Dear GLYCAM developers,

I would like to know if there is any standard protocol to follow if I want to simulate (MD) a oligosaccharide system whose monosaccharide units are not from the residues defined under GLYCAM forcefield (Specifically, Mannuronic acid ). I have checked all the residue types and I think up to the current GLYCAM forcefield version acidic form residue for Mannose(Man) is not there.

I appreciate any suggestions and help.

Thanks in advance for your time.
Best regards,