Interactions with PDZ proteins diversify voltage-gated calcium channel signaling.

Published

Journal Article (Review)

Voltage-gated Ca2+ (CaV ) channels are crucial for neuronal excitability and synaptic transmission upon depolarization. Their properties in vivo are modulated by their interaction with a variety of scaffolding proteins. Such interactions can influence the function and localization of CaV channels, as well as their coupling to intracellular second messengers and regulatory pathways, thus amplifying their signaling potential. Among these scaffolding proteins, a subset of PDZ (postsynaptic density-95, Drosophila discs-large, and zona occludens)-domain containing proteins play diverse roles in modulating CaV channel properties. At the presynaptic terminal, PDZ proteins enrich CaV channels in the active zone, enabling neurotransmitter release by maintaining a tight and vital link between channels and vesicles. In the postsynaptic density, these interactions are essential in regulating dendritic spine morphology and postsynaptic signaling cascades. In this review, we highlight the studies that demonstrate dynamic regulations of neuronal CaV channels by PDZ proteins. We discuss the role of PDZ proteins in controlling channel activity, regulating channel cell surface density, and influencing channel-mediated downstream signaling events. We highlight the importance of PDZ protein regulations of CaV channels and evaluate the link between this regulatory effect and human disease.

Full Text

Duke Authors

Cited Authors

  • Wang, S; Cortes, CJ

Published Date

  • January 2021

Published In

Volume / Issue

  • 99 / 1

Start / End Page

  • 332 - 348

PubMed ID

  • 32476168

Pubmed Central ID

  • 32476168

Electronic International Standard Serial Number (EISSN)

  • 1097-4547

Digital Object Identifier (DOI)

  • 10.1002/jnr.24650

Language

  • eng

Conference Location

  • United States