vogelstrauss

Dear CaptainPanic, That's it -- I found in another publication of the same authors that they define [math]IU[/math] as [math]\mu mol/min[/math], so I think they used it wrong and should have written [math]5.1 U/mg[/math] instead of [math]5.1 IU/mg[/math]. I get what you mean... It often takes me about a day to dig out only one kinetic parameter from scientific literature... Thanks a lot!!

Dear all, does anybody know how to convert an enzyme activity of e.g. 5.1 IU/mg to a reaction rate, let's say in micromol/s ? I read that the IU unit for biological activity and it's definition differs from substance to substance. Does anybody have a guess how I can get information of how to convert this for my specific enzyme (creatine kinase)? Thanks in advance, cheers Hans