4-methyl-2-oxopentanoate + L-alanine <=> L-leucine + pyruvate
4-methyl-2-oxopentanoate + l-alanine <=> l-leucine + pyruvate
4-methyl-2-oxopentanoate + L-alanine <=> L-leucine + pyruvate
4-methyl-2-oxopentanoate + l-alanine <=> l-leucine + pyruvate