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Picture
Ribbon view of the Orange Carotenoid Protein molecular structure (RCSB Protein Data Bank accession code 1M98). Key structural elements include the N-terminal domain (red), C-terminal domain (cyan), interdomain linker (purple), and the carotenoid chromophore (orange ball and sticks). The OCP crystallizes as a homodimer.
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Ribbon view of the Orange Carotenoid Protein by Ryan Leverenz and Cheryl Kerfeld is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Picture
The visible absorbance spectrum of Orange Carotenoid Protein in its OCPo form (solid line) and illuminated OCPr form (dashed line). The OCPr form is obtained by illuminating the protein with a blue Light Emitting Diode.
ocpo_vs_ocpr_kerfeld.svg
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Absorbance spectrum of Orange Carotenoid Protein by Ryan Leverenz and Cheryl Kerfeld is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

Picture
Electron micrograph of (A) alpha-carboxysomes in Halothiobacillus neapolitanus and (B) beta-carboxysomes in Synechococcus elongatus PCC 7942. Arrowheads highlight carboxysomes. Scale bars indicate 200 nm.
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Electron micrograph of alpha and beta carboxysomes by Raul Gonzalez and Cheryl Kerfeld is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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Model for the structure of the carboxysome. RuBisCO and carbonic anhydrase are arranged in an enzymatic core (organized by various core proteins) and encapsulated by a protein shell.
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Model for the structure of the carboxysome by Raul Gonzalez, Seth Axen, and Cheryl Kerfeld is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.

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The three types of BMC shell proteins by Seth Axen, Markus Sutter, Sarah Newnham, Clement Aussignargues, and Cheryl Kerfeld is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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Generalized function schematic for experimentally characterized BMCs by Seth Axen and Cheryl Kerfeld is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
Based on a work at http://journals.plos.org/ploscompbiol/article?id=10.1371/journal.pcbi.1003898.

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Synechococcus elongatus PCC 7942 electron micrograph showing carboxysomes by Raul Gonzalez and Cheryl Kerfeld is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.
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PDU BMC genes expressed in Escherichia coli by Joshua Parsons, Steffanie Frank, Sarah Newnham, and Martin Warren is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License.