11169
Functional recognition of 5 ' splice site by U4 / U6 . U5 tri - snRNP defines a novel ATP - dependent step in early spliceosome assembly .
 U4, U6, U5
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 U4, U6, U5