11. Lactic acid fermentation converts pyruvate to fermentation for the details. 12. It is involved in the production of oxaloacetate from pyruvate . 13. Pyruvate dehydrogenase phosphatase is a heterodimer consisting of catalytic and regulatory subunits.14. L-serine to yield pyruvate , with the release of ammonia. 15. This enzyme participates in pyruvate metabolism and is constitutively expressed. 16. This enzyme participates in biosynthesis of L-leucine and pyruvate metabolism. 17. Lactate dehydrogenase catalyzes the interconversion of pyruvate and NAD +. 18. Alanine and lactate are major gluconeogenic precursors that enter gluconeogenesis as pyruvate . 19. It should not be confused with pyruvate , water dikinase. 20. This protein may tightly associate or interact with the pyruvate dehydrogenase complex.