Enzyme catalysis
hideEnzyme catalysis is the catalysis of chemical reactions by specialized proteins known as enzymes. Catalysis of biochemical reactions in the cell is vital due to the very low reaction rates of the uncatalysed reactions.
The mechanism of enzyme catalysis is similar in principle to other types of chemical catalysis. By providing an alternative reaction route and by stabilizing intermediates the enzyme reduces the energy required to reach the highest energy transition state of the reaction. The reduction of activation energy (ΔG) increases the number of reactant molecules with enough energy to reach the activation energy and form the product.
For more information about Enzyme catalysis, read the full article at
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News tagged with enzymatic activity
Fungi May Hold Key to Reducing Grapefruit Juice Interactions with Medications
Nov 17, 2009 |
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(PhysOrg.com) -- A fungus may help solve a problem of a grapefruit compound that interacts negatively with certain prescription drugs, according to studies by Agricultural Research Service (ARS) scientists.
Spinal cord regeneration enabled by stabilizing, improving delivery of scar-degrading enzyme
Nov 02, 2009 |
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Researchers have developed an improved version of an enzyme that degrades the dense scar tissue that forms when the central nervous system is damaged. By digesting the tissue that blocks re-growth of damaged ...
Little-known protein found to be key player
Jul 29, 2009 |
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(PhysOrg.com) -- Italian and U.S. biologists this week report that a little-understood protein previously implicated in a rare genetic disorder plays an unexpected and critical role in building and maintaining ...
Researchers highlight new direction for drug discovery
Jul 05, 2009 |
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In a discovery that rebuffs conventional scientific thinking, researchers at Georgetown University Medical Center (GUMC) have discovered a novel way to block the activity of the fusion protein responsible for Ewing's sarcoma, ...
New piece found in colorectal cancer puzzle
Jun 25, 2009 |
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Prostasin, a relatively unknown protease enzyme expressed in most epithelial cells, may play a role in the genesis of colorectal cancer. Researchers writing in the open access journal BMC Cancer have associated a reduction in the ...
Are you okay to kiss?
May 18, 2009 |
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A quick breath check in the palm of your hand can never give accurate results. Whether you're about to lean in for a smooch or start a job interview, you're better off asking a trusted friend if your breath ...
Genetic abnormality may increase risk of blood disorders
Mar 15, 2009 |
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Researchers at Memorial Sloan-Kettering Cancer Center (MSKCC) have shown for the first time that a tendency to develop some blood disorders may be inherited. Their research, published online today in Nature Genetics, identi ...
Mechanisms that prevent Alzheimer's Disease: Enzymatic activity plays key role
Feb 23, 2009 |
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In a project involving the collaboration of several institutes, research scientists of the Johannes Gutenberg University Mainz have succeeded in gaining further insight in the functioning of endogenous mechanisms that protect ...
