4768
Various stimuli inactivate IkappaB alpha by triggering phosphorylation of the N - terminal residues Ser32 and Ser36 .
 GENE: IkappaB alpha
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: IkappaB alpha