From: Protein Function
NCBI Bookshelf. A service of the National Library of Medicine, National Institutes of Health.
Alberts B, Johnson A, Lewis J, et al. Molecular Biology of the Cell. 4th edition. New York: Garland Science; 2002.
Molecular Biology of the Cell. 4th edition.
Show detailsTable 3-1Some Common Types of Enzymes
| ENZYME | REACTION CATALYZED |
|---|---|
| Hydrolases | general term for enzymes that catalyze a hydrolytic cleavage reaction. |
| Nucleases | break down nucleic acids by hydrolyzing bonds between nucleotides. |
| Proteases | break down proteins by hydrolyzing bonds between amino acids. |
| Synthases | general name used for enzymes that synthesize molecules in anabolic reactions by condensing two smaller molecules together. |
| Isomerases | catalyze the rearrangement of bonds within a single molecule. |
| Polymerases | catalyze polymerization reactions such as the synthesis of DNA and RNA. |
| Kinases | catalyze the addition of phosphate groups to molecules. Protein kinases are an important group of kinases that attach phosphate groups to proteins. |
| Phosphatases | catalyze the hydrolytic removal of a phosphate group from a molecule. |
| Oxido-Reductases | general name for enzymes that catalyze reactions in which one molecule is oxidized while the other is reduced. Enzymes of this type are often called oxidases, reductases, and dehydrogenases. |
| ATPases | hydrolyze ATP. Many proteins with a wide range of roles have an energy-harnessing ATPase activity as part of their function, for example, motor proteins such as myosin and membrane transport proteins such as the sodium–potassium pump. |
Enzyme names typically end in “-ase,” with the exception of some enzymes, such as pepsin, trypsin, thrombin and lysozyme that were discovered and named before the convention became generally accepted at the end of the nineteenth century. The common name of an enzyme usually indicates the substrate and the nature of the reaction catalyzed. For example, citrate synthase catalyzes the synthesis of citrate by a reaction between acetyl CoA and oxaloacetate.
- Table 3-1, Some Common Types of Enzymes - Molecular Biology of the CellTable 3-1, Some Common Types of Enzymes - Molecular Biology of the Cell
Your browsing activity is empty.
Activity recording is turned off.
See more...