Original article | published - printed | peer reviewed
Status quo in physiological proteomics of the uncultured Riftia pachyptila endosymbiont
PROTEOMICS
2011 ;
11(15):
3106 - 3117
Authors
Markert S*1, Gardebrecht A, Felbeck H, Sievert S, Klose J, Becher D2, Albrecht D3, Thurmer A, Daniel R, Kleiner M, Hecker M, Schweder T1
Affiliations
Abstract
Riftia pachyptila, the giant deep-sea tube worm, inhabits hydrothermal vents in the Eastern Pacific ocean. The worms are nourished by a dense population of chemoautotrophic bacterial endosymbionts. Using the energy derived from sulfide oxidation, the symbionts fix CO(2) and produce organic carbon, which provides the nutrition of the host. Although the endosymbionts have never been cultured, cultivation-independent techniques based on density gradient centrifugation and the sequencing of their (meta-) genome enabled a detailed physiological examination on the proteomic level. In this study, the Riftia symbionts' soluble proteome map was extended to a total of 493 identified proteins, which allowed for an explicit description of vital metabolic processes such as the energy-generating sulfide oxidation pathway or the Calvin cycle, which seems to involve a reversible pyrophosphate-dependent phosphofructokinase. Furthermore, the proteomic view supports the hypothesis that the symbiont uses nitrate as an alternative electron acceptor. Finally, the membrane-associated proteome of the Riftia symbiont was selectively enriched and analyzed. As a result, 275 additional proteins were identified, most of which have putative functions in electron transfer, transport processes, secretion, signal transduction and other cell surface-related functions. Integrating this information into complex pathway models a comprehensive survey of the symbiotic physiology was established.
Further details
Proteomics;Markert, Stephanie
Gardebrecht, Antje
Felbeck, Horst
Sievert, Stefan M
Klose, Julia
Becher, Dorte
Albrecht, Dirk
Thurmer, Andrea
Daniel, Rolf
Kleiner, Manuel
Hecker, Michael
Schweder, Thomas
Research Support, Non-U.S. Gov't
Research Support, U.S. Gov't, Non-P.H.S.
Germany
Proteomics. 2011 Aug;11(15):3106-17. doi: 10.1002/pmic.201100059. Epub 2011 Jun 28.
Published in
PROTEOMICS
Year | 2011 |
Impact Factor (2011) | 4.505 |
Volume | 11 |
Issue | 15 |
Pages | 3106 - 3117 |
Open Access | nein |
Peer reviewed | ja |
Article type | Original article |
Article state | published - printed |
DOI | 10.1002/pmic.201100059 |
Common journal data
Short name: PROTEOMICS
ISSN: 1615-9853
eISSN: 1615-9861
Country: GERMANY (FED REP GER)
Language: English
Categories:
Impact factor trend
ISSN: 1615-9853
eISSN: 1615-9861
Country: GERMANY (FED REP GER)
Language: English
Categories:
- BIOCHEMISTRY & MOLECULAR BIOLOGY
- BIOCHEMICAL RESEARCH METHODS
Impact factor trend
Year | Impact Factor |
---|---|
2008 | 4.586 |
2009 | 4.426 |
2010 | 4.815 |
2011 | 4.505 |
2012 | 4.132 |
2013 | 3.973 |
2014 | 3.807 |
2015 | 4.079 |
2016 | 4.041 |
2017 | 3.532 |
2018 | 3.106 |
2019 | 3.254 |
2020 | 3.984 |
2021 | 5.393 |
2022 | 3.4 |