Protocol to request
            
                Small RNA (sRNA) extraction and northern blot analysis
                
                
            
        
        
            
                Research article
            
            
                A virus-encoded protein suppresses methylation of the viral genome through its interaction with AGO4 in the Cajal body
                
            
            
            
                Liping Wang et al.
            
            
                DOI: 10.7554/eLife.55542