Fluorogenic Substrates

[Louis Hom]

So, I know that amino coumarins can be used as fluorogenic substrates to 
detect amide cleavage, and that hydroxy coumarins can similarly be used to 
detect ester cleavage.  Does anyone know whether thio/mercapto coumarins 
can be used to directly detect thioester cleavage?
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______________________________________________________________________________
Lou Hom >K'93			     
lhom at ocf.berkeley.edu		
http://www.ocf.berkeley.edu/~lhom/