Heike Emmerich

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The association of ponasterone A (PNA) and 20-hydroxyecdysone with Kc cells is commensurate with their biological activity on this Kc cell line, the physiological activity ratio for PNA, 20-hydroxyecdysone and ecdysone is 1 : 50 : 2000, resp. Both association and release of [3H]-PNA are temperature-dependent, the activation energy was calculated as 16.7 cal(More)
Several derivatives of the arthropod moulting hormone have been synthesized which were coupled to AH Sepharose 4B yielding about 2 mumole ligand per g wet gel. As an indication of the suitability of the ligands for biological work the puff inducing capacity of their methyl esters was tested. The methyl ester of inokosterone-C-26-carboxylic acid possesses(More)
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