Pronunciation: ă-mē′nō-ī′sō-bū′ti-rāt pī-rū′vāt ă-mē′nō-tranz′fĕr-ās
an enzyme that catalyzes the reversible transfer of an amino group from β-aminoisobutyrate to pyruvate, producing l-alanine and methylmalonate semialdehyde; a step in valine degradation. A deficiency of this enzyme results in hyper-β-aminoisobutyric aciduria.
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Examples: glitazone, GI cocktail, etc.