Antagonists & inhibitors
An antagonist is a drug or chemical that reduces the effect of an agonist. Competitive antagonists bind to the same site on a receptor as the agonist but do not activate it - thereby blocking the action of the agonist. Non-competitive antagonists block the action of the agonist by binding to a different site on the receptor (an allosteric or non-agonist site). A reversible antagonist binds non-covalently and can be washed out. An irreversible antagonist binds covalently and cannot be displaced by either competing ligands or washing. Inhibitors are drugs that can bind to a protein, such as an enzyme and decrease its activity. Researchers can save up to 50% on competitive antagonists, non-competitive antagonists, reversible and irreversible antagonists, and inhibitors from Hello Bio - they are up to half the price of other suppliers.
CHIR 99021 trihydrochloride (HB1262)
Description:Potent, selective GSK3 inhibitor and Wnt signaling activator. Commonly used in organoid production and involved in reprogramming MEFs to IPSCs and fibroblasts to mature neurons. Water soluble.
Purity:>98%
p-Chlorophenylalanine (HB1647)
Description:Irreversible tryptophan hydroxylase inhibitor. Depletes 5-HT.
Purity:>99%
(-)-[3R,4S]-Chromanol 293B (HB1076)
Description:Selective delayed rectifier K+ current inhibitor
Purity:>98%