https://www.ncbi.nlm.nih.gov/Structure/pdb/2XZJ
2XZJ: THE ASPERGILLUS FUMIGATUS SIALIDASE IS A KDNASE: STRUCTURAL AND MECHANISTIC INSIGHTS
EXTRACELLULAR SIALIDASE/NEURAMINIDASE, PUTATIVE2,6-anhydro-3-deoxy-D-glycero-D-galacto-non-2-enonic acidSODIUM ION
aspergillus fumigatus