نورِکسین-۳-آلفا (انگلیسی: Neurexin-3-alpha) یک پروتئین است که در انسان توسط ژن «NRXN3» کُدگذاری میشود.[۴][۵][۶] این ژن به همراه ژن NRXN1 از بزرگترین ژنهای انسان محسوب میشوند.
تصور بر آن است که این پروتئین در انعطافپذیری سیناپسی (Synaptic plasticity) نقش داشته باشد و پُلیمورفیسم در این ژن را، به استعداد ژنتیکی افراد در اعتیاد به الکل یا سوءمصرف مواد[۷][۸][۹] و همچنین چاقی[۱۰] نسبت دادهاند.
↑"Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
↑"Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
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