Enzymatic Formation of
Indole-Containing Unnatural Cyclic
Polyprenoids by Bacterial
Squalene:Hopene Cyclase
Posted on 2005-12-22 - 00:00
Two indole-containing substrate analogues, in which a C20 isoprene unit is connected to indole (3-(geranylgeranyl)indole and 3-(farnesyldimethylallyl)indole), were synthesized and tested for enzymatic cyclization by squalene:hopene cyclase from Alicyclobacillus acidocaldarius.
Interestingly, 3-(geranylgeranyl)indole was not a substrate for the bacterial squalene cyclase, while 3-(farnesyldimethylallyl)indole was efficiently
converted to a 2:1 mixture of unnatural novel products.