869
The interferon - induced RNA - dependent protein kinase ( PKR ) is considered to play an important role in the cellular defense against viral infection and , in addition , has been suggested to be a tumor suppressor gene because of its growth - suppressive properties .
 GENE: interferon; GENE: RNA - dependent protein kinase; GENE: PKR
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: interferon; GENE: RNA - dependent protein kinase; GENE: PKR