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Figure 12
Superposition in the active site area of two ErA complexes, one with L-Asp (PDB ID 5f52, chain A, blue) and one with L-Glu (PDB ID 5wh0, chain C, beige). The ErA Thr15/Thr95 residues correspond to Thr12/Thr90 in EcAII. In the L-Glu complex, the functional group of the L-Glu ligand has a non-productive conformation and the Thr15 nucleophile is rotated away from the ligand.

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