Fig. 5: Pvfp-5β self-assembly in mussel byssal plaques.
From: Solution structure of recombinant Pvfp-5β reveals insights into mussel adhesion

The elongated shape of the Pvfp-5β and the exposure of many interaction hotspots are ideal for fiber formation. Different units might pile up interacting in a way perpendicular to the main axis of the fibers, as in the cross-β of an amyloid fiber.