980
A triple Ser - - > Ala mutant form of yeast eIF - 2 alpha was found to be no longer phosphorylated by either of the yeast ( or mammalian ) casein kinase activities in vitro .
 GENE: eIF - 2 alpha; GENE: casein kinase
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: eIF - 2 alpha; GENE: casein kinase