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Catalytically Perfect Enzymes

Catalytically Perfect Enzymes

The theory of catalytically perfect enzymes was first proposed by W.J. Albery and J. R. Knowles in 1976. These enzymes catalyze biochemical reactions at high-speed. Their catalytic efficiency values range from 108-109 M-1s-1. These enzymes are also called 'diffusion-controlled' as the only rate-limiting step in the catalysis is that of the substrate diffusion into the active site. Examples include triose phosphate isomerase, fumarase, and superoxide dismutase.

Most enzymes...

Introduction to Enzymes

Introduction to Enzymes

The use of enzymes by humans dates to 7000 BCE. Humans first used enzymes to ferment sugars and produce alcohol without knowing that this was an enzyme-catalyzed reaction. Wilhelm Kuhne coined the term 'enzyme' in 1877 from the Greek words ‘en’ meaning ‘in’ or ‘within’ and ‘zyme’ meaning ‘yeast.’
Most enzymes are proteins that speed up biochemical reactions without being consumed. Enzymes contain one or more active sites that...

Enzyme Kinetics

Enzyme Kinetics

Enzymes speed up reactions by lowering the activation energy of the reactants. The speed at which the enzyme turns reactants into products is called the rate of reaction. Several factors impact the rate of reaction, including the number of available reactants. Enzyme kinetics is the study of how an enzyme changes the rate of a reaction.
Scientists typically study enzyme kinetics with a fixed amount of enzyme in the controlled environment of a test tube. When more reactant, or substrate, is...

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Related Experiment Video

Updated: Nov 15, 2025

Modeling an Enzyme Active Site using Molecular Visualization Freeware

Modeling an Enzyme Active Site using Molecular Visualization Freeware

Published on: December 25, 2021

Web-based tools for computational enzyme design.

Sérgio M Marques¹, Joan Planas-Iglesias¹, Jiri Damborsky¹

¹Loschmidt Laboratories, Department of Experimental Biology and RECETOX, Faculty of Science, Masaryk University, Kamenice 5/C13, 625 00 Brno, Czech Republic; International Centre for Clinical Research, St. Anne's University Hospital Brno, Pekarska 53, 656 91 Brno, Czech Republic.

Current Opinion in Structural Biology

|March 5, 2021

Summary

This summary is machine-generated.

Enzyme engineering enhances biocatalyst performance for biotechnology. Recent web tools simplify computational methods, reducing experimental work for researchers seeking improved enzyme properties like stability and activity.

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Published on: July 8, 2025

Area of Science:

Biotechnology and Biochemistry
Computational Biology
Enzyme Engineering

Background:

Enzymes are crucial biocatalysts for diverse biotechnological applications.
Natural enzymes often require engineering to optimize properties such as activity, selectivity, stability, and solubility for specific uses.
Computational methods are increasingly vital for predicting beneficial mutations, significantly reducing experimental effort.

Purpose of the Study:

To review recent outstanding web-based computational tools for enzyme engineering.
To highlight the accessibility and user-friendliness of these platforms for non-expert users.
To discuss future perspectives in the field of computational enzyme engineering.

Main Methods:

Review and description of current web-based computational tools for enzyme engineering.
Emphasis on user-friendliness, accessibility, and reduced experimental burden.
Analysis of how these tools aid in fine-tuning enzyme properties.

Main Results:

Identification of several recent, user-friendly web tools for enzyme engineering.
Demonstration that these platforms significantly narrow down mutation possibilities.
Confirmation of reduced experimental workload through computational predictions.

Conclusions:

Web-based computational tools are making advanced enzyme engineering accessible to a broader scientific audience.
These tools are instrumental in accelerating the development of tailored biocatalysts.
The field is progressing towards more efficient and accessible enzyme optimization strategies.