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