10717
Our investigation of the human TCR beta gene uncovers a surprisingly complex and tissue-specific structure at the TCR Vbeta 8.1 promoter .
 human TCR beta gene, TCR Vbeta 8.1 promoter
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:
 human TCR beta gene, TCR Vbeta 8.1 promoter