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The EC50; Confidence intervals of the EC50; Hill slope; Choosing a dose-response equation; Pros and cons of normalizing the data; The term "logistic"; 50% of ...

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

In this case, use nonlinear regression to quantify the fold shift in the EC50 and its confidence interval, and to compute a P value that tests the null ...

https://www.graphpad.com/guides/prism/latest/statistics/

response curve is defined by the bottom, top, EC50, and slope. In this curve, the top and bottom parts are mirror images of each other -- the curve is ...

GraphPad FAQs

LogEC50 is the logarithm of the EC50 (effective concentration, 50%). With different kinds of variables, this variable is sometimes called ED50 (effective ...

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

The EC50; Confidence intervals of the EC50; Hill slope; Choosing a dose-response equation; Pros and cons of normalizing the data; The term "logistic"; 50% of ...

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

So long as you enter a 'concentration' more than three log units below the EC50 (and assuming a Hill Slope not too far from 1.0), the usual method works ...

GraphPad FAQs

Since the uncertainty of the EC50 is very asymmetric, be sure to choose to compute the confidence intervals using the likelihood ratio asymmetric method.

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

The EC50; Confidence intervals of the EC50; Hill slope; Choosing a dose-response equation; Pros and cons of normalizing the data; The term "logistic"; 50% of ...

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

This model fits the Ki of the unlabelled ligand directly. It does not report the EC50, so you do not need to apply the Cheng and Prusoff correction(1).

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

All the ideas can be applied to stimulatory curves and EC50 (E for effective) as well. Just stand on your head when you view the figures!. The ideal ...

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