13197
After treatment for 30h , there was increased Cdc2 phosphorylation and expression of Wee1 , a Cdc2 kinase , and expression of the cell cycle inhibitor , p21 ( waf1 / cip1 ) , which interacts with Cdc2 .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 None