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Figure 9
The active site of EcAIII in complex with L-Asp from the PDB entry 2zal, chain B (Michalska et al., 2005View full citation). The N-terminal T179 nucleophile as well as two other Thr residues in the active site area (Thr197, Thr230) are in ball-and-stick representation. The oxyanion hole is marked by blue ovals. Water molecules are shown as small red spheres. The most important hydrogen bonds are marked by black dashed lines.

IUCrJ
Volume 13| Part 2| March 2026| Pages 132-145
ISSN: 2052-2525
https://doi.org/10.1107/S2052252525010826