2756
We studied the ability of N-acetylglucosaminyl-1,6-anhydro-N-acetylmuramyl-L-alanyl-D- isoglutamyl-m-diaminopimelyl-D-alanine ( G(Anh)MTetra ), a naturally occurring breakdown product of peptidoglycan that is produced by soluble lytic transglycosylase of Escherichia coli , to induce cytokine expression in human monocytes .
 ( cell type: human monocytes, None) , ( protein: lytic transglycosylase, None) , ( protein: cytokine, 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:
 ( cell type: human monocytes, None) , ( protein: lytic transglycosylase, None) , ( protein: cytokine, None) 