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In this study , we verified that PI 3 - kinase associates with the CD4 : p56lck complex as judged by the presence of PI 3 - phosphate generated from anti - CD4 immunoprecipitates and detected by high - pressure liquid chromatographic analysis .
 GENE: PI 3 - kinase; GENE: CD4; GENE: p56lck complex; GENE: anti - CD4
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: PI 3 - kinase; GENE: CD4; GENE: p56lck complex; GENE: anti - CD4