3203
PRRII is a T-cell-specific enhancer , located between nucleotides -137 and -64, which binds the T-cell-specific Ets protein Elf-1 and HMG-I(Y) proteins .
 Elf-1, PRRII, T-cell-specific Ets protein, T-cell-specific enhancer, HMG-I(Y) proteins
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:
 Elf-1, PRRII, T-cell-specific Ets protein, T-cell-specific enhancer, HMG-I(Y) proteins