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The biosynthesis and stability of the three mutant proteins were similar to those of the wild - type erbB protein , and all three retained the ability to transform chicken embryo fibroblasts .
 GENE: wild - type erbB protein
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: wild - type erbB protein