CD44 and plasma cell myeloma: To characterize how N-glycans behave and fold on CD44-HABD, we in silico glycosylated a HABD structure (PDB:1UUH) with myeloma asialo, myeloma monosialo, partial monosialo, and full pentasaccharide N-glycan profiles (Systems G1–4 in Table 2 depicted in Fig. 2c).