Lysine 624 of the amyloid precursor protein (APP) is a critical determinant of amyloid β peptide length: support for a sequential model of γ-secretase intramembrane proteolysis and regulation by the amyloid β precursor protein (APP) juxtamembrane region. - Kukar TL; Ladd TB; Robertson P; Pintchovski SA; Moore B; Bann MA; Ren Z; Jansen-West K; Malphrus K; Eggert S; Maruyama H; Cottrell BA; et al. (The Journal of biological chemistry, 2011)