VP3 Protein beta sheets circling the pentamer interface form the base of a diaphragm shutter-like pore

Figure 13

Weininger, A.; Weininger, S. (2016)

“Common Features in Picornaviruses, Alpha-bungarotoxin, Myelin P2, and CRABP Suggest
 Structural Bases for Multiple Sclerosis, Guillain-Barré Syndrome, and Paralysis Induction”

http://www.weiningerworks.com/picornavirus_monograph.html#Figure13