PerspectiveCell Signaling

β-Arrestin, a Two-fisted Terminator

Science  02 Feb 2007:
Vol. 315, Issue 5812, pp. 605-606
DOI: 10.1126/science.1138505

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-arrestin escorts enzymes to activated receptors, catalyzing the demise of signals that are generated. This may be a common theme among G protein-coupled receptors.