News tagged with enzymatic activity

Colon cancer screening: Immunological tests are superior

Tests for hidden traces of blood ("occult blood") in the stool provide clues to colon cancer or precancerous lesions. For over 40 years, an enzymatic detection method has been used to detect the diseases. Now immunological ...

May 28, 2013
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Cold winters freezing out breast cancer treatment

For women diagnosed with a form of breast cancer known as estrogen receptor positive (ER+) breast cancer, tamoxifen is an essential drug used in the treatment and prevention of recurring breast cancer. Currently, tamoxifen ...

Apr 18, 2013
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Enzyme catalysis

Enzyme 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.

This text uses material from Wikipedia licensed under CC BY-SA