Reactions replenishing TCA intermediates drained for biosynthesis (amino acids, heme). Pyruvate carboxylase (pyruvate → oxaloacetate) is the key anaplerotic entry.
Reactions replenishing TCA intermediates drained for biosynthesis (amino acids, heme). Pyruvate carboxylase (pyruvate → oxaloacetate) is the key anaplerotic entry.