4IXS:
reference: PLP undergoes conformational changes during the course of an enzymatic reaction., Ngo HP, Cerqueira NM, Kim JK, Hong MK, Fernandes PA, Ramos MJ, Kang LW, Acta Crystallogr D Biol Crystallogr. 2014 Feb;70(Pt 2):596-606. doi:, 10.1107/S1399004713031283. Epub 2014 Jan 31. PMID: 24531493

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