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Here we show that the lymphoid-specific transcription factor Oct-2A plays a critical role in HLA-DRA gene expression in class II-positive B cell lines , and that the high mobility group protein ( HMG ) I/Y binds to multiple sites within the DRA promoter , including the Oct-2A binding site .
 lymphoid-specific transcription factor, high mobility group protein, HLA-DRA gene, Oct-2A, Oct-2A binding site, DRA promoter, lymphoid-specific transcription factor Oct-2A, HMG, Oct-2A, I/Y, class II-positive B cell lines
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:
 lymphoid-specific transcription factor, high mobility group protein, HLA-DRA gene, Oct-2A, Oct-2A binding site, DRA promoter, lymphoid-specific transcription factor Oct-2A, HMG, Oct-2A, I/Y, class II-positive B cell lines