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Streptomyces cattleya produced a new cyclopentenedione antibiotic, G2201-C [C6H6O4(I)], which is moderatley active in vitro against Gram-positive bacteria, weakly active against Gram-negative bacteria, and inactive against fungi. G2201-C is toxic to mice.
Antibiotic G7063-2, isolated from a Streptomyces species, is a new nitrogen-containing analogue of phyllostine and terreic acid. In vitro G7063-2 is moderately active against both Gram-positive and Gram-negative bacteria and weakly active against fungi. It is toxic to mice.
Irreversible inhibitors that modify cysteine or lysine residues within a protein kinase ATP binding site offer, through their distinctive mode of action, an alternative to ATP-competitive agents. 4-((6-(Cyclohexylmethoxy)-9H-purin-2-yl)amino)benzenesulfonamide (NU6102) is a potent and selective ATP-competitive inhibitor of CDK2 in which the sulfonamide… (More)