4735
The DNA binding domain of NirA was expressed as a fusion protein with the glutathione S - transferase of Schistosoma japonicum .
 NirA, glutathione S - transferase
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 NirA, glutathione S - transferase