4XIL
Crystal structure of the NanB sialidase from streptococcus pneumoniae in complex with Optactin at pH 7.4 in PBS with MPD as the cryoprotectant
Functional Information from GO Data
Chain | GOid | namespace | contents |
A | 0004308 | molecular_function | exo-alpha-sialidase activity |
A | 0005737 | cellular_component | cytoplasm |
A | 0005975 | biological_process | carbohydrate metabolic process |
A | 0006689 | biological_process | ganglioside catabolic process |
A | 0009313 | biological_process | oligosaccharide catabolic process |
A | 0016020 | cellular_component | membrane |
A | 0016798 | molecular_function | hydrolase activity, acting on glycosyl bonds |
A | 0043231 | cellular_component | intracellular membrane-bounded organelle |
A | 0052794 | molecular_function | exo-alpha-(2->3)-sialidase activity |
A | 0052795 | molecular_function | exo-alpha-(2->6)-sialidase activity |
A | 0052796 | molecular_function | exo-alpha-(2->8)-sialidase activity |
Functional Information from PDB Data
site_id | AC1 |
Number of Residues | 13 |
Details | binding site for residue OPX A 701 |
Chain | Residue |
A | TYR250 |
A | HOH991 |
A | HOH943 |
A | HOH835 |
A | HOH985 |
A | THR251 |
A | GLN494 |
A | LYS499 |
A | ILE596 |
A | THR657 |
A | GLU658 |
A | LEU659 |
A | HOH1175 |
Functional Information from SwissProt/UniProt
site_id | SWS_FT_FI1 |
Number of Residues | 1 |
Details | ACT_SITE: Proton acceptor => ECO:0000250 |
Chain | Residue | Details |
A | ASP270 |
site_id | SWS_FT_FI2 |
Number of Residues | 1 |
Details | ACT_SITE: ACT_SITE => ECO:0000255 |
Chain | Residue | Details |
A | GLU541 |
site_id | SWS_FT_FI3 |
Number of Residues | 1 |
Details | ACT_SITE: Nucleophile => ECO:0000250 |
Chain | Residue | Details |
A | TYR653 |
site_id | SWS_FT_FI4 |
Number of Residues | 3 |
Details | BINDING: BINDING => ECO:0000250 |
Chain | Residue | Details |
A | ARG245 | |
A | ARG557 | |
A | ARG619 |