(epidermal growth factor) - LNS domains. N1? binds to a variety of ligands including neuroligins and GABA receptors, though neurons of every receptor type express neurexins. ?-Neurexins are shorter versions of ?-neurexins, containing only one LNS domain. ?-Neurexins (located presynaptically) act as receptors for neuroligin (located postsynaptically). Additionally, ?-Neurexin has also been found to play a role in angiogenesis.

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