Protocol to request
            
                Assay of in vivo protease activity in the worm intestinal tract
                
                
            
        
        
            
                Research article
            
            
                A vitamin-B2-sensing mechanism that regulates gut protease activity to impact animal’s food behavior and growth
                
            
            
            
                Bin Qi et al.
            
            
                DOI: 10.7554/eLife.26243