Insulin Monomer created with en:pymol, en:inkscape, and en:gimp from NMR structure 1ai0 in the en:pdb. Ref: Chang, X., Jorgensen, A.M., Bardrum, P., Led, J.J
from Wikipedia
The structure of insulin. The left side is a space-filling model of the insulin monomer, believed to be biologically active. Carbon is green, hydrogen white, oxygen red, and nitrogen blue. On the right side is a ribbon diagram of the insulin hexamer, believed to be the stored form. A monomer unit is highlighted with the A chain in blue and the B chain in cyan. Yellow denotes disulfide bonds, and magenta spheres are zinc ions.
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