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. 2016 Feb 10;7:10619. doi: 10.1038/ncomms10619

Figure 4. Mechanistic study of the activity enhancement of DNA nanocage-encapsulated enzymes.

Figure 4

(a) Relationship between turnover rate enhancement factor after encapsulation against enzyme molecular weight (fitted using one-phase decay function). (b) Nanocage-encapsulated G6pDH activity change after incubation with different amount of NaCl. Assay conditions: 0.5 nM enzyme-DNA cage, incubation with 1 mM glucose-6-phosphate and 1 mM NAD+ in TBS buffer (pH 7.5), and monitoring absorbance at 340 nm. (c) Normalized kcat and Km values of free G6PDH and G6PDH that is encapsulated within different DNA cage: SH(G6pDH), a honeycomb lattice origami with a single layer; SS(G6pDH), a square-lattice origami with a single layer; and DS(G6pDH), a square-lattice origami with two layers. kcat and Km values of caged enzymes are normalized to that of free enzymes. Error bars were generated as the standard deviation of at least three replicates.