Haematin Enzymes - 1st Edition - ISBN: 9781483196466, 9781483221496

Haematin Enzymes

1st Edition

A Symposium of the International Union of Biochemistry Organized by the Australian Academy of Science Canberra

Editors: J. E. Falk R. Lemberg R. K. Morton
eBook ISBN: 9781483221496
Imprint: Pergamon
Published Date: 1st January 1961
Page Count: 384
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Description

International Union of Biochemistry, Volume 19: Haematin Enzymes, Part 1 provides information pertinent to the fundamental aspects of hematin enzymes. This book covers a variety of topics, including porphyrin complexes, chemical reactions of iron complexes, hemoprotein molecules, metalloporphyrins, and oxyhemoglobins.

Organized into 22 chapters, this volume begins with an overview of the relevance of magnetic susceptabilitty and magnetic resonance data. This text then examines studies on electron-transfer processes involving metal ions and shows how the electronic structures of the hem enzymes may be relevant to the types of electron-transfer that can take place. Other chapters consider the implications of the coordination of organic molecules to metal ions. This book presents as well a comparison between known properties and reactions of some simple iron complexes with chelating and conjugated ligands. The final chapter deals with the chemical structures of the prosthetic groups of the cytochromes of type a.

This book is a valuable resource for scientists, theorists, and research workers.

Table of Contents


Participants

Presidential Address

The Electronic Structure and Electron Transport Properties of Metal Ions Particularly in Porphyrin Complexes

Discussion

Terminology in Ligand-Field Theory

Spin States of Haem Compounds

Electron Transport

Mechanism of Oxidative Phosphorylation

The Role of the Metal in Porphyrin Complexes

Discussion

Higher Oxidation States

Effects of Metal on Reactivity at Periphery

The Physico-Chemical Behaviour of Porphyrins Solubilized in Aqueous Detergent Solutions

Discussion

Cations of Porphyrins and their Spectra

The Reactions Between Metal Ions and Porphyrins

Some Physical Properties and Chemical Reactions of Iron Complexes

Discussion

Oxidation-Reduction Potentials of Haem Compounds

Spectra and Redox Potentials of Metalloporphyrins and Haemoproteins

Discussion

Correlations Between Structure and Physical Properties

Models for Haemoproteins

Some New Compounds of Haems with Bases

Carbon Monoxide-Pyridine Complexes with Haems

Equilibrium Constants for Reactions of Haems with Ligands

Modification of the Secondary Structure of Haemoprotein Molecules

Discussion

The Haem-Binding Groups in Haemoproteins

The Nature of Haem-Binding, and the Bohr Effect

Models for Linked Ionizations in Haemoproteins

On the Stability of Oxyhaemoglobin

Discussion

Oxygenation ofHaemoglobin

Ferrihaemoprotein Hydroxides: A Correlation Between Magnetic and Spectroscopic Properties

Discussion

Spin States and Spectra of Haemoproteins

The Electronic Origins of the Spectra

Analysis and Interpretation of Absorption Spectra of Haemin Chromoproteins

Discussion

Interpretation of Absorption Spectra of Haemoproteins

The Bands in the Region of 830 and 280 mμ

The Haem-Globin Linkage. 3. The Relationship Between Molecular Structure and Physiological Activity of Haemoglobins

Discussion

Native Globin

The Linkage of Iron and Protein in Haemoglobin

Early Stages in the Metabolism of Iron

The Enzymic Incorporation of Iron into Protoporphyrin

Discussion

The Formation of Metal-Porphyrin Complexes

Co-Ordination of Divalent Metal Ions with Porphyrin Derivatives Related to Cytochrome c

Metal Incorporation in Model Systems

On the Enzymic Incorporation of Iron

Biosynthesis and Metabolism of Cytochrome c

The Location of Cytochromes in Escherichia coli

Discussion

The Origin ofthe Respiratory Granules of Bacteria

On the Cytochromes of Anaerobically Cultured Yeast

Discussion

The Lactate Dehydrogenase of Yeast

Components of the Respiratory Chain in Yeast Mitochondria

On the 'Haemoglobin' Absorption Bands of Yeast

Irreversible Inhibition of Catalase by the 3-Amino-1:2:4-Triazole Group of Inhibitors in the Presence of Catalase Donors

Catalase Oxidation Mechanisms

Discussion

Oxidation States of Haemoproteins

Peroxide Compounds of Catalase and Peroxidase

The Nature of Catalase-Peroxide Complex I

Studies on Problems of Cytochrome c Oxidase Assay

Discussion

Assay of Cytochrome c Oxidase

Inhibition of Cytochrome c Oxidase by Cytochrome c

Interaction of Cytochrome c with Other Compounds

The Effect of Cations on the Reactivity of Cytochrome c in Heart Muscle Preparations

Composition of Cytochrome c Oxidase

Discussion

Function of Copper in Cytochrome Oxidase Preparations

Cytochrome Oxidases of Pseudomonas aeruginosa and Ox-Heart Muscle and their Related Respiratory Components

