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新型核糖醇脱氢酶的克隆表达、性质及其合成阿洛糖醇的应用研究

Acknowledgements第5-11页
LIST OF ABBREVIATIONS第11-18页
Abstract第18-20页
摘要第21-23页
CHAPTER ONE GENERAL INTRODUCTION AND LITERATURE REVIEW第23-50页
    1.1. General introduction第23-24页
    1.2. Literature review第24-39页
        1.2.1. Allitol第24-33页
            1.2.1.1. Sources of allitol第24页
            1.2.1.2. Properties of allitol第24-25页
            1.2.1.3. Chemical synthesis of allitol第25-26页
            1.2.1.4. Physiological effects of allitol第26页
            1.2.1.5. Application of allitol第26-27页
            1.2.1.6. Toxicity of allitol第27页
            1.2.1.7. Bioproduction strategies for rare hexose sugars (Izumoring)第27-29页
            1.2.1.8. Microbial synthesis of allitol第29页
            1.2.1.9. Enzymatic synthesis of allitol第29-30页
            1.2.1.10. Sources of RDHs第30-31页
            1.2.1.11. RDHs sequences and structures第31-33页
        1.2.2. Formate dehydrogenase (FDH)第33-34页
        1.2.3. Molecular modeling第34-39页
            1.2.3.1. Homology modeling第35-36页
            1.2.3.2. Steps in homology modelling第36-39页
    1.3. Significant of research topic第39页
    1.4. Objectives第39-40页
    1.5. References第40-50页
CHAPTER TWO IDENTIFICATION OF PROVIDENCIA ALCALIFACIENS RIBITOL DEHYDROGENASE(EXPRESSION, PURIFICATION AND MOLECULAR MASS DETERMINATION)第50-63页
    2.1. Introduction第50-51页
    2.2. Materials and methods第51-54页
        2.2.1. Materials and regents第51页
        2.2.2. Experimental instruments and equipment第51页
        2.2.3. Plasmids, Microorganisms, and Culture Conditions第51-52页
        2.2.4. Gene cloning and expression第52页
        2.2.5. Qualification and quantification of target DNA第52页
        2.2.6. Purification of recombinant P. alcalifaciens RDH第52-53页
        2.2.7. Determination of molecular mass第53页
        2.2.8. Sequence searching and parameter calculation第53-54页
    2.3. Results and discussion第54-61页
        2.3.1. Identification of the RDH gene from P. alcalifaciens第54-56页
        2.3.2. Calculated sequence parameters第56页
        2.3.3. Cloning, expression and purification of recombinant P. alcalifaciens RDH第56-59页
        2.3.4. Determination of molecular mass第59-61页
    2.4. Conclusion第61页
    2.5. References第61-63页
CHAPTER THREE CHARACTERIZATION OF A NEW RIBITOL DEHYDROGENASE FROM PROVIDENCIAALCALIFACIENS RIMD 1656011第63-76页
    3.1. Introduction第63-64页
    3.2. Materials and methods第64-65页
        3.2.1. Materials and regents第64页
        3.2.2. Experimental instruments and equipment第64页
        3.2.3. Assay of recombinant P. alcalifaciens RDH第64页
        3.2.4. Effect of temperature and pH on recombinant P. alcalifaciens RDH activity第64-65页
        3.2.5. Effect of metal ions on recombinant P. alcalifaciens RDH activity第65页
        3.2.6. Determination of kinetic parameters第65页
        3.2.7. Substrate specificity of recombinant P. alcalifaciens RDH第65页
    3.3. Results and discussion第65-73页
        3.3.1. Effect of pH on recombinant P. alcalifaciens RDH第65-66页
        3.3.2. Effect of temperature on recombinant P. alcalifaciens RDH第66-67页
        3.3.3. Effect of metal ions on recombinant P. alcalifaciens RDH第67-69页
        3.3.4. P. alcalifaciens RDH assay第69-70页
        3.3.5. Substrate specificity of recombinant P. alcalifaciens RDH第70-72页
        3.3.6. Determination of kinetic parameters第72-73页
    3.4. Conclusion第73页
    3.5. Reference第73-76页
CHAPTER FOUR SYNTHESIS OF ALLITOL FROM D-PSICOSE USING COUPLE ENZYME REACTIONUSING RIBITOL DEHYDROGENASE AND FORMATE DEHYDROGENASE第76-96页
    4.1. Introduction第76-77页
    4.2. Materials and methods第77-80页
        4.2.1. Chemicals and plasmids第77-78页
        4.2.2. Experimental instruments and equipment第78页
        4.2.3. RDH and FDH assays第78-79页
        4.2.4. Optimisation of temperature and pH for allitol production第79页
        4.2.5. Optimisation of shaking velocity and shaking type for allitol production第79页
        4.2.6. Allitol production第79页
        4.2.7. HPLC第79页
        4.2.8. Allitol purification第79-80页
        4.2.9. NMR and IR spectroscopy第80页
        4.2.10. LC-MS analysis第80页
        4.2.11. Differential Scanning Calorimetry (DSC)第80页
        4.2.12. Statistical analysis第80页
    4.3. Results and discussion第80-93页
        4.3.1. Effect of pH第82页
        4.3.2. Effect of temperature第82-83页
        4.3.3. Effect of shaking type第83-84页
        4.3.4. Effect of shaking velocity第84-85页
        4.3.5. Reduction of D-psicose to allitol under optimal conditions第85-87页
        4.3.6. Separation of allitol product第87-88页
        4.3.7. LC-Ms第88-89页
        4.3.8. Structural characterization of allitol product第89-91页
        4.3.9. Infrared (IR) spectrometry第91-92页
        4.3.10. DSC analysis第92-93页
    4.4. Conclusion第93页
    4.5. References第93-96页
CHAPTER FIVE MOLECULAR MODELING AND DOCKING OF RIBITOL DEHYDROGENASE ANDFORMATE DEHYDROGENASE第96-120页
    5.1 Introduction第96-97页
    5.2 Materials and methods第97-99页
        5.2.1. Sequence similarity第97-98页
        5.2.2. Experimental Software and Hardware第98页
        5.2.3. Protein homology modeling第98-99页
        5.2.4. Three dimensional (3D) structure verification第99页
        5.2.5. Docking analysis第99页
    5.3 Results and discussion第99-115页
        5.3.1. RDH Homology modeling第99-108页
        5.3.2. FDH homology modeling第108-115页
    5.4. Conclusion第115页
    5.5. References第115-120页
CHAPTER SIX ENGINEERED CELL FOR ALLITOL SYNTHESIS FROM D-PSICOSE PATHWAY BYMULTI?ENZYME (RDH & FDH) COEXPRESSION IN ESCHERICHIA COLI第120-132页
    6.1. Introduction第120-121页
    6.2. Materials and methods第121-124页
        6.2.1. Experimental instruments and equipment第121-122页
        6.2.2. Plasmids and strains第122页
        6.2.3. Media and culture conditions第122页
        6.2.4. Construction of expression plasmid第122-123页
        6.2.5. Detection and determination of heterologous proteins第123页
        6.2.6. Optimization of temperature and pH for Whole-cell biotransformation第123页
        6.2.7. Allitol production using whole-cell biotransformation第123页
        6.2.8. Quantification of D-psicose and allitol第123-124页
    6.3. Results and discussion第124-130页
    6.4. Conclusions第130页
    6.5. References第130-132页
GENERAL CONCLUSION AND RECOMMENDATION第132-135页
    Conclusion第132-133页
    Key innovation of thesis第133-134页
    RECOMMENDATIONS第134-135页
LIST OF PUBLICATIONS第135页

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