1223
Mutations at the extreme C - terminus of EIAV Tat impaired both RNA binding and activation domain functions , suggesting effects on secondary or tertiary structure .
 GENE: EIAV Tat
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: EIAV Tat