2499
A role for phosphatidylinositol 3 - kinase in the regulation of beta 1 integrin activity by the CD2 antigen .
 GENE: phosphatidylinositol 3 - kinase; GENE: beta 1 integrin; GENE: CD2
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: phosphatidylinositol 3 - kinase; GENE: beta 1 integrin; GENE: CD2