Protocol to request
            
                Purification of membrane fraction containing TAP-tagged CcmE
                
                
            
        
        
            
                Research article
            
            
                An Archaea-specific c-type cytochrome maturation machinery is crucial for methanogenesis in Methanosarcina acetivorans
                
            
            
            
                Dinesh Gupta et al.
            
            
                DOI: 10.7554/eLife.76970