Yu, X (reprint author), Chinese Acad Sci, Shanghai Inst Biol Sci, Inst Neurosci, Shanghai, Peoples R China,email@example.com
N-cadherin is a homophilic cell adhesion molecule that plays important roles in many aspects of neuronal development. In order to better understand the function of N-cadherin mediated cell-cell contact in activity-dependent dendrite development, we generated a number of new tools. EC1, consisting of the first extracellular domain of N-cadherin, can specifically inhibit N-cadherin, but not E-cadherin, mediated cell-cell contact, both when overexpressed in neurons and added as a purified protein. Ncad-HA is an extracellularly epitope-tagged version of N-cadherin that, when overexpressed under the activity-independent pCS2min promoter, can be used to assay surface N-cadherin level following various manipulations. These tools are likely to be very useful for studying the function of N-cadherin in multiple aspects of neural circuit development.