6742
However , a > 10 - fold increase in ERK3 activity in each PKC beta transfectant was shown by immunoprecipitation with anti - ERK3 monoclonal antibody followed by either immune complex kinase assay or by in gel kinase assay .
 ERK3, PKC beta, anti - ERK3 monoclonal antibody
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 ERK3, PKC beta, anti - ERK3 monoclonal antibody