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We have determined the kinetic parameters of the individual steps of the threonine pathway from aspartate in Escherichia coli under a single set of experimental conditions chosen to be physiologically relevant. Our aim was to summarize the kinetic behaviour of each enzyme in a single tractable equation that takes into account the effect of the products as(More)
A new semisynthetic anti-tumour bis-indol compound, KAR-2 [3'-(beta-chloroethyl)-2',4'-dioxo-3,5'-spiro-oxazolidino-4-dea cetoxy-vinblastine] with lower toxicity than vinca alkaloids used in chemotherapy binds to calmodulin but, in contrast to vinblastine, does not exhibit anti-calmodulin activity. To investigate whether the modest chemical modification of(More)
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