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人源E3连接酶MEX-3C Ring finger结构域结构和功能研究

Abstract第5-6页
Abbreviations第7-11页
Chapter one: Literature review第11-47页
    1. Introduction第12-47页
        1.1. Ubiquitination第12-15页
        1.2. MEX-3 is a novel family RNA-binding proteins第15-19页
        1.3. Human MEX-3C protein第19-25页
        1.4. The KH domain第25-28页
        1.5. Ring finger domain第28-32页
        1.6. Ring type E3 ligases第32-34页
        1.7. The function of the Ring finger domain第34-37页
        1.8. The Ring finger domain activates the E2-Ub conjugates第37-40页
        1.9. Dimerization of Ring finger domain第40-43页
        1.10. MEX-3C in human diseases第43-47页
Chapter Two: Structural and functional insights into the Ring finger domain of hMEX-3C第47-91页
    2.1. Introduction第48-49页
    2.2. Materials and methods第49-75页
        2.2.1. The Ring finger domain of human MEX-3C protein cloning construction第49-58页
            2.2.1.1. Molecular cloning and site-directed mutagenesis第49-51页
            2.2.1.2. Purpose restriction of DNA fragments第51-52页
            2.2.1.3. Preparation of the carrier第52-53页
            2.2.1.4. The destination segment is connected to the carrier第53-54页
            2.2.1.5. The transformation of recombinant plasmid第54-55页
            2.2.1.6. The preparation of the component cells第55-56页
            2.2.1.7. Mutant construction第56-58页
        2.2.2. Protein expression and purification第58-68页
            2.2.2.1. Expression of GST-hMEX-3C Ring finger domain第58页
            2.2.2.2. Extraction and purification第58-59页
            2.2.2.3. GST column affinity chromatography第59-61页
            2.2.2.4. SDS-PAGE experiment第61-63页
            2.2.2.5. Protein concentration第63-64页
            2.2.2.6. Gel filtration chromatography第64-66页
            2.2.2.7. The excision and purification of recombinant expressed protein tags第66-68页
        2.2.3. Crystallization, crystal data collection, and processing第68-69页
            2.2.3.1. Crystal growth第68-69页
            2.2.3.2. Crystal data collection and processing第69页
        2.2.4. Ubiquitylation assays第69-70页
        2.2.5. Western blot technique第70-73页
        2.2.6. Assay of chelation experiment第73页
        2.2.7. Circular Dichroism (CD) spectrometry第73-75页
    2.3. Results第75-87页
        2.3.1. Expression and purification of the hMEX-3C Ring finger domain第75-76页
        2.3.2. Sequence and structural analysis of the hMEX-3C Ring finger domain第76-80页
        2.3.3. The Ring finger domain of hMEX-3Cnmediates autoubiquitination assays第80-82页
        2.3.4. Structural superimposition and ubiquitination assays identified the key residuesinvolved in the interaction with E2-Ub第82-86页
        2.3.5. A role for zinc ions (Zn~(2+)) in the ubiquitination assay of the hMEX-3C Ring fingerdomin第86-87页
    2.4. Summary and Discussion第87-91页
References第91-115页
Acknowledgements第115-117页
Academic papers published during PhD period第117页

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