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Although both transfected cell lines contain FGF - 1 cell surface receptors as judged by crosslinking studies , the wild - type transfectants are refractory to exogenous FGF - 1 , whereas the mutant transfectants respond normally . ( ABSTRACT TRUNCATED AT 250 WORDS )
 GENE: FGF - 1 cell surface receptors; GENE: FGF - 1
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: FGF - 1 cell surface receptors; GENE: FGF - 1