Arcadlin is a neural activity-regulated cadherin involved in long term potentiation

Kanato Yamagata, Katrin I. Andreasson, Hiroko Sugiura, Eiichi Maru, Muller Dominique, Yasuyuki Irie, Naomasa Miki, Yokichi Hayashi, Masatomo Yoshioka, Kenya Kaneko, Hiroshi Kato, Paul F. Worley

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133 Scopus citations


Neural activity results in long term changes that underlie synaptic plasticity. To examine the molecular basis of activity-dependent plasticity, we have used differential cloning techniques to identify genes that are rapidly induced in brain neurons by synaptic activity. Here, we identify a novel cadherin molecule Arcadlin (activity-regulated cadherin-like protein), arcadlin mRNA is rapidly and transiently induced in hippocampal granule cells by seizures and by N-methyl-D-aspartate-dependent synaptic activity in long term potentiation. The extracellular domain of Arcadlin is most homologous to protocadherin-8; however, the cytoplasmic region is distinct from that of any cadherin family member. Arcadlin protein is expressed at the synapses and shows a homophilic binding activity in a Ca2+-dependent manner. Furthermore, application of Arcadlin antibody reduces excitatory postsynaptic potential amplitude and blocks long term potentiation in hippocampal slices. Its close homology with cadherins, its rapid inducibility by neural activity, and its involvement in synaptic transmission suggest that Arcadlin may play an important role in activity-induced synaptic reorganization underlying long term memory.

Original languageEnglish (US)
Pages (from-to)19473-19479
Number of pages7
JournalJournal of Biological Chemistry
Issue number27
StatePublished - Jul 2 1999

ASJC Scopus subject areas

  • Biochemistry
  • Molecular Biology
  • Cell Biology


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