342644
GCN2 ( general control nonrepressed 2 ) is a serine/threonine-protein kinase that senses amino acid deﬁciency through binding to uncharged transfer RNA ( tRNA ) .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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