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. 1998 Apr 14;95(8):4182–4187. doi: 10.1073/pnas.95.8.4182

Figure 4.

Figure 4

MALDI MS spectrum of a decasaccharide D4 digestion mixture after a 50-min incubation with heparinase I. Two tetrasaccharides are observed with a difference in m/z of 80.06, corresponding to one sulfate group. Most likely, the lesser sulfated tetrasaccharide arises from the reducing end of a substrate impurity. Notation similar to Fig. 3.