There was an error published in J. Cell Sci. 123, 3420-3423.

We misprinted the sentence in the acknowledgements that states the American Heart Association (AHA) as the funding body supporting F. Jon Kull.

The correct sentence is given below:

The authors' research on kinesins is supported by NIH GM046225 and March of Dimes 1-FY07-443 Grants to S.A.E., and AHA Scientist Development Grant 0330345N to F.J.K.

We apologise for this mistake.