title: Vital biological tool.
mesh_terms: D002256:Carbonic Anhydrases / Q000032:analysis; D002776:Cholestanes; D004739:England; D005288:Ferredoxins / Q000032:analysis; D005634:Fructose-Bisphosphate Aldolase; D006454:Hemoglobins / Q000032:analysis; D008025:Ligases; D009682:Magnetic Resonance Spectroscopy; D009211:Myoglobin / Q000032:analysis; D010743:Phospholipids
chemical_list: D002776:Cholestanes; D005288:Ferredoxins; D006454:Hemoglobins; D009211:Myoglobin; D010743:Phospholipids; D005634:Fructose-Bisphosphate Aldolase; D002256:Carbonic Anhydrases; D008025:Ligases