| Literature DB >> 15911348 |
Kouichi Itoh1, Ken Shimono, Vance Lemmon.
Abstract
The neural cell adhesion molecule L1 may participate in initiating and maintaining synaptic changes during learning in the hippocampus. One prominent form of synaptic change in the hippocampus is long-term potentiation (LTP) that occurs following specific patterns of synaptic activity. We present evidence that Y1176 of the YRSL motif within L1 cytoplasmic domain is dephosphorylated in LTP-induced hippocampus. The dephosphorylated L1 is associated with AP-2 and AP180 that are required for clathrin-mediated internalization of L1. These data suggest that clathrin-mediated recycling of L1 at presynaptic sites is enhanced by certain kinds of neural activity, and that maintenance of LTP-induced synaptic changes is regulated by L1 recycling.Entities:
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Year: 2005 PMID: 15911348 PMCID: PMC1382274 DOI: 10.1016/j.mcn.2005.02.014
Source DB: PubMed Journal: Mol Cell Neurosci ISSN: 1044-7431 Impact factor: 4.314