MAGI2/S-SCAM outside brain

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Membrane-associated guanylate kinase with an inverted arrangement of protein-protein interaction domains (MAGI)2 (also called synaptic scaffolding molecule (S-SCAM), atrophin-1-interacting protein 1, activin receptor-interacting protein 1) is a scaffold protein that binds a wide variety of receptors, cell adhesion molecules and signalling molecules. It also interacts with other scaffold proteins and adaptors, and forms a protein network that supports cell junctions. As it is highly expressed in brain, the study on its roles in synaptic organization initially preceded. However, mounting evidence indicates that MAGI2/S-SCAM functions as a tumour suppressor and plays essential roles to maintain the integrity of cell structures in non-neuronal tissues. We review the articles regarding to MAGI2/S-SCAM outside brain and discuss future perspectives for the research of MAGI family proteins.

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