4YR9:
reference: Structural insights on mouse l-threonine dehydrogenase: A regulatory role of Arg180 in catalysis., He C, Huang X, Liu Y, Li F, Yang Y, Tao H, Han C, Zhao C, Xiao Y, Shi Y, J Struct Biol. 2015 Dec;192(3):510-8. doi: 10.1016/j.jsb.2015.10.014. Epub 2015, Oct 19. PMID: 26492815

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