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Transient overexpression of mutant EphB1 receptors ( Y594F ) blocked Nck recruitment to EphB1 , attenuated downstream JNK activation , and blocked cell attachment responses .
 mutant EphB1 receptors, Nck, EphB1, JNK
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 mutant EphB1 receptors, Nck, EphB1, JNK