1722
The transcriptional activity of P - 450 ( 11 beta ) gene was studied with an in vitro transcription system using nuclear extracts prepared from bovine adrenal cortex .
 GENE: P - 450 ( 11 beta ) gene
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: P - 450 ( 11 beta ) gene