An unexpected sticking point for carboxysome assembly

The Journal of Biological Chemistry
F Grant Pearce

Abstract

In order to improve photosynthetic efficiency, bacteria often enclose RubisCO and carbonic anhydrase into microcompartments called carboxysomes. Assembly of these complexes requires a protein called CcmM. It had previously been thought that CcmM mediated RubisCO assembly by displacing one of the RubisCO subunits, Ryan et al. show that despite having a three-dimensional structure that closely resembles the RubisCO small subunit, CcmM does not dislodge it, leading to a proposal for an alternative binding location. These results provide a new model for carboxysome assembly with implications for photosynthetic engineering.

References

Feb 12, 2009·Proceedings of the National Academy of Sciences of the United States of America·Stefan RaunserThomas Walz
May 9, 2014·The Plant Journal : for Cell and Molecular Biology·Myat T LinMaureen R Hanson
Sep 19, 2014·Nature·Myat T LinMaureen R Hanson
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Aug 15, 2017·Molecular Cell·Javaid Y BhatManajit Hayer-Hartl
Sep 5, 2018·Nature Communications·Benedict M LongG Dean Price

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