3ZYX:
reference: The 'gating' residues Ile199 and Tyr326 in human monoamine oxidase B function in substrate and inhibitor recognition., Milczek EM, Binda C, Rovida S, Mattevi A, Edmondson DE, FEBS J. 2011 Dec;278(24):4860-9. doi: 10.1111/j.1742-4658.2011.08386.x., Epub 2011 Nov 3. PMID: 21978362

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