What is the role of neurexins in forming transsynaptic interactions at the presynapse?
['["Neurexins and neuroligins are two distinct families of single-pass transmembrane proteins localized at pre- and postsynapses, respectively. ", "presynaptic neurexins", "best-characterized transsynaptic interactions are formed by presynaptic neurexins, which bind to diverse postsynaptic ligands.", "presynaptic neurexin"]']
Neurexins play a key role in forming transsynaptic interactions at the presynapse by binding to diverse postsynaptic ligands, making them the best-characterized transsynaptic interactions.
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