9818
CDK4 kinase activities were unaffected , as were the levels of the CDK inhibitor p21Cip1 present in cyclin E immunocomplexes .
 GENE: CDK4 kinase; GENE: CDK; GENE: p21Cip1; GENE: cyclin E immunocomplexes
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities: CDK4 kinase, CDK, p21Cip1, cyclin E immunocomplexes 
Answer:
 GENE: CDK4 kinase; GENE: CDK; GENE: p21Cip1; GENE: cyclin E immunocomplexes