Hi all,

Sorry for the incredibly dumb and off topic question. I've been doing some 
steady state michaelis menten kinetics, and no one around me has ever done it 
before. My own classroom training was years ago and so I've forgotten a great 
deal and have just been going from old textbooks/papers.

So my assay is so far fixed [enzyme] and varied substrate, and I do my reaction 
for an hour, and then I get a concentration of product produced from UV. Is my 
initial velocity at each concentration point just product(uM)/90 minutes/60 
seconds? 

I'm just doubting my work only because my calculated Kcat's are somewhere in 
the range of 0.0001 s-1, which just seems incredibly off especially when 
compared to other enzymes. 

Thanks and sorry again for the off topic question.

Peter

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