1397
The PRP4 protein of Saccharomyces cerevisiae is an essential part of the U4 / U6 snRNP , a component of the mRNA splicing apparatus .
 GENE: PRP4 protein of Saccharomyces cerevisiae; GENE: U4; GENE: U6
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: PRP4 protein of Saccharomyces cerevisiae; GENE: U4; GENE: U6