17462
Furthermore , CPK11 phosphorylated the N terminus of CPK24 in vitro , suggesting that these two CDPKs work together as part of a kinase cascade .
 Chemical: N
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: N