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Topic: Gamma Proteobacteria


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  Proteobacteria - Wikipedia, the free encyclopedia
The group is defined mainly in terms of ribosomal RNA sequences, and is named for the Greek god Proteus (also the name of a bacterial genus within the Proteobacteria), who could change his shape, because of the great diversity of forms found in it.
All Proteobacteria are Gram-negative, with an outer membrane mainly composed of lipopolysaccharides.
The proteobacteria are divided into five sections, referred to by the Greek letters alpha through epsilon, again based on rRNA sequences.
www.wikipedia.org /wiki/Proteobacteria   (489 words)

  
 Proteobacteria
The Proteobacteria are a major group of bacteria, including many important nitrogen fixing bacteria and pathogens.
Proteobacteria have cell walls composed mainly of lipopolysaccharides[?], giving them gram-negative stains.
The proteobacteria are divided into five major groups, sometimes treated as classes, which are labelled with the Greek letters alpha through epsilon.
www.ebroadcast.com.au /lookup/encyclopedia/pr/Proteobacteria.html   (132 words)

  
 Encyclopedia: Proteobacteria   (Site not responding. Last check: 2007-10-06)
Acetobacter is a genus of acetic acid bacteria characterized by the ability to convert alcohol (ethanol) to acetic acid in the presence of air.
Neisseria is a genus of bacteria, included among the proteobacteria, a large group of gram-negative forms.
Purple bacteria are proteobacteria that are phototrophic, i.
www.nationmaster.com /encyclopedia/Proteobacteria   (2434 words)

  
 Patent 5804424: Process for the production of hydrogen using photosynthetic proteobacteria
The invention relates to Proteobacteria that show unusually high level resistance to a wide range of metal oxides and oxyanions and to methods using selected Proteobacteria subgroups for efficient reduction of certain metal oxides and oxyanions to the free metal.
Proteobacteria are grown aerobically in minimal medium preferably having a carbon source that has a low oxidation state.
The invention generally relates to Proteobacteria having the ability under certain conditions to efficiently reduce metal oxides and oxyanions to the free metal, and to their ability to survive in the presence of a wide range of metal oxides and oxyanions.
www.freepatentsonline.com /5804424.html   (6604 words)

  
 Eubacterial Classification   (Site not responding. Last check: 2007-10-06)
Proteobacteria (alpha Proteobacteria, beta Proteobacteria, delta and epsilon, gamma Proteobacteria)
Proteobacteria or purple photosynthetic bacteria and nonphotosynthetic relatives
The Proteobacteria are the gram-negatives, all of which are thought to have derived from an ancestral purple photosynthetic bacterium.
www.phage.org /biol3018.htm   (2239 words)

  
 Proteobacteria
Classically, the photosynthetic proteobacteria were placed in two families, the Chromatiaceae and the Ectothiorhodospiraceae.
The purple sulfur bacteria are generally beta or gamma proteobacteria, utilize sulfide as an electron donor and can tolerate high concentrations of sulfide.
Delta- and epsilon- proteobacteria are not photosynthetic; all are chemoorganotrophs
www.life.umd.edu /labs/delwiche/PSlife/lectures/Proteo.html   (304 words)

  
 Online-Lexikon: Proteobacteria   (Site not responding. Last check: 2007-10-06)
Die Proteobacteria stellen eine der größeren Abteilungen der Bakterien dar.
Die Zellwände der Proteobacteria bestehen insbesondere aus Lipopolysacchariden, daher sind sie gramnegativ.
Die Proteobacteria werden in fünf Hauptgruppen eingeteilt, die teilweise als Klasse angesehen werden, und mit den griechischen Buchstaben Alpha bis Epsilon bezeichnet werden.
www.academicus.ch /de/proteobacteria.html   (186 words)

  
 Learn more about Proteobacteria in the online encyclopedia.   (Site not responding. Last check: 2007-10-06)
Learn more about Proteobacteria in the online encyclopedia.
Enter a phrase or search word in the box below.
Hint: Play with putting spaces before and after your words to see the different results you get.
www.onlineencyclopedia.org /p/pr/proteobacteria.html   (222 words)

