2542
Binding of 1 nM [125I]- aldosterone was found at a molecular weight of approximately 50 kDa which was absent with 1 microM cold aldosterone , but not cortisol in the binding media .
 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:
 None