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Figure 4
Structural comparison of AtGABA-T with class II and class III aminotransferases. (a) Superposition of AtGABA-T with Sus scrofa GABA aminotransferase (PDB entry 1ohv), a representative class II aminotransferase. (b) Superposition of AtGABA-T with an ω-transaminase (PDB entry 6g4e), a representative class III aminotransferase. In both panels, the query structures are colored according to the Cα root-mean-square deviation (r.m.s.d.) values relative to AtGABA-T. The color gradient ranges from blue (0 Å) to red (10 Å), indicating high and low structural conservation, respectively. The overall fold of AtGABA-T shows greater structural similarity to the class III ω-transaminase than to the class II enzyme. |

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