2086
Binding of C / EBPs to all three spi 2 . 3 3 ' UTR repressor sites , although rather weak , was confirmed by electrophoretic mobility shift assays that otherwise failed to reveal specific interactions with other liver nuclear proteins in vitro .
 GENE: C / EBPs; GENE: spi 2 . 3 3 ' UTR repressor sites
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
Answer:
 GENE: C / EBPs; GENE: spi 2 . 3 3 ' UTR repressor sites