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Aspartate-derived amino acid pathway. Abbreviations: asp, aspartic acid; hom, homoserine; thr, threonine; met, methionine; lys, lysine; ile, isoleucine; val, valine; leu, leucine; α-KB, alpha-ketobutyrate; AHB, acetohydroxybutyric acid; PYR, pyruvate; AL, acetolactate; AHAS, acetohydroxyacid synthase; TD, threonine dehydratase.
