{{Title text: Check it out--when I tug the C-terminal tail, the binding tunnel squeezes!}}

[[Man and woman talking]]
Man: What do you do?
Woman:  I make software that predicts how proteins will fold.

[[Same scene layout, second panel]]
Man: Is that a hard problem?
Woman:  Someone may someday find a harder one.

[[Same scene layout, third panel]]
Man: Why is it so hard?
Woman: Have you ever made a folded paper crane?
Man: Yeah.

[[Same scene layout, fourth panel]]
Woman: Imagine figuring out the folds to make an actual living crane.
Man: ... just folds?  Can I make cuts?
Woman: If you can fold a protease enzyme.