To this end, we have used GLYCAM-06j all-atom forcefield to simulate a single disaccharide in water and use as a reference frame to infer the CG bonded parameters. The choice of GLYCAM-06j was primarily due to the simplicity and high flexibility for the user to create initial canonical structures without the need of a PDB structure. However, the choice of a particular force field to use as a reference will logically affect the sampling compared to other force fields in the case of observed differences in behaviour. For this reason, and given that a full comparison between allatom force fields is not the scope of this work, we have also computed the bonded distributions for simulations of a smaller subset of disaccharides run with CHARMM36. Although there are some minor shifts in a few properties, the total average overlap for all the bonded terms distributions respect to the reference GLYCAM-06j force field is 66%, from values ranging from 0 to 98% (Supplementary Table ,S2, Supplementary Figures ).