competitive inhibitor

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• Competitive inhibition — is a form of enzyme inhibition where binding of the inhibitor to the active site on the enzyme prevents binding of the substrate and vice versa. Contents 1 Mechanism 2 Equation 3 Derivation 4 …   Wikipedia

• competitive inhibition — Inhibitor that occupies the active site of an enzyme or the binding site of a receptor and prevents the normal substrate or ligand from binding. At sufficiently high concentration of the normal ligand inhibition is lost: the Km is altered by the… …   Dictionary of molecular biology

• non-competitive inhibitor — Reversible inhibition of an enzyme by a compound that binds at a site other than the substrate binding site …   Dictionary of molecular biology

• competitive inhibition — inhibition of enzyme activity in which the inhibitor (substrate analogue) reversibly combines with catalytic sites, thus competing with the substrate for binding on the enzyme. The inhibition is reversible since it can be overcome by increasing… …   Medical dictionary

• Enzyme inhibitor — Enzyme inhibitors are molecules that bind to enzymes and decrease their activity. Since blocking an enzyme s activity can kill a pathogen or correct a metabolic imbalance, many drugs are enzyme inhibitors. They are also used as herbicides and… …   Wikipedia

• Non-competitive inhibition — is a type of enzyme inhibition where the inhibitor reduces the activity of the enzyme, by binding not to the active site on the enzyme, but to a different site.[1] More specifically, it is a special instance of mixed inhibition where the… …   Wikipedia

• Reuptake inhibitor — Escitalopram, a selective serotonin reuptake inhibitor (SSRI) used as an antidepressant. A reuptake inhibitor (RI), also known as a transporter blocker, is a drug that inhibits the plasmalemmal transporter mediated reuptake of a neurotransmitter… …   Wikipedia

• Phosphodiesterase inhibitor — A phosphodiesterase inhibitor is a drug that blocks one or more of the five subtypes of the enzyme phosphodiesterase (PDE), therefore preventing the inactivation of the intracellular second messengers cyclic adenosine monophosphate (cAMP) and… …   Wikipedia

• Alpha-glucosidase inhibitor — Alpha glucosidase inhibitors are oral anti diabetic drugs used for diabetes mellitus type 2 that work by preventing the digestion of carbohydrates (such as starch and table sugar). Carbohydrates are normally converted into simple sugars… …   Wikipedia

• PDE4 inhibitor — Piclamilast, a common PDE4 inhibitor A phosphodiesterase type 4 inhibitor, commonly referred to as a PDE4 inhibitor, is a drug used to block the degradative action of phosphodiesterase 4 (PDE4) on cyclic adenosine monophosphate (cAMP). It is a… …   Wikipedia

• Reverse-transcriptase inhibitor — Reverse transcriptase inhibitors (RTIs) are a class of antiretroviral drug used to treat HIV infection, tumors,[1] and cancer.[2] RTIs inhibit activity of reverse transcriptase, a viral DNA polymerase enzyme that retroviruses need to reproduce.… …   Wikipedia