2OU7 2.40 LIG: ANP COF: ION: MG ZN : SERINE/THREONINE-PROTEIN KINASE PLK1 2OWB 2.10 LIG: 626 COF: ION: ZN : SERINE/THREONINE-PROTEIN KINASE PLK1 2RKU 1.95 LIG: R78 SRT TLA COF: ION: ZN : SERINE/THREONINE-PROTEIN KINASE PLK1 3FC2 2.45 LIG: IBI COF: ION: ZN : SERINE/THREONINE-PROTEIN KINASE PLK1 3KB7 2.50 LIG: 071 TLA COF: ION: ZN : SERINE/THREONINE-PROTEIN KINASE PLK1