... kinase inhibitor protein family includesp 21 WAF1, p27Kip1, and p57Kip2. They halt the cell cycle in the G 1 phase by binding to, and inactivating,cyclin–CDK complexes [29,30]. The results of ... Xiuzhen Sun 1 , Lan Yang3, Ping Fang 1 , Yun Liu 1 , Wei Li 1 , Jing Xu 1 ,Jiamei Lu 1 , Minxing Xie 1 and Dexin Zhang 1 1 Department of Respiratory Medicine, The Second Affiliated Hospital of Medical ... group of CDK inhibitors comprising two families of proteins:inhibitor of kinase 4 ⁄ alternative reading frame and CDK inhibitor protein ⁄ kinase inhibitor protein. The inhibitor of kinase 4 ⁄ alternative...