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Active-site variations within the B3 MBL subclassa
| Variant | Zn1 site | Zn2 site |
|---|---|---|
| Canonical | H116H118H196 | D120H121H263 |
| B3-Q | Q116H118H196 | D120H121H263 |
| B3-E | E116H118H196 | D120H121H263 |
| B3-RQK | H116R118H196 | D120Q121K263 |
Only the ligands for the metal ions in the Zn1 and Zn2 sites are shown. Sequence positions are shown in subscript, and variations from the canonical motif are highlighted in boldface.
