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We propose that ALY mediates context-dependent transcriptional activation by facilitating the functional collaboration of multiple proteins in the TCR alpha enhancer complex .
 TCR alpha enhancer, ALY, multiple proteins, TCR alpha enhancer complex
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 TCR alpha enhancer, ALY, multiple proteins, TCR alpha enhancer complex