title: Kinetics of tryptophanase inactivation/activation by sudden removal/addition of potassium ions with the aid of a crown ether or cryptand.
mesh_terms: D001643:Bridged Bicyclo Compounds / Q000494:pharmacology*; D019086:Bridged Bicyclo Compounds, Heterocyclic; D001952:Bridged-Ring Compounds / Q000494:pharmacology*; D043844:Crown Ethers; D004789:Enzyme Activation; D004926:Escherichia coli / Q000201:enzymology; D004988:Ethers, Cyclic / Q000494:pharmacology*; D005001:Ethionine / Q000378:metabolism; D007700:Kinetics; D008190:Lyases / Q000378:metabolism*; D011188:Potassium / Q000494:pharmacology*; D013053:Spectrophotometry; D014368:Tryptophanase / Q000037:antagonists & inhibitors / Q000378:metabolism*
chemical_list: D001643:Bridged Bicyclo Compounds; D019086:Bridged Bicyclo Compounds, Heterocyclic; D001952:Bridged-Ring Compounds; D043844:Crown Ethers; D004988:Ethers, Cyclic; C006071:cryptating agent 222; C015762:18-crown-6; D008190:Lyases; D014368:Tryptophanase; D011188:Potassium; D005001:Ethionine