We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleHedgehog signalling activity of Smoothened requires phosphorylation by protein kinase A and casein kinase I.AuthorsJia, Jianhang; Tong, Chao; Wang, Bing; Luo, Liping; Jiang, JinPublicationNature, 2004, Vol 432, Issue 7020, p1045ISSN0028-0836Publication typearticleDOI10.1038/nature03179