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결과 내 검색
동의어 포함
Title Page
ABSTRACT
Contents
1. Introduction 9
1.1. Disease diagnosis 9
1.2. Conventional detection methods of nucleic acid and amino acid 10
1.3. Cell-free protein synthesis 10
1.4. Retroreflection 11
1.5. Aim of the study 12
2. Materials and methods 15
2.1. Plasmids construction 15
2.2. Expression and purification of proteins 15
2.2.1. Universal reporter proteins 15
2.2.2. GST-TAD(P27L) 15
2.2.3. SpyTag003-Z domain-AzF 16
2.3. MST assay 16
2.4. Construction of cell-free protein synthesis systems 17
2.5. Reaction mixture of cell-free translation synthesis 17
2.6. Reaction mixture of Target-assisted synthesis of reporters (TASR) 18
2.6.1. Construction of sensor DNA 18
2.6.2. Annealing of target DNA and sensor DNA 18
2.6.3. Target-assisted synthesis of reporters (TASR) 19
2.7. Reaction mixture of amino acids detection 19
2.8. Conjugation methods 20
2.8.1. Conjugation of SpyTag003-Z domain-AzF / SpyTag003-azide to silica surface of RJPs using branched linker 20
2.8.2. Conjugation of GST-TAD(P27L) to glass surface using BS3 20
2.8.3. Conjugation of azide-PMIN8A to the glass surface using DBCO-sulfo NHS ester 21
2.8.4. Conjugation of azide-PMIN8A to glass surface using branched linker 21
2.9. Procedure of retroreflective sensing of the reporter protein after cell-free protein synthesis 22
2.10. Stability test of SpyTag003-conjugated RJPs 22
3. Results and discussion 23
3.1. Design of universal reporter protein 23
3.1.1. MDM2-TAD(P27L) pair 23
3.1.2. MDM2-PMI(N8A) pair 24
3.1.3. SpyCatcher/SpyTag system (003 version) 24
3.1.4. Improved universal reporter protein 25
3.1.5. Universal reporter protein functional analysis 28
3.2. Partner peptides conjugation strategy on RJPs and sensing chip surfaces 30
3.3. Pair determination through retroreflective sensing 33
3.4. Universal reporter protein detection through retroreflection after cell-free expression 38
3.5. Optimizations for time in the signal measurement process 38
3.6. Universal reporter protein expression and retroreflective sensing through target DNA recognition 42
3.7. Sensing strategy for amino acids detection 44
3.8. Engineering of universal reporter proteins to increase expression level 46
4. Conclusions 48
5. References 49
6. Abstract in Korean 52
Figure 1. Scheme of detecting various targets through retroreflection combined with a cell-free translation system. 14
Figure 2. Construction of universal reporter protein 26
Figure 3. Two versions of universal reporter protein. 27
Figure 4. Interactions between each pair of universal reporter protein. 29
Figure 5. Conjugation methods for RJPs. 31
Figure 6. Conjugation methods for sensing chip. 32
Figure 7. Retroreflective sensing results according to the presence or absence of universal reporter protein. 35
Figure 8. Conjugation strategy of PMI(N8A) to sensing chip. 36
Figure 9. Retroreflective sensing results according to concentrations of purified universal reporter proteins. 37
Figure 10. Retroreflective sensing strategy through cell-free protein synthesis. 40
Figure 11. Standard curve and optimization of the signal measurement process. 41
Figure 12. Universal reporter protein expression and retroreflective sensing strategy through target recognition. 43
Figure 13. Detection strategy of Amino acids using cell free translational system with retroreflection. 45
Figure 14. Expression test of engineered reporter proteins. 47
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