PLK1（polo like kinase 1），癌症关联基因，基因ID：5347，该基因编码的ser/thr蛋白激酶属于cdc5/polo亚家族。它在有丝分裂过程中高度表达，并且在许多不同类型的癌症中都有升高的水平。这种蛋白在癌细胞中的缺失显著地抑制了细胞增殖和诱导凋亡，因此，它是癌症治疗的靶点。[由RefSeq提供，2015年9月]The Ser/Thr protein kinase encoded by this gene belongs to the CDC5/Polo subfamily. It is highly expressed during mitosis and elevated levels are found in many different types of cancer. Depletion of this protein in cancer cells dramatically inhibited cell proliferation and induced apoptosis; hence， it is a target for cancer therapy. [provided by RefSeq， Sep 2015]。