3EQD:
reference: Crystal Structures of MEK1 Binary and Ternary Complexes with Nucleotides and Inhibitors., Fischmann T, Smith C, Mayhood T, Myers J, Reichert P, Mannarino A, Carr D, Zhu H, Wong J, Yang RS, Le H, Madison V, Biochemistry. 2009 Jan 22. PMID: 19161339

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