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  Growth phase dependent regulation of protein composition in Rhodopirellula baltica

Gade, D., Stuehrmann, T., Reinhardt, R., & Rabus, R. (2005). Growth phase dependent regulation of protein composition in Rhodopirellula baltica. Environmental Microbiology, 7(8), 1074-1084. doi:10.1111/j.1462-2920.2005.00784.x.

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Datensatz-Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-85DC-C Versions-Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-85DD-A
Genre: Zeitschriftenartikel
Alternativer Titel : Environ Microbiol

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j.1462-2920.2005.00784.pdf (beliebiger Volltext), 342KB
 
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 Urheber:
Gade, Doerte1, Autor
Stuehrmann, Torben1, Autor
Reinhardt, Richard2, Autor           
Rabus, Ralf, Autor
Affiliations:
1Max Planck Society, ou_persistent13              
2High Throughput Technologies, Max Planck Institute for Molecular Genetics, Max Planck Society, ou_1433552              

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 Zusammenfassung: Growth phase dependent changes of protein composition in the marine bacterium Rhodopirellula baltica were quantitatively monitored by applying the two-dimensional difference gel electrophoresis (2D DIGE) technology. The number of regulated proteins (fold changes in protein abundance > absolute value(2)) increased from early (10) to late stationary growth phase (179), with fold changes reaching maximal values of 40. About 110 of these regulated protein spots were analysed by MALDI-TOF-MS and identified by mapping of peptide masses. Results indicate an opposing regulation of tricarboxylic acid cycle and oxidative pentose phosphate cycle, a downregulation of several enzymes involved in amino acid biosynthesis and an upregulation of the alternative sigma factor sigmaH in stationary phase. Interestingly, 26 proteins of unknown function were up- or downregulated in the stationary phase. Several proteins were specifically regulated during growth on solid surface (agar plates). These proteins could possibly be involved in the development of the different R. baltica morphotypes, i.e. motile swarmer cells and sessile cell aggregates (so-called rosettes).

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Sprache(n): eng - English
 Datum: 2005-08-01
 Publikationsstatus: Erschienen
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 Identifikatoren: eDoc: 273060
DOI: 10.1111/j.1462-2920.2005.00784.x
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Titel: Environmental Microbiology
  Alternativer Titel : Environ Microbiol
Genre der Quelle: Zeitschrift
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Ort, Verlag, Ausgabe: -
Seiten: - Band / Heft: 7 (8) Artikelnummer: - Start- / Endseite: 1074 - 1084 Identifikator: ISSN: 1462-2912