysis 电化学手性异硫脲催化对映选择性自由基α-烯醇化酯
IF 44.6 1区 化学 Q1 CHEMISTRY, PHYSICAL Pub Date : 2025-09-08 DOI: 10.1038/s41929-025-01408-4
Ning Li, Xuzhen Ye, Yong Liu, Jin Song
Carboxylic ester motifs are prevalent in biological, chemical and materials sciences, and the asymmetric α-functionalization of simple esters plays a crucial role in the field of organic synthesis. Here we present a versatile electricity-driven asymmetric Lewis base catalysis strategy for the oxidative radical cross-coupling of simple esters with silyl enol ethers. This approach integrates the electrochemical anodic oxidation process with chiral isothiourea catalysis, enabling a polarity inversion at the nucleophilic carbon of the enolate to trigger the formation of a chiral isothiourea-bound α-carbonyl radical species from a C1-ammonium enolate. The combination of asymmetric Lewis base catalysis and electrochemistry unlocks mild oxidative radical coupling reactions, achieving up to 98% enantiomeric excess and demonstrating broad substrate compatibility. This work underscores the synthetic potential of the approach and provides a platform for advancing asymmetric electrosynthesis. Strategies for asymmetric control in electrosynthesis involving radicals are sought after. Now asymmetric Lewis base catalysis is combined with electrochemistry, enabling the oxidative radical cross-coupling of esters with silyl enol ethers and affording γ-keto esters in high enantiomeric excess.
羧基酯基序在生物、化学和材料科学中普遍存在,简单酯的不对称α-功能化在有机合成领域起着至关重要的作用。在这里,我们提出了一种通用的电驱动的不对称路易斯碱催化策略,用于简单酯与硅烯醇醚的氧化自由基交叉偶联。该方法将电化学阳极氧化过程与手性异硫脲催化相结合,使烯酸酯的亲核碳极性倒置,从而触发c1 -铵烯酸酯形成手性异硫脲结合的α-羰基自由基。不对称路易斯碱催化和电化学的结合开启了温和的氧化自由基偶联反应,实现了高达98%的对映体过剩,并展示了广泛的底物兼容性。这项工作强调了该方法的合成潜力,并为推进不对称电合成提供了一个平台。
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Nature Catalysis
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