11074
Competition EMS analyses utilizing Sp1 and CREB binding site oligonucleotides demonstrate that Sp family members are critical components of U1 ( U1A/U1B ) and U2 and that ATF/CREB family members are critical components of C1-C3 .
 ATF/CREB family members, U1, U1A/U1B, Sp family members, C1-C3, U2
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:
 ATF/CREB family members, U1, U1A/U1B, Sp family members, C1-C3, U2