12826
In vivo studies indicated that CD3 -induced HSI phosphorylation was dependent upon both the Src family tyrosine kinase Lck and the tyrosine phosphatase CD45 , did not require MEK1 kinase activity , and was regulated by protein kinase C activation .
 Lck, Src family tyrosine kinase, tyrosine phosphatase, protein kinase C, CD45, MEK1, HSI, CD3
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 Lck, Src family tyrosine kinase, tyrosine phosphatase, protein kinase C, CD45, MEK1, HSI, CD3