Search for dissertations about: "anabaena pcc 7120"

Showing result 1 - 5 of 7 swedish dissertations containing the words anabaena pcc 7120.

  2. 1. Characterization of the DNA-Binding Properties of the Cyanobacterial Transcription Factor NtcA

    Author : Susanne Wisén; Bengt Mannervik; Enrique Flores; Uppsala universitet; []
    Keywords : MEDICIN OCH HÄLSOVETENSKAP; MEDICAL AND HEALTH SCIENCES; Biochemistry; NtcA; transcription regulation; cyanobacteria; redox regulation; DNA binding; nitrogen fixation; Anabaena PCC 7120; Biokemi; Biochemistry; Biokemi;

    Abstract : Nitrogen is an essential building block of proteins and nucleic acids and, therefore, crucial for the biosphere. Nearly 79 % of the air consists of nitrogen, but in the form of nitrogen gas (N2), which cannot be utilized by most organisms. READ MORE

  4. 2. Regulation, structure and function of glutathione reductase and its transcriptional regulator NtcA from the cyanobacterium Anabaena PCC 7120

    Author : Fanyi Jiang; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Biochemistry; Biokemi; Biochemistry; Biokemi; biokemi; Biochemistry;

    Abstract : Glutathione reductase (GR) is an important antioxidant enzyme in all aerobic life. Theenzyme was purified from cyanobacterium Anabaena PCC 7120 and overexpressed inEscherichia coli. It has physicochemical and kinetic properties similar to GR fromother sources, but unique features in the pyridine nucleotide-binding site. READ MORE

  5. 3. Hydrogenases in the Cyanobacterium Nostoc sp. Strain PCC 73102

    Author : Fredrik Oxelfelt; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Plant physiology; Växtfysiologi; Plant physiology; Växtfysiologi; fysiologisk botanik; Physiological Botany;

    Abstract : Many cyanobacteria are capable of fixing atmospheric N2, a reaction that is also producing H2. This hydrogen is often metabolized by an enzyme called hydrogenase. The aim of the present work was to identify and characterize hydrogen metabolism/hydrogenases in the free-living N2-fixing cyanobacterium Nostoc sp.strain PCC 73102. READ MORE

  6. 4. Regulation of the Cyanobacterial Bidirectional Hydrogenase

    Author : Paulo Oliveira; Peter Lindblad; Aaron Kaplan; Uppsala universitet; []
    Keywords : Biology; Biohydrogen; Cyanobacteria; Synechocystis; Anabaena Nostoc; Bidirectional hydrogenase; Transcription regulation; LexA; AbrB-like protein; Biologi;

    Abstract : Today, mankind faces a new challenge in energetic terms: a new Industrial Revolution is imperative, already called by some as an Energetic Revolution. This corresponds to a conversion to clean, environmentally friendly and renewable energy sources. READ MORE

  7. 5. Cyanobacterial Hydrogen Metabolism : Transcriptional Regulation of the Hydrogenases in Filamentous Strains

    Author : Rikard Axelsson; Peter Lindblad; Tomás Ruiz-Argüeso; Uppsala universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Molecular biology; Molekylärbiologi; Molecular biology; Molekylärbiologi;

    Abstract : Cyanobacteria are a heterogeneous group of phototrophic microorganisms. Many cyanobacteria have the capacity to fix atmospheric nitrogen. During the process of nitrogen fixation, molecular hydrogen is produced. Three enzymes are directly involved in hydrogen metabolism in cyanobacteria. READ MORE