1179
By using the full - length cytoplasmic domain and mutants with progressive carboxy - terminal deletions , internal deletions , or point mutations , we identified the first 150 amino acid residues of LIFR as the minimal region necessary for signaling .
 GENE: LIFR
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: LIFR