There was an error published in J. Cell Sci. 121, 2473-2480.
In the print and online versions of this article the equation shown in Materials and Methods was incorrect.
The correct equation is shown below.
\[\ \mathrm{Percent}{\ }\mathrm{proliferation}=100-\frac{\mathrm{maximal}{\ }\mathrm{inhibition}}{1+10^{(\mathrm{log}{\ }\mathrm{EC}50-\mathrm{log}[\mathrm{CfaD}]){\times}\mathrm{Hill}}}\ \]
The authors apologise for this mistake.
© The Company of Biologists Limited 2008
2008
