Improving the Extraction of Active Ingredients from Medicinal Plants by XynA Modification

Figure 2

Structure comparison. (a) Protein structure comparison of XynA and xylanase C. Xylanase C (PDB ID 4XUY) is an endo--1,4-xylanase from Aspergillus niger. XynA and xylanase C are coloured lemon yellow and magenta, respectively. (b) Electron density map of the XynA N-terminal and C-terminal domains. The simulated annealing omit of the 2Fo-Fc map is contoured at 1σ, and the N-terminal domain and C-terminal domain are labelled in purple and pale green.

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