title: Protein import into organelles: hierarchical targeting signals.
mesh_terms: D000595:Amino Acid Sequence; D001693:Biological Transport, Active; D002352:Carrier Proteins / Q000502:physiology*; D002736:Chloroplasts / Q000378:metabolism*; D008928:Mitochondria / Q000378:metabolism*; D010940:Plant Proteins / Q000378:metabolism; D011487:Protein Conformation; D011498:Protein Precursors / Q000502:physiology; D021382:Protein Sorting Signals / Q000502:physiology*; D011506:Proteins / Q000378:metabolism*
chemical_list: D002352:Carrier Proteins; D010940:Plant Proteins; D011498:Protein Precursors; D021382:Protein Sorting Signals; D011506:Proteins