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. 2008 Dec 26;283(52):36608–36616. doi: 10.1074/jbc.M806745200

TABLE 1.

Relative kcat/Km of various mutants from G/LeuRS in ATP-PPi exchange reaction

Substrate GlLeuRS K587A D588A D603A K606R K606E K606L K606D
kcat/Km
ATP 1 0.43 0.57 0.91 0.98 0.90 0.85 0.86
Leu 1 0.42 0.37 0.94 0.99 0.99 0.98 0.83