VOLUME 279 (2004) PAGES 5405–5412
This article has been withdrawn by the authors. The actin panel from Fig. 2D was reused in Fig. 6, A and C. The authors state that the overall conclusions of the article are not affected.
VOLUME 279 (2004) PAGES 5405–5412
This article has been withdrawn by the authors. The actin panel from Fig. 2D was reused in Fig. 6, A and C. The authors state that the overall conclusions of the article are not affected.