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The associated release of the Glu167 / Arg290 salt bridge during channel opening allows a strong ionic interaction between Arg290 and a gamma - phosphate oxygen of ATP .
 Glu167, Arg290, Arg290, gamma - phosphate oxygen, ATP
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: Chemical 
Text: {0} 
Answer:
 Glu167, Arg290, Arg290, gamma - phosphate oxygen, ATP