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The human activation antigen CD69 is a member of the C-type animal lectin superfamily that functions as a signal-transmitting receptor .
 protein: signal-transmitting receptor; protein: human activation antigen; protein: C-type animal lectin superfamily; protein: CD69
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 protein: signal-transmitting receptor; protein: human activation antigen; protein: C-type animal lectin superfamily; protein: CD69