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v-Fos protein , the retroviral counterpart of c-Fos , was not susceptible to degradation targeted by c-Jun .
 protein: v-Fos protein; protein: c-Fos; protein: c-Jun
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: v-Fos protein; protein: c-Fos; protein: c-Jun