nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic process catabolic process cellular metabolic process primary metabolic process organic substance metabolic process nitrogen compound metabolic nitrogen compound metabolic process catabolic processcatabolic process cellular metabolic processcellular metabolic process primary metabolic processprimary metabolic process organic substance metabolic organic substance metabolic process protein binding protein binding protein binding protein binding protein binding protein binding protein binding protein binding protein binding protein binding protein bindingprotein binding cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cell membrane protein-containing complex organelle cellcell membranemembrane protein-containing complexprotein-containing complex organelleorganelle 
