Structural definition of hSP-D recognition of Salmonella enterica LPS inner core oligosaccharides reveals alternative binding modes for the same LPS
Fig 6
S. enterica R5 oligosaccharide bound to rfhSP-D (subunit A) with the terminal glucose GlcI in the Ca1 binding site.
HepI interacts with Arg343. No ligand was observed in subunit A of the R7-bound structure due to crystal lattice constraints. Calcium coordinating bonds are represented by dots and protein-ligand interactions by dashes. The interactions of Glu333 are also indicated.