1747
Indeed , it is shown that it mediates the formation of disulfide - linked homodimers and that the formation of homo - and heterodimers are mutually excluded .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: GENE 
Text: {0} 
 Entities:  
Answer:
 None