7881
SIT is a disulfide-linked homodimeric glycoprotein that is expressed in lymphocytes .
 disulfide-linked homodimeric glycoprotein, SIT, lymphocytes
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: cell line, protein, RNA, DNA, cell type 
Text: {0} 
Answer:
 disulfide-linked homodimeric glycoprotein, SIT, lymphocytes