The crystal structure of an intramolecular trans-sialidase with a NeuAc alpha2-->3Gal specificity.
Luo, Y., Li, S.C., Chou, M.Y., Li, Y.T., Luo, M.(1998) Structure 6: 521-530
- PubMed: 9562562 
- DOI: 10.1016/s0969-2126(98)00053-7
- Primary Citation of Related Structures:  
1SLI, 1SLL - PubMed Abstract: 
Intramolecular trans-sialidase from leech (Macrobdella decora) is a unique enzyme which cleaves the terminal neuraminic acid (NeuAc) residue from sialoglycoconjugates, releasing 2, 7-anhydro-neuraminic acid (2,7-anhydro-NeuAc). It is the first enzyme found to exhibit strictly specific cleavage of NeuAc alpha2-->3Gal linkages in sialoglycoconjugates ...