Enzyme Inhibitor
Enzyme Inhibitor — A molecule that reduces or blocks enzyme activity through competitive, non-competitive, or uncompetitive mechanisms, a common class of bioactive peptides.
What Is an Enzyme Inhibitor?
An enzyme inhibitor is a molecule that reduces or abolishes enzyme activity. Peptide-based enzyme inhibitors mimic the natural substrate and bind the active site (competitive) or an allosteric site (non-competitive). Peptide protease inhibitors are important drugs for HIV, hypertension (ACE inhibitors), and diabetes (DPP-IV inhibitors).
Types
- Competitive: Binds active site. Increasing substrate overcomes inhibition. Ki measured
- Transition-state: Mimics transition state geometry. Tighter binding than substrate analogs
- Mechanism-based: Enzyme converts inhibitor to reactive species that inactivates the enzyme irreversibly
Frequently Asked Questions
What is Enzyme Inhibitor?
A molecule that reduces or blocks enzyme activity through competitive, non-competitive, or uncompetitive mechanisms, a common class of bioactive peptides.
Why is Enzyme Inhibitor important in peptide research?
Enzyme Inhibitor is a fundamental concept in pharmacology as it relates to peptide science. It directly influences experimental design, compound characterization, and the reliability of research outcomes across biochemistry and molecular biology disciplines.
Authority Sources
- Enzyme Inhibitor on Wikipedia
- Search Enzyme Inhibitor on PubChem (NIH)
- Research articles on ScienceDirect