nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic process cellular metabolic process primary metabolic process organic substance metabolic process methylation nitrogen compound metabolic nitrogen compound metabolic process cellular metabolic processcellular metabolic process primary metabolic processprimary metabolic process organic substance metabolic organic substance metabolic process methylationmethylation catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a protein transferase activity catalytic activity, acting on a proteincatalytic activity, acting on a protein transferase activitytransferase activity membrane membrane membrane membrane membrane membrane membrane membrane membrane membrane membranemembrane 
