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

A new non-azole inhibitor of ABA 8'-hydroxylase: Effect of the hydroxyl group substituted for geminal methyl groups in the six-membered ring.

We designed and synthesized AHI4 that has an axial hydroxyl group instead of geminal methyl groups at C-6' of AHI1, previously reported as a lead compound for the development of non-azole inhibitors of ABA 8'-hydroxylase. (+)-AHI4 competitively inhibited 8'-hydroxylation of ABA by recombinant CYP707A3. The K(I) value was found to be 0.14muM, 10-fold less than that of (+)-AHI1, suggesting that enzyme affinity increased by a factor of 10 due to substitution of the hydroxyl group by the geminal methyls at C-6'. This finding should assist in the design of more effective, non-azole ABA 8'-hydroxylase inhibitors.[1]

References

  1. A new non-azole inhibitor of ABA 8'-hydroxylase: Effect of the hydroxyl group substituted for geminal methyl groups in the six-membered ring. Araki, Y., Miyawaki, A., Miyashita, T., Mizutani, M., Hirai, N., Todoroki, Y. Bioorg. Med. Chem. Lett. (2006) [Pubmed]
 
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