c4 cycle

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Kutty
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c4 cycle

In human pyruvate can not converted into phosphoenolpyruvate i.e, it's a irreversible step But in c4 plants how pyruvate is converted into phosphoenolpyruvate?

Ivan Delgado
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Hi Kutty,

Hi Kutty,

This is likely an overly simplistic answer, but plants have a gene encoding pyruvate-phosphate dikinase, which converts pyruvate to phosphoenolpyruvate. Since there is no gene in humans encoding pyruvate-phosphate dikinase we cannot convert pyruvate to phosphoenolpyruvate. In addition, the whole C4 pathway relies on a specialized compartmentalization, which never developed in human (or C3 plants for that matter). 

Kutty
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Thank u sir ur answer very

Thank u sir ur answer very useful to me