Xin Su’s favorite structure is:

Insulin/4-hydroxybenzamide on space mission STS-60

Insulin/4-hydroxybenzamide on space mission STS-60

Source: PDB

Why?

Despite many insulin crystal structures you may find in the Protein Data Bank, this one is extraterrestrially exotic. In addition to its exquisite beauty, grown under microgravity aboard the Space Shuttle Discovery, the high-quality crystal enabled scientists to reveal the fine details about drug-insulin interactions, which would have been impossible with earth-grown ones. —Xin Su


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