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Cited by 366

The DOI matches its Crossref record; 34 of the 34 references it cites were found in a registry or an index.

LRRTM2 Functions as a Neurexin Ligand in Promoting Excitatory Synapse Formation

Open access
Ko, Jaewon, Fuccillo, Marc V., Malenka, Robert C., Südhof, Thomas C.·2009·Neuron

Abstract

Recently, leucine-rich repeat transmembrane proteins (LRRTMs) were found to be synaptic cell-adhesion molecules that, when expressed in non-neuronal cells, induce presynaptic differentiation in contacting axons. We now demonstrate that LRRTM2 induces only excitatory synapses, and that it also acts in transfected neurons similar to neuroligin-1. Using affinity chromatography, we identified α- and β-neurexins as LRRTM2 ligands, again rendering LRRTM2 similar to neuroligin-1. However, whereas neuroligins bind neurexins containing or lacking an insert in splice site #4, LRRTM2 only binds neurexins lacking an insert in splice site #4. Binding of neurexins to LRRTM2 can produce cell-adhesion junctions, consistent with a trans-interaction regulated by neurexin alternative splicing, and recombinant neurexin-1β blocks LRRTM2's ability to promote presynaptic differentiation. Thus, our data suggest that two unrelated postsynaptic cell-adhesion molecules, LRRTMs and neuroligins, unexpectedly bind to neurexins as the same presynaptic receptor, but that their binding is subject to distinct regulatory mechanisms.

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Metadata

Authors
Ko, J., Fuccillo, M. V., Malenka, R. C., & Südhof, T. C.
Venue
Neuron
Publisher
Elsevier BV
Published
2009-12
Volume
64
Issue
6
Pages
791-798
ISSN
0896-6273 (ISSN-L)
OpenAlex
W1992603916
Cited by
366
References
34
FWCI
12.17
Type
journal article
Language
en
Open access
bronze

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CoChat. (2026). Citation check: LRRTM2 Functions as a Neurexin Ligand in Promoting Excitatory Synapse Formation. https://app.cochat.ai/papers/10.1016/j.neuron.2009.12.012
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Ko, J., Fuccillo, M. V., Malenka, R. C., & Südhof, T. C. (2009). LRRTM2 Functions as a Neurexin Ligand in Promoting Excitatory Synapse Formation. Neuron. https://doi.org/10.1016/j.neuron.2009.12.012

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