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These data reveal a complex network of interactions between GTPases in the ARF family and their effectors and reveal a potential for cross - talk not demonstrated previously .
 GENE: GTPases; GENE: ARF family
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: GTPases; GENE: ARF family