1355
Cdk2 formed a complex with cyclin D1 in this system .
 GENE: Cdk2; GENE: cyclin D1
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: Cdk2; GENE: cyclin D1