  
 InterPro: IPR010097 Malate dehydrogenase, NAD-dependent, eukaryotes and gamma proteobacteria
IPR010097 Malate dehydrogenase, NAD-dependent, eukaryotes and gamma proteobacteria 30-340
IPR010097 Malate dehydrogenase, NAD-dependent, eukaryotes and gamma proteobacteria 44-354
IPR010097 Malate dehydrogenase, NAD-dependent, eukaryotes and gamma proteobacteria 26-336
www.ebi.ac.uk /interpro/IEntry?ac=IPR010097   (2590 words)

  
 Purple Bacteria
The phylum of the proteobacteria, defined on the basis of 16S r-RNA analysis, forms a large and diverse group of phototrophic and non-phototrophic, chemoheterotrophic, gram-negative organisms.
The proteobacteria are subdivided into five subgroups, labeled alpha to epsilon.
All phototrophic proteobacteria contain a light-driven electron transport chain composed of an RCII-type photosystem, a cytochrome bc 1 complex and soluble or membrane-bound electron carriers (cyt c2, cyt c8, cyt cy or HiPIP).
bip.cnrs-mrs.fr /bip09/purples.html   (593 words)

  
 A key role for the mRNA leader structure in translational control of ribosomal protein S1 synthesis in ...   (Site not responding. Last check: 2007-10-06)
The efficient and autoregulated E.coli rpsA TIR comprises not less than 90 nt upstream of the translation start and can be unambiguously folded into three irregular hairpins (HI, HII and HIII) separated by A/U-rich single-stranded regions (ss1 and ss2).
Phylogenetic comparison revealed that this specific fold is highly conserved in the gamma-subdivision of proteobacteria (but not in other subdivisions), except for the Pseudomonas group.
To test phylogenetic predictions experimentally, we have generated rpsA'-'lacZ translational fusions by inserting the rpsA TIRs from various gamma-proteobacteria in-frame with the E.coli chromosomal lacZ gene.
www.pdg.cnb.uam.es /UniPub/iHOP/gp/10193982.html   (163 words)

  
 Genome Biology | Full text | Reconstruction of regulatory and metabolic pathways in metal-reducing delta-proteobacteria
Relatively little is known about the genetic basis for the unique physiology of metal-reducing genera in the delta subgroup of the proteobacteria.
The delta subdivision of proteobacteria is a very diverse group of Gram-negative microorganisms that include aerobic genera Myxococcus with complex developmental lifestyles and Bdellovibrio, which prey on other bacteria [ 1 ].
Since various other proteobacteria also have the same clusters including nikK and nikL, but not nikN (data not shown), we propose that these two genes encode additional periplasmic components of the NikMQO ABC transporter, possibly involved in the nickel binding.
genomebiology.com /2004/5/11/R90   (10080 words)

  
 [No title]   (Site not responding. Last check: 2007-10-06)
The -Subdivision is comprised of genetically similar bacteria of the Kingdom Proteobacteria.
The ability to thrive chemolithotropically on reduced sulfur compounds is a characteristic of a diverse group of Proteobacteria.
The -Subdivision of the Kingdom Proteobacteria is comprised of many different genera of microorganisms.
www.homepage.montana.edu /~umbls/mb301/gammaproteo.htm   (3879 words)

  
 Proteobacteria - netlexikon
Die Proteobacteria stellen eine der größeren als Abteilungen oder als Stämme (im Sinne von Phylum) angesehenen Gruppen der Domäne der Bakterien dar.
Die Proteobacteria werden in fünf Hauptgruppen eingeteilt, die als Klasse angesehen werden, und die griechischen Buchstaben Alpha bis Epsilon als Präfix erhalten: Alphaproteobacteria bis Epsilonproteobacteria.
The Prokaryotes : A Handbook on the Biology of Bacteria:Vol 6: Proteobacteria: Gamma Subclass von Martin M. Dworkin, Stanley Falkow, Eugene Rosenberg, Karl-Heinz Schleifer, Erko Stackebrandt
www.lexikon-definition.de /Proteobacteria.html   (286 words)

  
 RedNova News - Science - Gamma Proteobacteria Can Modulate Legumes of the Genus Hedysarum   (Site not responding. Last check: 2007-10-06)
On the basis of these findings we can not exclude the possibility that in the near future even examples outside the phylum Proteobacteria (such as, e.g., gram-positive microorganisms), will have to be added to these lists.
What will be addressed in next research goals is whether the role of these bacteria is that of symbiotic nitrogen fixers and, if that were the case, whether or not the underlying genetics complies to classic nod genes/nod factor models.
Moulin, L., Munive, A., Dreyfus, B., Boivin-Masson, C.: Nodulation of legumes by members of the beta-subclass of Proteobacteria.
www.rednova.com /news/display/?id=87658   (4054 words)

