https://www.ncbi.nlm.nih.gov/Structure/pdb/4P8W
4P8W: The crystal structures of YKL-39 in the presence of chitooligosaccharides (GlcNAc4) were...
Chitinase-3-like protein 22-acetamido-2-deoxy-alpha-D-glucopyranose2-acetamido-2-deoxy-beta-D-glucopyranoseSULFATE ION
the crystal