Insulin

A hormone cut out of a bigger protein: two short chains stapled by three disulfides. It works as one molecule and is stored six at a time around two zincs. Every view is superposed on the same A + B unit, so switching shows what changed and not how the crystal happened to sit.

what you are looking at

chains
insulin units
modelled
completeness
disulfides
in the site
helix / strand
extents Å
C-peptide
superposed on
view

Turn the molecule, then copy. Every entry shares one rotation basis, so one choice re-aims the whole bench. It goes into insulin's view in proteins.js with by: 'human', and every consumer reads it from there.

RCSB entry deposited .pdb what this page loads