7859
To determine which region of SulA is essential for the inhibition of cell division , we constructed a series of N - terminal and C - terminal deletions of SulA and a series of alanine substitution mutants .
 SulA, SulA
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: GENE 
Text: {0} 
Answer:
 SulA, SulA