Rubisco kinetic acclimation at the holoenzyme level
Friday, 24-04-2026 | 08:23
In plants, the CO2-fixing enzyme Rubisco is hexadecameric, with each mature holoenzyme containing eight small subunits (SSus). Many plants express multiple SSus and vary their expression in response to environmental cues. Previous work indicates that this may allow fine-tuning of Rubisco’s performance in a variable environment (i.e., kinetic acclimation). Despite SSu pools being heterogeneous and dynamic, nearly no evidence exists for holoenzyme-level heterogeneity.
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Rubisco kinetic acclimation at the holoenzyme level
Rubisco kinetic acclimation at the holoenzyme level
In plants, the CO2-fixing enzyme Rubisco is hexadecameric, with each mature holoenzyme containing eight small subunits (SSus). Many plants express multiple SSus and vary their expression in response to environmental cues. Previous work indicates that this may allow fine-tuning of Rubisco’s performance in a variable environment (i.e., kinetic acclimation). Despite SSu pools being heterogeneous and dynamic, nearly no evidence exists for holoenzyme-level heterogeneity.
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