2888
In the CD45-negative variant , the effect of pervanadate on tyrosine phosphorylation was globally decreased and some phosphorylated substrates were specifically missing.
 ( cell line: CD45-negative variant, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( cell line: CD45-negative variant, None) 