  
 Tramadol, buy tramadol, antibiotics, Weight Loss drugs, weight loss herbs, weight loss herbal formula, weight loss, ...   (Site not responding. Last check: 2007-10-06)
Escherichia coli LexA protein is the repressor of a gene network whose members are directly involved in the repair of damaged DNA and in the survival of bacterial cells until DNA lesions have been eliminated.
The lexA gene is widely present in bacteria, although the sequences of only three LexA-binding sites are known: Gram-positive, alpha Proteobacteria and some members of gamma Proteobacteria represented by E. coli.
This is the first LexA binding sequence identified in the gamma Proteobacteria differing from the E. coli-like LexA box.
auramon.com /ref-pathogen-1/pathogen-research-abs5.1509.html   (1692 words)

  
 InterPro: IPR010196 O-succinylbenzoic acid (OSB) synthetase, gamma proteobacteria and archaea
IPR010196 O-succinylbenzoic acid (OSB) synthetase, gamma proteobacteria and archaea
IPR010196 O-succinylbenzoic acid (OSB) synthetase, gamma proteobacteria and archaea 7-306
O-succinylbenzoic acid (OSB) synthetase, gamma proteobacteria and archaea
www.ebi.ac.uk /interpro/IEntry?ac=IPR010196   (2510 words)

  
 EPOB 3400 Microbiology Lecture 5
The Proteobacteria are a huge group of organisms with as much metabolic diversity as the Plants and Animals combined.
One common attribute of most of the facultative anaerobes is that they are capable of living dual lives.
For example, many bioluminescent bacteria can use their anaerobic capabilities to live in the guts of fish and their aerobic abilities to live in the light organs of fish or to survive in the aerobic waters of the open oceans.
spot.colorado.edu /~schmidts/Teaching/EPOB3400/micro5-2000.html   (1309 words)

  
 Evidence that Bacteroides nodosus belongs in subgroup gamma of the class Proteobacteria, not in the genus Bacteroides: ...   (Site not responding. Last check: 2007-10-06)
Evidence that Bacteroides nodosus belongs in subgroup gamma of the class Proteobacteria, not in the genus Bacteroides: partial sequence analysis of a B. nodosus 16S rRNA gene -- La Fontaine and Rood 40 (2): 154 -- International Journal of Systematic and Evolutionary Microbiology
Evidence that Bacteroides nodosus belongs in subgroup gamma of the class Proteobacteria, not in the genus Bacteroides: partial sequence analysis of a B. nodosus 16S rRNA gene
belongs in subgroup gamma of the class Proteobacteria.
ijs.sgmjournals.org /cgi/content/abstract/40/2/154   (230 words)

  
 Figure F3. A. Phylogenetic tree of the partial 16S rDNA sequences, except the gamma Proteobacteria (see Fig. F3B), from ...   (Site not responding. Last check: 2007-10-06)
Phylogenetic tree of the partial 16S rDNA sequences, except the gamma Proteobacteria (see Fig.
The scale bar corresponds to 0.1 change per nucleotide.
Phylogenetic tree of the partial 16S rDNA sequences grouping within the gamma Proteobacteria from microbes from encircled basalt samples and reference strains.
www-odp.tamu.edu /publications/187_SR/203/203_f3.htm   (164 words)

  
 IngentaConnect Gamma Proteobacteria Can Nodulate Legumes of the Genus Hedysarum   (Site not responding. Last check: 2007-10-06)
IngentaConnect Gamma Proteobacteria Can Nodulate Legumes of the Genus Hedysarum
Gamma Proteobacteria Can Nodulate Legumes of the Genus Hedysarum
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api.ingentaconnect.com /content/urban/221/2004/00000027/00000004/art00009   (415 words)

