Disease relevance of Ectothiorhodospira

• Phylogenetic analysis of its 16S ribosomal DNA sequence placed strain MLHE-1 within the haloalkaliphilic Ectothiorhodospira of the gamma-PROTEOBACTERIA: Arsenite oxidation has never been reported for any members of this subgroup of the PROTEOBACTERIA:[1]
• Resonance Raman and surface-enhanced resonance Raman spectra of LH2 antenna complex from Rhodobacter sphaeroides and Ectothiorhodospira sp. excited in the Qx and Qy transitions [2].

High impact information on Ectothiorhodospira

• In this work we have studied a novel betaine biosynthetic pathway in two phylogenically distant extreme halophiles, Actinopolyspora halophila and Ectothiorhodospira halochloris [3].
• A photoactive yellow protein purified from the phototrophic bacterium Ectothiorhodospira halophila, has been crystallized by vapor diffusion from ammonium sulfate solution [4].
• This applies particularly to two photosensors involved in phototactic responses in bacteria: sensory rhodopsin I (SR-I) from Halobacterium salinarium and photoactive yellow protein (PYP) from Ectothiorhodospira halophila [5].
• Chemical reactivity and spectroscopy of the thiol ester-linked p-coumaric acid chromophore in the photoactive yellow protein from Ectothiorhodospira halophila [6].
• The photoreaction center from the purple sulfur bacterium Ectothiorhodospira sp. was illuminated in the presence of reduced cytochrome c or dithionite under anaerobic conditions [7].

Chemical compound and disease context of Ectothiorhodospira

• Molecular and catalytic properties of ribulose 1,5-bisphosphate carboxylase from the photosynthetic extreme halophile Ectothiorhodospira halophila [8].
• When illuminated, washed cell suspensions of Ectothiorhodospira halophila carry out a concentrative uptake of glutamate or proline [9].
• Energy coupling in the active transport of proline and glutamate by the photosynthetic halophile Ectothiorhodospira halophila [9].
• Simultaneous interpretation of Mössbauer, EPR and 57Fe ENDOR spectra of the [Fe4S4] cluster in the high-potential iron protein I from Ectothiorhodospira halophila [10].
• Glycine sarcosine N-methyltransferase (GSMT) and sarcosine dimethylglycine N-methyltransferase (SDMT) of Ectothiorhodospira halochloris catalyze the threefold methylation of glycine to betaine, with S-adenosylmethionine acting as the methyl group donor [11].

Biological context of Ectothiorhodospira

• Amino acid sequence of high-redox-potential ferredoxin (HiPIP) isozymes from the extremely halophilic purple phototrophic bacterium, Ectothiorhodospira halophila [12].
• Plasmid from photosynthetic bacterium Ectothiorhodospira Sp. carries a transposable streptomycin resistance gene [13].
• The temperature dependence of laser-induced (694.3 nm, 30 ns, 10 mJ.cm-2) high-potential cytochrome c (Em=+290 mV) oxidation kinetics was studied in Ectothiorhodospira shaposhnikovii chromatophores [14].

Anatomical context of Ectothiorhodospira

• To understand the molecular mechanisms by which a chromophore and protein interact to undergo a light cycle, we are studying photoactive yellow protein (PYP), a 14-kDa water-soluble photoreceptor from Ectothiorhodospira halophila with a photocycle similar to that of sensory rhodopsin [15].

Gene context of Ectothiorhodospira

• Ferredoxin-linked nitrate reductase from the phototrophic bacterium Ectothiorhodospira shaposhnikovii [16].
• Major outer membrane proteins with porin activity were isolated from cell envelopes of the halophilic strains Ectothiorhodospira shaposhnikovii N1 and Ectothiorhodospira vacuolata beta1 [17].
• Succinate, malate and fumarate uptake in purple sulfur bacterium Ectothiorhodospira shaposhnikovii,. strain 1 K MSU, obligatorily depends on the presence of Na+ [18].

Analytical, diagnostic and therapeutic context of Ectothiorhodospira

• The aim of this study was to investigate the spectral modifications of the LHII antenna complex from the purple bacterium Ectothiorhodospira sp. upon acid pH titration both in the presence and absence of urea [19].

References