| 1OI8 | B:363-511; B:363-511 | 5'-NUCLEOTIDASE (E. COLI) WITH AN ENGINEERED DISULFIDE BRIDGE (P90C, L424C) |
| 1OID | B:363-511; B:363-511 | 5'-NUCLEOTIDASE (E. COLI) WITH AN ENGINEERED DISULFIDE BRIDGE (S228C, P513C) |
| 1OIE | A:363-511 | 5'-NUCLEOTIDASE (E. COLI) WITH AN ENGINEERED DISULFIDE BRIDGE (S228C, P513C) |
| 1USH | A:363-511 | 5'-NUCLEOTIDASE FROM E. COLI |