3Q41:
reference: Separation of Domain Contacts Is Required for Heterotetrameric Assembly of Functional NMDA Receptors., Farina AN, Blain KY, Maruo T, Kwiatkowski W, Choe S, Nakagawa T, J Neurosci. 2011 Mar 9;31(10):3565-79. PMID: 21389213

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