Figure 1From: A highly conserved arginine residue of the chitosanase from Streptomyces sp. N174 is involved both in catalysis and substrate bindingStructural view of a part of the active site cleft of chitosanase CsnN174. The image represents a portion of the chain A from 1CHK file in Protein Data Bank[6]. Catalytic residues: Glu22 (general acid), Asp40 (general base). Relevant interatomic distances in Å are indicated by interrupted yellow lines. The model was drawn using PyMOL software (PyMOL version 0.99, DeLano Scientific LLC, South San Francisco, CA, USA).Back to article page