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Acknowledgements

We thank Drs. M. Baez, M. Cohen, and D. Nelson (Lilly Research Laboratories) for gifts of AV12 cells and LY53857. We also thank Dr. Anton Mestek for constructing the pcDNA3 vector containing the HA epitope tag. This work was supported in part by NIH grants NS28190, DA09116, DA09444, and DA11891 to L. Y. J.H.H. and L.J.B. were supported by an NIH training grant (HD07373). J.L. was supported by a John B. Hickam Memorial postdoctoral fellowship from the American Heart Association, Indiana Affiliate, Inc. L.Y. was the recipient of an NIH Research Career Development Award (NS01557).

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