Enzyme engineering in the age of artificial intelligence

KANG Liqi; TAN Pan; HONG Liang

doi:10.12211/2096-8280.2023-009

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Enzyme engineering in the age of artificial intelligence

Invited Review | 更新时间：2025-03-20

- Enzyme engineering in the age of artificial intelligence
- Synthetic Biology Journal Vol. 4, Issue 3, Pages: 524-534(2023)
- 作者机构：
  
  1.上海交通大学物理与天文学院，上海 200240
  2.上海交通大学自然科学研究院，上海国家应用数学中心（交大分中心），上海 200240
  3.上海人工智能实验室，上海 200240
- 作者简介：
- 基金信息：
- DOI：10.12211/2096-8280.2023-009
  CLC： Q814
- Received：16 January 2023，
  
  Revised：2023-03-29，
  
  Published：30 June 2023
- 稿件说明：
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康里奇，谈攀，洪亮. 人工智能时代下的酶工程［J］. 合成生物学， 2023， 4（3）： 524-534

KANG Liqi， TAN Pan， HONG Liang. Enzyme engineering in the age of artificial intelligence［J］. Synthetic Biology Journal， 2023， 4（3）： 524-534
康里奇，谈攀，洪亮. 人工智能时代下的酶工程［J］. 合成生物学， 2023， 4（3）： 524-534 DOI： 10.12211/2096-8280.2023-009.

KANG Liqi， TAN Pan， HONG Liang. Enzyme engineering in the age of artificial intelligence［J］. Synthetic Biology Journal， 2023， 4（3）： 524-534 DOI： 10.12211/2096-8280.2023-009.

摘要

自然界中存在的酶拥有多种多样的功能，它们已经被应用在工业生产和学术研究中，但其中许多酶的性质和功能还不能完全满足应用需要，通过改造来提升这类酶的某些特性是酶工程的重要任务。本文介绍了酶工程的主要发展历程，并重点梳理了人工智能（AI）助力酶工程领域的研究进展。酶工程主要包括理性设计、定向进化、半理性设计和人工智能辅助设计等策略。理性设计方法根据酶的催化机理、结构等先验知识进行改造。定向进化技术通过构建随机突变文库和高通量筛选提升目标酶的稳定性和活性等性质。半理性设计方法借助一系列计算方法构建相比于定向进化更小也更合理的突变文库以降低筛选工作量。人工智能技术在大量数据驱动下可以学习有关蛋白质构成和进化的特征信息。通过直接学习自然界中存在的蛋白质序列、共进化信息和结构，深度神经网络已经可以解决许多类型的酶工程问题，如预测具有有益影响的突变、优化蛋白质的稳定性、提高催化活性等。通过对酶工程现状进行分析，本文旨在进一步推动酶的开发和优化以实现更广泛的应用，为研究者和相关从业人员提供更多有价值的见解。

Abstract

Enzymes have garnered significant attention in both research and industry due to their unparalleled specificity and functionality

and thus opportunities remain for enhancing their physichemical properties and fitness to improve catalytic performance. The primary objective of enzyme engineering is to optimize the fitness of targeted enzymes through various strategies for their modifications

even redesigning. This review provides a comprehensive overview for progress made in enzyme engineering

with a focus on artificial intelligence (AI)-guided design methodology. Several key strategies have been employed in enzyme engineering

including rational design

directed evolution

semi-rational design

and AI-guided design. Rational design relies on an extensive knowledge based on encompassing protein structures and catalytic mechanisms

allowing for purposeful manipulations of enzyme properties. Directed evolution

on the other hand

involves the generation of a library of random variants for subsequent high-throughput screening to identify beneficial mutations. Semi-rational design combines rational design and directed evolution

resulting in a smaller

yet more targeted

library of variants

which mitigates high cost associated with extensive screening of large libraries developed through directed evolution. In recent years

AI technologies

particularly deep neural networks

have emerged as a promising approach for enzyme engineering

and AI-guided methods leverage a vast amount of information regarding protein sequences

multiple sequence alignments

and protein structures to learn key features for correlations. These learned features can then be applied to various downstream tasks in enzyme engineering

such as predicting mutations with beneficial effect

optimizing protein stability

and enhancing catalytic activity. Herewith

we delves into advancements and successes in each of these strategies for enzyme engineering

highlighting the growing impact of AI-guided design on the process. By offering a detailed examination of the current state of enzyme engineering

we aim at providing valuable insight for researchers and engineers to further advance the development and optimization of enzymes for more applications.

关键词

Keywords

references

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