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The absolute IC50 requires that the inhibitor brings the binding or response down to less than 50%. If the inhibitor only brings the response down to (say) 60%, ...

GraphPad FAQs

Any attempt to determine an IC50 by fitting a curve to the data in the graph above will be useless. Prism might, or might not, be able to fit a ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

AbsoluteIC50 is the concentration of antagonist that gives a response half way between Top and Baseline.

https://www.graphpad.com/guides/prism/latest/curve-fitting/

This equation is used when X values are logarithms of concentrations or doses. Use a related equation when X values are concentrations or doses.

https://www.graphpad.com/guides/prism/latest/curve-fitting/

The IC50 is the concentration of an inhibitor where the response (or binding) is reduced by half. Seems simple enough. But when you actually go to fit data to ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

Fitting a dose-response curve to find the absolute IC50. The concept of an absolute IC50 is not standard, and many find it not to be useful. But if you do, ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

IC50 and EC50 are, respectively, the inhibition and effective concentrations that produce 50% of maximal response from a drug or treatment dose.

GraphPad FAQs

response curves follow the familiar symmetrical sigmoidal shape. The goal is to determine the IC50 of the inhibitor - the concentration that provokes a response ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

IC50 is the concentration of agonist that gives a response half way between ... Depending on which units Y is expressed in, and the values of Bottom and Top, the ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/

IC50 is the concentration of agonist that gives a response half way between ... Depending on which units Y is expressed in, and the values of Bottom and Top, the ...

https://www.graphpad.com/guides/prism/latest/curve-fitting/