https://www.ncbi.nlm.nih.gov/Structure/pdb/6PT6
6PT6: Crystal structure of PsS1_NC C84S in complex with i-neocarratetraose
exo-2S-iota carrageenan S1 sulfatase3,6-anhydro-2-O-sulfo-alpha-D-galactopyranose4-O-sulfo-beta-D-galactopyranoseCALCIUM ION
crystal structure