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A: Domain architectures of the neurexins. The sites of alternative splicing are shown as vertical dotted lines. SS: splice site. LNS: Laminin G, Neurexin, Sex-hormone. EGF: epidermal growth factor domain. B: The structure of Nrx1β is shown in cartoon representation with splice sites highlighted using grey spheres. C: The structure of Nrx1ɑ is shown in cartoon representation with D: an orthogonal view.
