Dynamic remodeling of scaffold interactions in dendritic spines controls synaptic excitability.

ABSTRACT: Scaffolding proteins interact with membrane receptors to control signaling pathways and cellular functions. However, the dynamics and specific roles of interactions between different components of scaffold complexes are poorly understood because of the dearth of methods available to monitor binding interactions. Using a unique combination of single-cell bioluminescence resonance energy transfer imaging in living neurons and electrophysiological recordings, in this paper, we depict the role of glutamate receptor scaffold complex remodeling in space and time to control synaptic transmission. Despite a broad colocalization of the proteins in neurons, we show that spine-confined assembly/disassembly of this scaffold complex, physiologically triggered by sustained activation of synaptic NMDA (N

SUBMITTER: Moutin E 

PROVIDER: S-EPMC3410417 | biostudies-literature | 2012 Jul

REPOSITORIES: biostudies-literature