Table 4. Chemical Structures of the Eight Most Prevalent, Biologically Relevant Heparin/Heparan Sulfate Disaccharides Produced by the Action of Heparin Lyases I, II, and III (A-H) and Disaccharide I-P, the Internal Standard Used for Quantification.
| Disaccharides | m/z | |
|---|---|---|
| A | ΔUA→GlcNAc | 378.1 |
| B | ΔUA2S→GlcNAc | 458.1 |
| C | ΔUA→GlcNAc6S | 458.1 |
| D | ΔUA→GlcNS | 416.1 207.7 |
| E | ΔUA2S→GlcNAc6S | 268.7 |
| F | ΔUA2S→GlcNS | 247.7 |
| G | ΔUA→GlcNS6S | 247.7 |
| H | ΔUA2S→GlcNS6S | 191.5 287.6 |
| I | ΔUA2S→GlcNCOEt6S | 275.7 |