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E-book
Author Moura, Isabel, 1951-

Title Metalloenzymes in Denitrification
Published [Place of publication not identified] : National Book Network International : Royal Society of Chemistry, 2016
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Contents Cover; Metalloenzymes in Denitrification Applications and Environmental Impacts; Preface; Contents; Chapter 1 -- A Bird's Eye View of Denitrification in Relation to the Nitrogen Cycle; 1.1 Introduction; 1.2 The Nitrogen Cycle; 1.3 Classic and New Pathways; 1.3.1 Dissimilatory Nitrate Reduction to Ammonium and Nitrification; 1.3.2 Anaerobic Oxidation of Ammonium to Dinitrogen; 1.3.3 Anaerobic Reduction of Nitrate to Dinitrogen-Denitrification; 1.3.4 New Avenues/New Challenges; 1.4 Book Outlook; Acknowledgements; References
2.6.1 Nitrite Reductases Other than NirS and NirK Implicated in NO Formation2.7 Defence Against NO Toxicity in Bacteria that Reduce Nitrate to Ammonia; 2.7.1 Three Pathways for NO Reduction by Enteric Bacteria; 2.7.2 Is There a High-Affinity But Previously Undiscovered NO Reductase in Anaerobic Bacteria; 2.8 Controversial Claims that the Transcription Factors FNR, OxyR and Fur are Physiologically Relevant NO Sensors; 2.9 Regulation of Gene Expression Under Conditions of Nitrosative Stress; 2.10 Repair of Nitrosylation Damage by the YtfE Protein, also Known as RIC; Acknowledgements; References
Chapter 2 -- Nitric Oxide Production, Damage and Management During Anaerobic Nitrate Reduction to Ammonia2.1 "Things Ain't What They Used to Be!"; 2.2 Overview of Enzymes that Catalyse Denitrification or Nitrite Reduction to Ammonia; 2.3 Dissimilatory Reduction of Nitrate to Ammonia in the Cytoplasm of Gram-Negative Bacteria; 2.4 Nitrate Reduction to Ammonia in the Periplasm of Gram-Negative Bacteria; 2.5 Regulation of Nitrate Reduction to Ammonia by Enteric Bacteria; 2.6 "Denitrification" by Enteric Bacteria that Mainly Reduce Nitrate to Ammonia
Chapter 3 -- Structure, Function and Mechanisms of Respiratory Nitrate Reductases3.1 Introduction; 3.2 Structural and Spectroscopic Properties of Respiratory Nars; 3.2.1 The Catalytic Subunit NarG; 3.2.1.1 The Mo-bisPGD Cofactor; 3.2.1.2 The FeS0 Cluster; 3.2.2 The ET Subunit NarH; 3.2.3 The QH2-Oxidising Subunit NarI; 3.3 Gene Expression Control and Maturation of Respiratory Nars; 3.3.1 Regulation at the Transcriptional and Translational Levels; 3.3.2 NarGHI Maturation and Assembly; 3.4 Metabolic Role; 3.5 Catalytic Mechanism; Acknowledgements; References
Chapter 4 -- Nitrite Reductase -- Cytochrome cd14.1 The Haem Nitrite Reductase Gene nirS; 4.2 The cd1NIR Protein; 4.3 Structure and Reactivity of cd1NIR; 4.3.1 Structure Overview; 4.3.2 Haem Pockets and Reactivity; 4.3.3 Redox-Dependent Conformational Changes; 4.4 Mechanistic Aspects of cd1NIR Catalysis; 4.4.1 Substrate Binding; 4.4.2 Electron Transfer From the c-Haem to the d1-Haem; 4.4.3 Catalysis and Product Release; 4.5 Biogenesis of the c-Haem and the d1-Haem; 4.5.1 c-Haem; 4.5.2 d1-Haem; 4.6 Role of cd1NIR in Biofilm and Quorum Sensing; 4.7 Haem NIR as a Bioresource
Subject Denitrification.
Metalloenzymes.
Form Electronic book
Author Garner, C David
Maia, Luisa B.
Moura, José J. G.
Pauleta, Sofia R.
ISBN 1782623760 (electronic bk)
9781782623762 (electronic bk)