4893
These results indicate that ( 1 ) RXR - TR heterodimers play a role in basal transactivation and T3 suppression of negatively regulated genes , and ( 2 ) RXRs increase the dominant negative effect of some mutant TRs on specific negative TREs .
 GENE: RXR; GENE: TR; GENE: RXRs; GENE: TRs
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: RXR; GENE: TR; GENE: RXRs; GENE: TRs