Fig 5(wm)top. [doi:10.1073/pnas.0709428105] Copyright: This image is from Essalmani R; Zaid A; Marcinkiewicz J; Chamberland A; Pasquato A; Seidah NG; Prat A, Proc Natl Acad Sci U S A 2008 Apr 15;105(15):5750-5. [PMID:18378898] Copyright 2008 National Academy of Sciences, U.S.A.