1993
Gel filtration and co - immunoprecipitation analyses reveal that Mad2p tightly associates with another spindle checkpoint component , Mad1p .
 GENE: Mad2p; GENE: Mad1p
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: Mad2p; GENE: Mad1p