description | Protein located in or on a bacterial microcompartment (BMC), proteinaceous polyhedral shells that encapsulate enzymes. The selectively permeable organelles protect their contents from the cytoplasm and/or the cytoplasm from reactants in their interior Examples of BMCs include carboxysomes, which enhance autotrophic CO(2) fixation by encapsulating RuBisCO and carbonic anhydrase, as well as BMCs involved in ethanolamine or propanediol degradation; both pathways make toxic intermediates. Artifical BMCs can be expressed and filled with cargo proteins for biotechnological uses. BMCs are found in many bacterial phyla; in most cases their cargo is unknown |