Discussion

Properties and Nomenclature of Cytochromes a and a3

The Prosthetic Groups of Pseudomonas Cytochrome Oxidase

The Reaction of Cytochrome c Oxidase with Oxygen

The Oxygen-Reducing Equivalents of Cytochromes a and a3

The Isolation, Purification and Properties of Haemin a

Discussion

Model Systems for Cytochrome Oxidase

Absorption Spectra of Ferro- and Ferri-Compounds of Haem a

Cryptohaem a

Mitochrome in Relation to Cryptohaem a

Cytochrome Oxidase Components

The Structure of Porphyrin a, Cryptoporphyrin a and Chlorin a2

Discussion

The Structure of Haem a and Haem a2

The Structure of Porphyrin a

The Properties of Haem a2 and Cytochrome a2

Extractability of Ferro- and Ferricytochrome c

A Haemopeptide from a Tryptic Hydrolysate of Rhodospirillum rubrum Cytochrome c

Electrometric and Other Studies on Cytochromes of the C-Group

Discussion

Protein Configuration and Linkage to the Prosthetic Group in Cytochrome c

Studies of the Haemochrome-fonning Groups in Cytochrome c

The Amino Acid Sequence in Horse Heart Cytochrome c

Comments on the Structure of Cytochrome c

Structure and General Properties of Cytochrome c

Comparative Properties of Cytochrome c from Yeast and Heart Muscle

Properties of Native Cytochrome c

Reactivity of Native Cytochrome c in Oxidative Phosphorylation

Structure of Bacterial Cytochromes of c-Type

Structure and Redox Potentials of Cytochrome c

The Electron Transfer from Cytochromes to Terminal Electron Acceptors in Nitrate Respiration and Sulphate Respiration

Cytochrome C3

Discussion

Nature and Properties of Cytochrome c3

Functional Aspects of Cytochrome c3

Evolutionary Aspects of the Sulphate-Reducing Bacteria and of Cytochrome c3

The Atypical Haemoprotein of Purple Photosynthetic Bacteria

Discussion

The Functions of Cytochrome b4 and of Cytochrome c544 (Halotolerant Coccus)

Nomenclature of CO-Binding Pigments

Cytochrome o

On the Oxidase Function of RHP

Spectrophotometric Studies of Cytochromes Cooled in Liquid Nitrogen

Discussion

'Trapped' Steady-States

Low-Temperature Absorption Spectra of Cytochromes in Relation to Structure

Studies on Microsomal Cytochromes and Related Substances

Discussion

On the Nature of Cytoplasmic Pigments of Liver Cells

Possible Functions of the Cytochromes of the Endoplasmic Reticulum of Animal Cells

The Significance of E0 Values of Cytochromes in Relation to Cellular Function

The Cytochromes of Plant Tissues

Discussion

Cytochromes c1 and b3 of Particulate Components of Plants

The Cytochromes of Roots

The Chemical and Enzymic Properties of Cytochrome b2 of Bakers' Yeast

Conditions for the Autoxidation of Flavocytochrome b2

Kinetic Studies on the Action of Yeast Lactate Dehydrogenase

Various Forms of Yeast Lactate Dehydrogenase

Studies on Bakers' Yeast Lactate Dehydrogenase

Discussion

The Problem of Cytochrome b2

Properties of Intact and Modified Cytochrome b2

Nature of Bakers' Yeast Lactate Dehydrogenase

Nomenclature of Cytochrome b2 and Derived Proteins

The Substrate Specificity of Cytochrome b2

On the Cytochrome b Components in the Respiratory Chain in Yeast

The Kinetics of Reactions Catalysed by Cytochrome b2

The Kinetics of Reduction of Cytochrome b2

The Absorption Spectrum in Relation to the Structure of Cytochrome b2

The Contribution of the Prosthetic Groups to the Absorption Spectrum of Cytochrome b2

The Oxidation-Reduction Changes in the Reaction of Lactate with Cytochrome b2

The Function and Bonding of the Flavin Group of Cytochrome b2

The Bonding Between the Flavin Group and Apoprotein of Cytochrome b2

Possible Free Radical Formation in Flavoproteins

Autoxidation of Cytochrome b2

The Role of Cytochrome b in the Respiratory Chain

Discussion

The Cross-Over Theorem and Sites of Oxidative Phosphorylation

The Oxidation-Reduction Potential of Cytochrome b

On the Redox Potential of Cytochrome b, the Kinetics of Reduction of Cytochrome b and the Existence of Slater's Factor

The Influence of Cyanide on the Reactivity of Cytochrome b

Energy Transfer and Conservation in the Respiratory Chain

Discussion

Mechanism of Oxidative Phosphorylation

The Significance of Respiratory Chain Oxidations in Relation to Metabolic Pathways in the Cell

Discussion

On 'Additional DPN' of Incubated Mitochondria

Possible Structure of Complexes of DPN or of DPNH Involved in Oxidative Phosphorylation

Author Index

Subject Index

Details

No. of pages:
384
Language:
English
Copyright:
© Pergamon 1961
Published:
Imprint:
Pergamon
eBook ISBN:
9781483221496

About the Editor

J. E. Falk

R. Lemberg

R. K. Morton