  
 Analysis of the gamma proteobacteria LexA regulon
An in-depth analysis of the LexA regulon of the gamma proteobacteria species Escherichia coli, Pasteurella multocida, Pseudomonas aeruginosa, Ralstonia solanacearum, Salmonella typhimurium, Shigella flexneri, Vibrio cholerae and Yersinia pestis was conducted with RCGScanner, using as experimental knowledge reported SOS genes and LexA boxes in E.
The analysis also included a survey of the LexA regulon in Klebsiella pneumoniae and control searches in alpha proteobacteria ( Sinorhizobium meliloti) and gram-positive bacteria ( Bacillus subtilis).
Regulon structure (putative LexA boxes) in different gamma proteobacteria genomes (as deduced from sensitive and restrictive searches and manual annotation).
www.cnm.es /~ivan/RCGScanner/analysis.htm   (220 words)

  
 In silico analysis reveals substantial variability in the gene contents of the gamma proteobacteria LexA-regulon -- ...
conduct an in-depth analysis of the LexA-regulon of gamma proteobacteria,
that the LexA-regulon of gamma proteobacteria displays in terms
Differences in LexA regulon structure among Proteobacteria through in vivo assisted comparative genomics
bioinformatics.oupjournals.org /cgi/content/abstract/19/17/2225   (319 words)

  
 Comparative genomics of bacterial zinc regulons: Enhanced ion transport, pathogenesis, and rearrangement of ribosomal ...
is regulated by zinc repressors ZUR of proteobacteria and Gram-positive
Phylogenetic tree of ZUR repressors from proteobacteria and consensuses of binding sites.
Underlines, center of symmetry of inverted palindromes; boldfaced type, positions coinciding among the three signals.
www.pnas.org /cgi/content/full/100/17/9912   (4787 words)

  
 Secondary ({gamma}-Proteobacteria) Endosymbionts Infect the Primary ({beta}-Proteobacteria) Endosymbionts of Mealybugs ...
of the ß-subdivision of the Proteobacteria, in marked
of the ß-subdivision of the Proteobacteria ( B.
of the ß-subdivision of the Proteobacteria ( 46).
aem.asm.org /cgi/content/full/68/7/3190   (4423 words)

  
 A new regulatory DNA motif of the gamma subclass Proteobacteria: identification of the LexA protein binding site of the ...
A new regulatory DNA motif of the gamma subclass Proteobacteria: identification of the LexA protein binding site of the plant pathogen Xylella fastidiosa -- Campoy et al.
A new regulatory DNA motif of the gamma subclass Proteobacteria : identification of the LexA protein binding site of the plant pathogen Xylella fastidiosa
LexA binding sequence identified in the gamma Proteobacteria
mic.sgmjournals.org /cgi/content/abstract/148/11/3583   (363 words)

  
 APPLICATION OF IN SITU REVERSE TRANSCRIPTION TO ESTUARINE BACTERIAL COMMUNITY ANALYSIS   (Site not responding. Last check: 2007-10-06)
APPLICATION OF IN SITU REVERSE TRANSCRIPTION TO ESTUARINE BACTERIAL COMMUNITY ANALYSIS
Bacterial communities along a salinity gradient (0 to 30 ‰) on the Satilla River in southern Georgia were analyzed by in situ reverse transcription (ISRT) using primers specific for the beta, gamma, delta, marine alpha proteobacteria, and for all eubacteria.
Bacteria giving a positive ISRT reaction with the eubacterial primer accounted for 76, 43, and 85% of total DAPI-positive cells at stations with salinities of 34.8, 24.6, and 0 ‰, respectively.
www.aslo.org /santafe99/abstracts/SS41TU0200S.html   (221 words)

  
 Karl Gamma, Compare Book Prices & Find Cheap New, Used Books
Prokaryotes: A Handbook on the Biology of Bacteria: Proteobacteria - Gamma Subclass v.
Prokaryotes: A Handbook on the Biology of Bacteria: Proteobacteria Gamma and Epsilon Subclass v.
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www.bookfinder4u.co.uk /book_search/Karl_Gamma.html   (108 words)

  
 ISMB 2001 Poster Abstracts
We use this computational method to screen the E.coli genome using whole genome comparison to four other gamma proteobacteria genome sequences.
Each grammar models a different functional pattern of evolution: coding which favours synonymous mutations; RNA which models a pattern of compensatory base changes; and a null hypothesis of position-independent evolution.
Here we report the results of applying this computational screen to the E. coli genome, using whole genome comparisons to four other gamma proteobacterial genome sequences.
ismb01.cbs.dtu.dk /poster_abstracts.html   (14171 words)

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