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These findings suggest a functional cross - talk between RB protein and p21ras , which balances the cell phenotype between normal and transformed states .
 GENE: RB protein; GENE: p21ras
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: RB protein; GENE: p21ras