Examples of PNP biosensors and biocatalyst. a) The E2 PNP has the
ability to be decorated with multiple sensing and output domains allowing it to
be an efficient biosensor against a number of targets. Reprinted with permission
from Sun Q, Chen Q, Blackstock D, Chen W: Post-Translational Modification
of Bionanoparticles as a Modular Platform for Biosensor Assembly.
ACS Nano 2015, 9:8554–8561. Copyright
2015, American Chemical Society. b) A three enzyme synthetic metabolon was
incorporated into the P22 VLP to create a more efficient bioreactor. The three
enzymes and shell protein were co-expressed and allowed to self-assemble into a
nanobioreactor. Reprinted with permission from Patterson DP, Schwarz B, Waters
RS, Gedeon T, Douglas T: Encapsulation of an enzyme cascade within the
bacteriophage P22 virus-like particle. ACS Chem Biol
2014, 9:359–365. Copyright 2014, American Chemical
Society.