7469
Differential signaling and immediate - early gene activation by four splice variants of the human pituitary adenylate cyclase - activating polypeptide receptor ( hPACAP - R ) .
 immediate - early gene, human pituitary adenylate cyclase - activating polypeptide receptor, hPACAP - R
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 immediate - early gene, human pituitary adenylate cyclase - activating polypeptide receptor, hPACAP - R