Insulin, its chemistry and biochemistry.
D000595:Amino Acid Sequence; D000818:Animals; D002417:Cattle; D006801:Humans; D007328:Insulin / Q000502:physiology; D008961:Models, Structural; D011487:Protein Conformation; D051381:Rats; D013329:Structure-Activity Relationship; D013552:Swine; D014961:X-Ray Diffraction
D007328:Insulin