We found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleDirect activation of protein kinases by unanchored polyubiquitin chains.AuthorsXia ZP; Sun L; Chen X; Pineda G; Jiang X; Adhikari A; Zeng W; Chen ZJPublicationNature, 2009, Vol 461, Issue 7260, p114ISSN1476-4687Publication typearticleDOI10.1038/nature08247