7724
Cdc2 co - precipitates with Pch1 in S . pombe cell lysates , although Cdc2 may not be the major catalytic partner of a Pch1 kinase in vivo .
 Cdc2, Pch1, Cdc2, Pch1 kinase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 Cdc2, Pch1, Cdc2, Pch1 kinase