8749
The human glucocorticoid receptor ( GR ) is expressed as two alternatively spliced isoforms, GRalpha and GRbeta .
 human glucocorticoid receptor, GRbeta, GR, GRalpha
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:
 human glucocorticoid receptor, GRbeta, GR, GRalpha