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Synergistic role of Rubisco inhibitor release and degradation in photosynthesis.

The New phytologist - 1 Feb 2025

Pasch Viviana, Leister Dario, Rühle Thilo

Abstract excerpt

Ribulose-1,5-bisphosphate carboxylase/oxygenase (Rubisco) exhibits catalytic promiscuity, resulting in error-prone reactions and the formation of inhibitory sugar phosphates. Specifically, Xylulose-1,5-bisphosphate (XuBP) acts as an inhibitor by binding to the active site of Rubisco, thereby impairing its catalytic function. Thermolabile Rubisco activase (Rca) facilitates the release of such inhibitors, including...

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PMID: 39623766
DOI: 10.1111/nph.20317

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