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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 

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Methionine metabolism in BHK cells: preliminary characterization of the physiological effects of cycloleucine, an inhibitor of s-adenosylmethionine biosynthesis.

Cycloleucine is in vitro a competitive inhibitor of methionine adenosyltransferase, an enzyme involved in S-adenosylmethionine biosynthesis. The physiological effects of this drug on baby hamster kidney cells have been studied. When cells are grown in a medium containing 10 micron methionine, cycloleucine is an inhibitor of cell proliferation; high concentrations of methionine are able to withdraw this inhibition suggesting that cycloleucine toxicity is related to methionine metabolism. The drug does not primarily affect methionine uptake and its subsequent use for protein biosynthesis. Cycloleucine toxicity is correlated with a block of SAM biosynthesis and nucleic acids methylations. The actions of cycloleucine on progression in the cell cycle and DNA, RNA and protein biosynthesis are studied. The implications of these results are discussed.[1]

References

  1. Methionine metabolism in BHK cells: preliminary characterization of the physiological effects of cycloleucine, an inhibitor of s-adenosylmethionine biosynthesis. Caboche, M., Hatzfeld, J. J. Cell. Physiol. (1978) [Pubmed]
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