19752
We found that Egr1 , a transcription factor whose promoter activity was positively regulated by the 5 - HT2A receptor agonist TCB - 2 , binds less to the mGlu2 promoter in frontal cortex of 5 - HT2A - KO as compared to wild - type mice .
 Chemical: TCB - 2
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: TCB - 2