| 1SLI | A:277-759 | LEECH INTRAMOLECULAR TRANS-SIALIDASE COMPLEXED WITH DANA |
| 1SLL | A:277-759 | SIALIDASE L FROM LEECH MACROBDELLA DECORA |
| 2SLI | A:277-759 | LEECH INTRAMOLECULAR TRANS-SIALIDASE COMPLEXED WITH 2,7-ANHYDRO-NEU5AC, THE REACTION PRODUCT |
| 3SLI | A:277-759 | LEECH INTRAMOLECULAR TRANS-SIALIDASE COMPLEXED WITH 2,7-ANHYDRO-NEU5AC PREPARED BY SOAKING WITH 3'-SIALYLLACTOSE |
| 4SLI | A:277-759 | LEECH INTRAMOLECULAR TRANS-SIALIDASE COMPLEXED WITH 2-PROPENYL-NEU5AC, AN INACTIVE SUBSTRATE ANALOGUE |