Related Experiment Video
Updated: Feb 7, 2026

05:33
Author Spotlight: Characterizing Novel Enzymes from Extremophiles and Common Pathogens to Understand DNA Repair and Replication
Published on: July 5, 2024
1.4K
Enzyme Annotation and Metabolic Reconstruction Using KEGG.
1Institute for Chemical Research, Kyoto University, Gokasho, Uji, Kyoto, 611-0011, Japan. kanehisa@kuicr.kyoto-u.ac.jp.
Methods in Molecular Biology (Clifton, N.J.)
|April 29, 2017
Summary
KEGG Orthology (KO) links gene sequences to biological functions. This study presents methods using KEGG tools like BlastKOALA for enzyme annotation and metabolic reconstruction.
Area of Science:
- Bioinformatics
- Systems Biology
- Genomics
Background:
- KEGG is a comprehensive database resource.
- It integrates sequence data with biological functions at multiple levels.
- KEGG Orthology (KO), PATHWAY, MODULE, and GENES databases store functional and genomic information.
Purpose of the Study:
- To present knowledge-based prediction methods for functional characterization of amino acid sequences.
- To demonstrate the utility of KEGG tools for biological data analysis.
Main Methods:
- Utilizing the KEGG resource for functional annotation.
- Employing BlastKOALA for sequence similarity searching against KEGG Orthology.
- Using KEGG Mapper for pathway and module reconstruction.
Main Results:
- Developed and presented methods for predicting biological functions from amino acid sequences.
- Demonstrated successful enzyme annotation using KEGG tools.
- Showcased the application of KEGG Mapper for metabolic reconstruction.
Conclusions:
- KEGG provides a robust framework for linking genomic information to functional insights.
- KEGG tools like BlastKOALA and KEGG Mapper are effective for functional characterization and metabolic pathway analysis.
Related Concept Videos
Enzyme Inhibition
92.6K
Inhibitors are molecules that reduce enzyme activity by binding to the enzyme. In a normally functioning cell, enzymes are regulated by a variety of inhibitors. Drugs and other toxins can also inhibit enzymes. Some inhibitors bind to the enzyme’s active site, while others inhibit enzymatic activity by binding to other sites on the protein structure.
92.6K
Genome Annotation and Assembly
21.0K
The genome refers to all of the genetic material in an organism. It can range from a few million base pairs in microbial cells to several billion base pairs in many eukaryotic organisms. Genome assembly refers to the process of taking the DNA sequencing data and putting it all back together in a correct order to create a close representation of the original genome. This is followed by the identification of functional elements on the newly assembled genome, a process called genome annotation.
21.0K
Enzymes
94.9K
Inside living organisms, enzymes act as catalysts for many biochemical reactions involved in cellular metabolism. The role of enzymes is to reduce the activation energies of biochemical reactions by forming complexes with its substrates. The lowering of activation energies favor an increase in the rates of biochemical reactions.
Enzyme deficiencies can often translate into life-threatening diseases. For example, a genetic abnormality resulting in the deficiency of the enzyme G6PD...
Enzyme deficiencies can often translate into life-threatening diseases. For example, a genetic abnormality resulting in the deficiency of the enzyme G6PD...
94.9K
What is Metabolism?
132.0K
Overview
132.0K
Enzyme Kinetics
104.2K
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...
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...
104.2K
Enzyme-linked Receptors
86.7K
Enzyme-linked receptors are proteins that act as both receptor and enzyme, activating multiple intracellular signals. This is a large group of receptors that include the receptor tyrosine kinase (RTK) family. Many growth factors and hormones bind to and activate the RTKs.
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
Neurotrophin (NT) receptors are a family of RTKs, including trkA, trkB, and trkC (tropomyosin-related kinase) receptors. TrkA is specific for nerve growth factor (NGF), neurotrophin-6, and neurotrophin-7. TrkB binds...
86.7K

