1031
Catalase plays a key role as an antioxidant , protecting aerobic organisms from the toxic effects of hydrogen peroxide , and in some cases has been postulated to be a virulence factor .
 GENE: Catalase
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: Catalase