(4S)-4-hydroxy-2-oxoglutarate => glyoxylate + pyruvate
(4s)-4-hydroxy-2-oxoglutarate => glyoxylate + pyruvate
(4S)-4-hydroxy-2-oxoglutarate => glyoxylate + pyruvate
(4s)-4-hydroxy-2-oxoglutarate => glyoxylate + pyruvate