2539
Novel membrane receptors for aldosterone in human lymphocytes : a 50 kDa protein on SDS-PAGE .
 cell type: human lymphocytes; protein: 50 kDa protein; protein: Novel membrane receptors
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
 Entities: human lymphocytes, 50 kDa protein, Novel membrane receptors 
Answer:
 cell type: human lymphocytes; protein: 50 kDa protein; protein: Novel membrane receptors