TABLE 1.
The CS/DS disaccharide and unsaturated disaccharide produced by CS/DS lyase.
| CS units | DS units | Unsaturated units | |||
| Unit | Sequence | Unit | Sequence | Unit | Sequence |
| O unit | GlcAβ1-3GalNAc | iO unit | IdoAα1-3GalNAc | ΔO unit | ΔHexA-GalNAc |
| A unit | GlcAβ1-3GalNAc(4S) | iA unit | IdoAα1-3GalNAc(4S) | ΔA unit | ΔHexA-GalNAc(4S) |
| B unit | GlcA(2S)β1-3GalNAc(4S) | iB unit | IdoA(2S)α1-3GalNAc(4S) | ΔB unit | ΔHexA(2S)-GalNAc(4S) |
| C unit | GlcAβ1-3GalNAc(6S) | iC unit | IdoAα1-3GalNAc(6S) | ΔC unit | ΔHexA-GalNAc(6S) |
| D unit | GlcA(2S)β1-3GalNAc(6S) | iD unit | IdoA(2S)α1-3GalNAc(6S) | ΔD unit | ΔHexA(2S)-GalNAc(6S) |
| E unit | GlcAβ1-3GalNAc(4S,6S) | iE(H) unit | IdoAα1-3GalNAc(4S,6S) | ΔE unit | ΔHexA-GalNAc(4S,6S) |
| F unit | GlcAβ1-3GalNAc(4S) — Fuc(α1-3) | iK unit | IdoA(3S)α1-3GalNAc(4S) | ΔF unit | ΔHexA-GalNAc(4S) — Fuc(α1-3) |
| G unit | GlcAβ1-3GalNAc(4S) — Glc(β1-6) | iL unit | IdoA(3S)α1-3GalNAc(6S) | ΔG unit | ΔHexA-GalNAc(4S) — Glc(β1-6) |
| K unit | GlcA(3S)β1-3GalNAc(4S) | iT unit | IdoA(2S)α1-3GalNAc(4S,6S) | ΔK unit* | ΔHexA(3S)-GalNAc(4S) |
| L unit | GlcA(3S)β1-3GalNAc(6S) | iU unit | IdoA(2S)α1-3GalNAc | ΔL unit* | ΔHexA(3S)-GalNAc(6S) |
| M unit | GlcA(3S)β1-3GalNAc(4S,6S) | ΔM unit* | ΔHexA(3S)-GalNAc(4S,6S) | ||
| T unit | GlcA(2S)β1-3GalNAc(4S,6S) | ΔT unit | ΔHexA(2S)-GalNAc(4S,6S) | ||
| U unit | GlcA(2S)β1-3GalNAc | ΔU unit | ΔHexA(2S)-GalNAc | ||
*The disaccharides containing ΔHexA (3S) are unstable and result in sulfated GalNAc.