Fig. 5From: Structural and functional properties of pectin and lignin–carbohydrate complexes de-esterases: a reviewThe protein secondary structure of Aspergillus niger feruloyl esterase (carbohydrate esterase class-I) (PDB ID:1UWC) (McAuley et al. 2004), where alpha-helices (red), beta strands (blue) and coils (gray). (Image was developed using Discovery Studio Visualizer®)Back to article page