منابع مشابه
RegA Protein from Rhodobacter capsulatus 235 DNA Binding of Wild Type RegA Protein and Its Differential Effect on the Expresion of Pigment Binding Proteins in Rhodobacter capsulatus
The transcription of genes encoding pigment binding proteins in the facultative photosynthetic bacterium Rhodobacter capsulatus is regulated in response to oxygen partial pressure. Previous results identified RegA and RegB as members of a two component system involved in oxygen dependent synthesis of the photosynthetic apparatus. Here we demonstrate that RegA differentially controls the transcr...
متن کاملSolution structure and DNA binding of the effector domain from the global regulator PrrA (RegA) from Rhodobacter sphaeroides: insights into DNA binding specificity.
Prr/RegA response regulator is a global transcription regulator in purple bacteria Rhodobacter sphaeroides and Rhodobacter capsulatus, and is essential in controlling the metabolic changes between aerobic and anaerobic environments. We report here the structure determination by NMR of the C-terminal effector domain of PrrA, PrrAC. It forms a three-helix bundle containing a helix-turn-helix DNA ...
متن کاملA Study on the Aggregation and Calf Thymus DNA Binding Characteristics of Anionic Cobalt(II) Tetrasulfonated Phthalocyanine
The aggregation behavior of anionic Cobalt(II) 4,4′,4ʺ,4‴-tetrasulfonated phthalocyanine, [Co(TSPc)4-] was studied at its various concentrations and different ionic strengths using optical absorption and resonance light scattering (RLS) spectroscopies in 5 mM phosphate buffer, pH 7.0 at 25 °C. The results show no aggregation behavior at concentration range of 5.1 × 10-6-7....
متن کاملBINDING OF THE ANTITUMOR DRUG ADRIAMYCIN TO DNA-HISTONE COMPLEXES
Isotherms of the binding of the anthracycIine antibiotic, adriamycin (adriblastin), to DNA histone complexes was studied by means of spectroscopic analysis. The results indicated that: (a) binding of adriamycin to histones reduced the interaction of histones with DNA, (b) binding of the drug to DNA did not change the binding affinity of histone to DNA and, (c) in the explored binding range...
متن کاملAutophosphorylation, phosphotransfer, and DNA-binding properties of the RegB/RegA two-component regulatory system in Rhodobacter capsulatus.
In the purple, photosynthetic bacterium, Rhodobacter capsulatus, the RegB/RegA two-component system is required for activation of several anaerobic processes, such as synthesis of the photosynthetic apparatus and assimilation of CO2 and N2. It is believed that RegB is an integral membrane histidine kinase that monitors the external environment. Under anaerobic growth conditions, it transduces a...
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ژورنال
عنوان ژورنال: Journal of Biological Chemistry
سال: 1998
ISSN: 0021-9258
DOI: 10.1074/jbc.273.29.18509