4964
The tyrosine - phosphorylated state of CAK beta was not reduced on trypsinization , nor enhanced in response to plating 3Y1 cells onto fibronectin .
 CAK beta, fibronectin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 CAK beta, fibronectin