L-Leucine 2,3-aminomutase

The second class of B12-dependent enzymes is represented by the aminomutases. All reactions in this class involve the 1,2-shift of an amino group. More often than not, the substrates involved in these transformations are the all-important a-amino acids. A typical such example is provided by L-leucine-2,3-amino mutase (reaction d in Scheme 2). 

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