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CcmP Carboxysome Domain | 2023 | brass, acrylic | 31 x 34 x 48 cm

CO2 fixation is promoted by encapsulating and co-localizing the CO2-fixing enzymes within a protein shell, the carboxysome. A key feature of the carboxysome is its ability to control selectively the flux of metabolites in and out of the shell. The β-carboxysome shell protein CcmP has been shown to form a double layer of pseudohexamers with a relatively large central pore, which may allow passage of larger metabolites such as the substrate for CO2 fixation through the shell.

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