6030
An insertion mutation was constructed in the rpoS gene on the chromosome of L. pneumophila , and the ability of this mutant strain to survive various stress conditions was assayed and compared with results for the wild-type strain .
 ( DNA: rpoS gene, None) 
Locate the role in the text that participated in the event based on the event type and return it in the event list. 
 Option: Event type: RNA,cell type,protein,cell line,DNA, Arguments type: . 
Text: {0} 
Answer:
 ( DNA: rpoS gene, None) 