4703
The expression of the putative operon bglPH of Bacillus subtilis was studied by using bglP ' - lacZ transcriptional fusions .
 bglPH, bglP ', lacZ
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 bglPH, bglP ', lacZ