Physiological proteomics of the uncultured endosymbiont of Riftia pachyptila
Sievert, Stefan M.
Feldman, Robert A.
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The bacterial endosymbiont of the deep-sea tube worm Riftia pachyptila has never been successfully cultivated outside its host. In the absence of cultivation data we have taken a proteomic approach based on the metagenome sequence to study the metabolism of this peculiar microorganism in detail. As one result, we found that three major sulfide oxidation proteins constitute ~12% of the total cytosolic proteome, highlighting the essential role of these enzymes for the symbiont’s energy metabolism. Unexpectedly, the symbiont uses the reductive tricarboxylic acid (TCA) cycle in addition to the previously identified Calvin cycle for CO2 fixation.
Author Posting. © The Authors, 2006. This is the author's version of the work. It is posted here by permission of AAAS for personal use, not for redistribution. The definitive version was published in Science 315 (2007): 247-250, doi:10.1126/science.1132913.
Suggested CitationPreprint: Markert, Stephanie, Arndt, Cordelia, Felbeck, Horst, Becher, Dorte, Sievert, Stefan M., Hugler, Michael, Albrecht, Dirk, Robidart, Julie, Bench, Shellie, Feldman, Robert A., Hecker, Michael, Schweder, Thomas, "Physiological proteomics of the uncultured endosymbiont of Riftia pachyptila", 2006-11-14, https://doi.org/10.1126/science.1132913, https://hdl.handle.net/1912/1514
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