1598
These cells fail to generate the signals to phosphorylate CREB and produce significantly less of the cytokine Interleukin - 2 ( IL - 2 ) in response to agents that either increase intracellular Ca2 + and / or activate protein kinase C .
 GENE: CREB; GENE: Interleukin - 2; GENE: IL - 2; GENE: protein kinase C
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: CREB; GENE: Interleukin - 2; GENE: IL - 2; GENE: protein kinase C