| Mechanism | b-elimination | 
|---|---|
| 3D Structure Status | ( α / α ) 6 toroid + anti-parallel β-sheet | 
| Note | heparin lyase II enzymes have simultaneously heparin lyase (heparin lyase I) and heparin-sulfate lyase (heparin lyase III) activity ; distantly related to family PL15; | 
| External resources | CAZypedia; | 
| Statistics | GenBank accession (28); Uniprot accession (3); PDB accession (4); 3D entries (1); cryst (0) | 
| Activity Id | EC# | Activity Name | Residue -2 | Bond -1 | Residue -1 | Reacting Bond | Residue +1 | Bond +1 | Residue +2 | Reactant | 
| L361 | 4.2.2.7 | heparin lyase | aLIdopA_2S | 1,4 | aDGlcpNS_6S | 1,4 | aLIdopA_2S | 1,4 | aDGlcpNS_6S | |
| L362 | 4.2.2.8 | heparin-sulfate lyase | bDGlcpA | 1,4 | aDGlcpNAc | 1,4 | bDGlcpA | 1,4 | aDGlcpNAc | |
| L373 | 4.2.2.- | acharan-sulfate lyase | aLIdopA_2S | 1,4 | aDGlcpNAc | 1,4 | aLIdopA_2S | 1,4 | aDGlcpNAc | |
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