Read Acetobacter and the TCA Cycle
A focused read on the specialized TCA-cycle step that lets Acetobacter metabolize acetate.
Living-system questions are solved by matching a structure or organism to its function, process and stated condition.
AarC links acetate to the TCA cycle
Acetobacter aceti can use an acetate:succinate CoA-transferase (AarC) in place of the usual succinyl-CoA synthetase step. The transferase exchanges CoA between acetate and succinyl-CoA, producing acetyl-CoA and succinate and connecting acetate metabolism with a modified TCA cycle. This explains the acetate-related answer in the linked NSEB question; it is not the ethanol-oxidation reaction that initially produces vinegar.
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- ✓Identify acetate as the CoA acceptor in the AarC reaction.
Acetate assimilation/oxidation through the modified TCA cycle is distinct from ethanol oxidation to acetic acid during vinegar production.
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