1627
The putative intracellular receptors for FK506 and cyclosporin are cis-trans prolyl isomerases .
 protein: putative intracellular 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: putative intracellular receptors 
Answer:
 protein: putative intracellular receptors