6236
To analyze the VH regions of polyreactive antibodies , with particular attention at their somatically mutated status , we generated five IgG ( three IgG1 and two IgG3 ) mAb ( using B cells from a healthy subject , a patient with insulin - dependent diabetes mellitus and a patient with SLE ) , which bound with various efficiencies a number of different self and foreign Ag .
 IgG, IgG1, IgG3, insulin
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 IgG, IgG1, IgG3, insulin