Diseases, Conditions, Syndromes

Researchers discover molecule involved in the repair of liver wounds

A new study from researchers of CEDOC-NOVA Medical School|Faculdade de Ciências Médicas and Instituto Gulbenkian de Ciência, led by Maria Paula Macedo and Carlos Penha-Gonçalves, respectively, showed that a molecule CD26/DPP-4 ...

Oncology & Cancer

Researchers discover a potential new target for cancer treatment

Dr. Florian Weinberg, from Prof. Dr. Tilman Brummer's research group at the Institute of Molecular Medicine and Cell Research (IMMZ) of the University of Freiburg, joined forces with scientists from the Departments of Clinical ...

Immunology

Study identifies new mechanism for antibacterial immunity

The innate immune system serves as a first-line defense, responding to infections almost immediately after a pathogen makes its way into the body. This response is carried out in two major ways: the cell can amplify the message ...

Medical research

Researchers discover why drug for severe COPD becomes less effective

Roflumilast, a drug recently approved in the United States to treat severe chronic obstructive pulmonary disease (COPD), increases the production of a protein that causes inflammation, which possibly results in patients developing ...

Medical research

Researchers uncover a new role of 'moonlighting' proteins

Although known to regulate fundamental cellular processes in humans, including cell growth, division and programmed cell death, the protein group known as chloride intracellular channel (CLIC) proteins is yet to be fully ...

page 1 from 4

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