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两种(超)耐热型甘露醇脱氢酶的鉴定及其在D-甘露醇生产中的应用

ACKNOWLEDGEMENTS第5-10页
List of abbreviations第10-16页
Abstract第16-17页
摘要第18-20页
CHAPTER ONE GENERAL INTRODUCTION AND REVIEW RELEVANT LITERATURE第20-53页
    1.1. General introduction第20-21页
    1.2. Review relevant literature第21-42页
        1.2.1. D-mannitol production第21-23页
        1.2.2. Chemical structure and properties of D- mannitol第23-25页
        1.2.3. Natural occurance of D-mannitol第25-26页
        1.2.4. D-mannitol application第26页
        1.2.5. Enzymatic production of D-mannitol第26-28页
        1.2.6. Chemical routes of D-mannitol production第28-30页
        1.2.7. Role of D-mannitol dehydrogenase第30页
        1.2.8. Possible rules of thermostable Mt DH on D-mannitol production pathway第30-31页
        1.2.9. Biochemical parameters affecting D-mannitol production from 12 hyperthermophilic第31-36页
            1.2.9.1. pH第32页
            1.2.9.2. Thermodynamic第32-33页
            1.2.9.3. Kinetic parameter第33-34页
            1.2.9.4. Metal effect and depletion第34-35页
            1.2.9.5. Co-factor and substrate specificity第35-36页
        1.2.10. Sequence similarity and identity第36页
        1.2.11. Molecular modeling第36-37页
        1.2.12. Homology modeling第37-38页
        1.2.13. Model modification第38页
        1.2.14. Homology modeling steps第38-42页
            1.2.14.1. Template identification第39-40页
            1.2.14.2. Alignment第40页
            1.2.14.3. Modeling and refinement第40-41页
            1.2.14.4. Validation第41-42页
        1.2.15. Advantages and limitation of homology modeling第42页
    1.3. Importance of research topic第42-43页
    1.4. Objectives第43-44页
    1.5. References第44-53页
CHAPTER TWO CHARACTERIZATION OF THERMOSTABLE MANNITOL DEHYDROGENASE FROM HYPERTHERMOPHILIC THERMOTOGA NEAPOLITANA DSM WITH POTENTIAL APPLICATION IN D-MANNITOL PRODUCTION第53-73页
    2.1. Introduction第53-54页
    2.2. Material and methods第54-57页
        2.2.1. Chemicals and reagents第54页
        2.2.2. Gene cloning and expression第54-55页
        2.2.3. Purification of T. neapolitana Mt DH第55页
        2.2.4. Determination of molecular weight第55页
        2.2.5. T. neapolitana assay第55-56页
        2.2.6. Determination of optimal p H and optimal temperature第56页
        2.2.7. Effects of metal ions on enzyme activity第56页
        2.2.8. Substrate specificity第56页
        2.2.9. Kinetic analysis第56-57页
        2.2.10. Analytical methods第57页
        2.2.11. Sequence similarity第57页
    2.3. Results and discussion第57-68页
        2.3.1. Cloning, expression and purification of T. neapolitana Mt DH第57-60页
        2.3.2. Effects of p H, temperature and metal ions on T. neapolitana Mt DH第60-62页
        2.3.3. Effect of metal ions on T. neapolitana Mt DH第62-63页
        2.3.4. Kinetic analysis第63-64页
        2.3.5. Production of D-mannitol from D-fructose and T. neapolitana specificity第64-65页
        2.3.6. Sequence similarity第65-68页
    2.4. Conclusion第68-69页
    2.5. References第69-73页
CHAPTER THREE PURIFICATION AND CHARACTERIZATION OF THERMOSTABLE MANNITOL DEHYDROGENASE (MTDH) FROM CALDICELLULOSIRUPTOR 54 HYDROTHERMALIS第73-90页
    3.1. Introduction第73-74页
    3.2. Material and methods第74-77页
        3.2.1. Chemicals reagents, plasmids and bacteria第74页
        3.2.2. Gene cloning and expression of recombinant C. hydrothermalis Mt DH第74页
        3.2.3. Purification of C. hydrothermalis Mt DH第74-75页
        3.2.4. SDS-PAGE and molecular mass Determination第75页
        3.2.5. Assay of recombinant C. hydrothermalis Mt DH第75页
        3.2.6. The effects of temperature and p H on C. hydrothermalis Mt DH activity第75-76页
        3.2.7. Effect of metal ions on recombinant C. hydrothermalis Mt DH activity第76页
        3.2.8. Determination of kinetic parameters第76页
        3.2.9. Substrate specificity of recombinant C. hydrothermalis Mt DH第76页
        3.2.10. Analytical methods第76-77页
        3.2.11. 3D structure and sequence alignment of C. hydrothermalis Mt DH第77页
    3.3. Results and Discussion第77-87页
        3.3.1. Molecular weight determination of the recombinant C. hydrothermalis Mt DH第77-79页
        3.3.2. Effect of temperature and p H on C. hydrothermalis Mt DH第79-81页
        3.3.3. Effects of metal ions on the activity of C. hydrothermalis Mt DH第81-83页
        3.3.4. Kinetic parameter determination第83-84页
        3.3.5. 3D and sequence similarity第84-86页
        3.3.6. Substrate specificity第86页
        3.3.7. D-mannitol production第86-87页
    3.4. Conclusion第87页
    3.5. References第87-90页
CHAPTER FOUR MULTI-ENZYME CO-EXPRESSION PATHWAY FOR MANNITOL SYNTHESIS USING WHOLE RECOMBINANT ESCHERICHIA COLI CELLS.第90-102页
    4.1. Introduction第90-91页
    4.2. Material and methods第91-93页
        4.2.1. Plasmids and chemicals第91-92页
        4.2.2. Expression plasmid construction第92页
        4.2.3. Whole-cell biotransformation第92页
        4.2.4. Temperature, p H, and biomass optimization第92页
        4.2.5. Molecular weight determination第92-93页
        4.2.6. Optimization of D-mannitol yield from D-fructose第93页
        4.2.7. Analytical Methods第93页
    4.3. Results and discussion第93-99页
        4.3.1. Whole-cell biotransformation第93-95页
        4.3.2. Temperature, p H and biomass第95-97页
        4.3.3. Molecular weight determination第97页
        4.3.4. Optimization of fructose and mannitol第97-99页
    4.4. Conclusion第99页
    4.5. References第99-102页
CHAPTER FIVE MOLECULAR MODELING AND DOCKING OF MANNITOL DEHYDROGENASE ACTIVE SITE AND THE RESIDUES INVOLVED IN THE INTERACTION WITH D-MANNITOL第102-117页
    5.1. Introduction第102-103页
    5.2. Material and methods第103-105页
        5.2.1. Sequence similarity第103页
        5.2.2. Protein homology modeling and verification第103-104页
        5.2.3. Docking analysis第104页
        5.2.4. Three dimensional (3D) structure verification第104-105页
    5.3. Results and discussion第105-114页
        5.3.1. Sequence alignment第107页
        5.3.2. Molecular docking第107-114页
    5.4. Conclusion第114页
    5.5. References第114-117页
GENERAL CONCLUSION AND RECOMMENDATION第117-119页
    CONCLUSION第117-118页
    KEY INNOVATION OF THESIS第118-119页
RECOMMENDATIONS第119-120页
LIST OF PUBLICATIONS第120页

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