1202
Transforming growth factor-beta suppresses human B lymphocyte Ig production by inhibiting synthesis and the switch from the membrane form to the secreted form of Ig mRNA .
 protein: human B lymphocyte Ig; protein: Transforming growth factor-beta; RNA: membrane form; RNA: secreted form; RNA: Ig mRNA
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: human B lymphocyte Ig; protein: Transforming growth factor-beta; RNA: membrane form; RNA: secreted form; RNA: Ig mRNA