Ontology highlight
ABSTRACT:
SUBMITTER: Jackson LP
PROVIDER: S-EPMC3655264 | biostudies-literature | 2010 Jun
REPOSITORIES: biostudies-literature
Cell 20100601 7
The AP2 adaptor complex (alpha, beta2, sigma2, and mu2 subunits) crosslinks the endocytic clathrin scaffold to PtdIns4,5P(2)-containing membranes and transmembrane protein cargo. In the "locked" cytosolic form, AP2's binding sites for the two endocytic motifs, YxxPhi on the C-terminal domain of mu2 (C-mu2) and [ED]xxxL[LI] on sigma2, are blocked by parts of beta2. Using protein crystallography, we show that AP2 undergoes a large conformational change in which C-mu2 relocates to an orthogonal fac ...[more]