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| DC 欄位 | 值 | 語言 |
|---|---|---|
| dc.contributor.advisor | 張英? | |
| dc.contributor.author | Ching-Huang Lin | en |
| dc.contributor.author | 林靖凰 | zh_TW |
| dc.date.accessioned | 2021-06-13T02:34:33Z | - |
| dc.date.available | 2011-08-05 | |
| dc.date.copyright | 2011-08-05 | |
| dc.date.issued | 2011 | |
| dc.date.submitted | 2011-08-01 | |
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| dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/31185 | - |
| dc.description.abstract | Receptor for Activated C-Kinase 1 (RACK1)是一個分子量為36 kDa的鷹架蛋白,普遍存在於動物和植物中,RACK1的蛋白質結構是由七個平板螺旋 (seven-bladed propeller) 所組成,其中包含七個色胺基酸和天冬胺酸 (tryptophan-aspartic acid-domain;WD40) 的重複區域,而這些重複的區域 (domain) 也是與其他蛋白發生交互作用的地方。在阿拉伯芥中,有三個基因可以轉譯出RACK1蛋白,分別命名為RACK1A (At1g18080), RACK1B (At1g48630) 和RACK1C (At3g18130)。阿拉伯芥中的RACK1蛋白會參與在賀爾蒙反應和植物生長發育的過程中,且會與40S核醣體發生交互作用。目前,RACK1被視為一多功能性的鷹架蛋白,在不同的訊息傳遞途徑中扮演重要的角色。此外,RACK1在離層酸 (abscisic acid; ABA) 反應中扮演一個負向調控的角色,而rack1a突變株對於水分逆境具有抗性。然而,RACK1A究竟是與哪些蛋白質發生交互作用,共同參與或調控這些訊息傳遞的過程,都是尚未清楚的部分。前人研究以14-3-3抗體進行免疫沉澱 (immunoprecipitation) 的實驗,發現到RACK1A的存在。於是,我們想要再進一步去確認14-3-3蛋白與RACK1A蛋白之間的交互作用。由酵母菌雙雜合系統和雙分子螢光互補實驗得知,14-3-3蛋白與RACK1A蛋白之間沒有直接的交互作用。此外,觀察阿拉伯芥RACK1A在原生質體細胞內主要分布在細胞質,C端某絲胺酸定點突變導致RACK1A分布集中在核中。本研究並利用RACK1A大量表現植株,試著將RACK1A及其結合蛋白利用免疫沉澱方式純化出來。 | zh_TW |
| dc.description.abstract | Receptor for Activated C-Kinase 1 (RACK1) is a 36-kDa scaffold protein, which contains seven Trp-Asp 40 (WD40) repeats. RACK1 is highly conserved protein in both animals and plants. The WD40 repeats are involved in protein-protein interactions. There are three RACK1 genes in Arabidopsis thaliana, namely RACK1A (At1g18080), RACK1B (At1g48630) and RACK1C (At3g18130). RACK1 is involved in multiple hormone responses, developmental processes, and associated with 40S ribosomes in Arabidopsis. Notably, RACK1 is regarded as a versatile scaffold protein which serves as a nexus for multiple signal transduction pathways. Moreover, RACK1 plays a negative regulator under abscisic acid (ABA) responses, and rack1a mutants are more resistant to water stress. However, the specific interactions between RACK1 and its binding partners are still unclear. Previous immunopreciptation studies revealed that RACK1A may interact with 14-3-3. Here, we used yeast two-hybrid and bimolecular fluorescence complementation to study the interactions between these two proteins. Our results indicated that RACK1A did not interact with 14-3-3 omega directly. Furthermore, we observed that the RACK1A protein is localized to the cytoplasm in Arabidopsis protoplasts. Point mutation of a serine residue located in the C-terminue resulted in subcellular localization change. We use RACK1A overexpression lines to the possibility to identify RACK1A interacting proteins by immunoprecipitation. | en |
| dc.description.provenance | Made available in DSpace on 2021-06-13T02:34:33Z (GMT). No. of bitstreams: 1 ntu-100-R97b42029-1.pdf: 959375 bytes, checksum: 8687d79a78bf91df953d5aa434548bae (MD5) Previous issue date: 2011 | en |
| dc.description.tableofcontents | 目錄
中文摘要 V Abstract VI 縮寫對照表 VII 第一章 前言 1 一、RACK1 (Receptor for Activated C-Kinase 1) 蛋白 1 1. RACK1的起源 1 2. RACK1的蛋白結構 1 3. RACK1的生理功能 2 二、14-3-3蛋白 3 三、RACK1蛋白與14-3-3蛋白的關係 4 四、研究目標 4 第二章 材料與方法 5 一、實驗材料 5 1. 質粒 (plasmid) 5 2. 菌株 5 二、實驗方法 5 1. 大腸桿菌勝任細胞 (competent cell) 之製備 5 2. 少量質粒DNA之抽取 6 3. DNA洋菜膠體電泳 7 4. 細菌轉型作用 (tansformation) 7 5. 榖胱甘肽硫轉移酶 (glutathione-S-transferase ; GST) 重組蛋白之純化 7 6. 蛋白質定量 8 7. 變性聚丙烯胺膠體電泳 (SDS-PAGE) 9 8. 西方墨點法 (western blot) 10 9. 阿拉伯芥原生質體 (protoplast) 的分離和質粒轉殖 10 10. 酵母菌雙雜合系統 (yeast two-hybrid system) 11 11. 重組蛋白之定點突變 (site-directed mutagenesis) 13 12. 試管內蛋白質磷酸化之激酶反應 (in vitro kinase assay) 14 13. 免疫沉澱 (immunoprecipitation) 14 14. 植物全蛋白之抽取及免疫沉澱方法 15 第三章 結果 16 一、以酵母菌雙雜合系統分析阿拉伯芥RACK1A與14-3-3 omega之分子間交互作用 16 二、阿拉伯芥RACK1A受激酶磷酸化之分析 17 三、以雙分子螢光互補系統 (BiFC) 分析阿拉伯芥RACK1A和14-3-3 omega之交互作用 18 四、觀察阿拉伯芥RACK1A在阿拉伯芥原生質體細胞內的分布 18 五、阿拉伯芥RACK1A大量表現株中HF-RAK1A的表現量 19 六、以GST-RACK1A融合蛋白進行免疫沉澱 19 七、以阿拉伯芥RACK1A大量表現的轉殖株進行免疫沉澱 19 第四章 討論 21 參考文獻 23 附錄 35 圖表目錄 圖一、RACK1A蛋白質序列及預期會與14-3-3蛋白發生交互作用的磷酸化位點 26 圖二、以酵母菌雙雜合系統分析阿拉伯芥14-3-3 omega和RACK1A之交互作用 27 圖三、GST-RACK1A重組蛋白 (fusion protein) 純化後的品質和濃度檢測 28 圖四、阿拉伯芥RACK1A分別與AtCDPK1、AtCDPK16和AtCRK3進行激酶活性分析 29 圖五、以雙分子螢光互補系統 (BiFC) 分析阿拉伯芥14-3-3 omega蛋白和RACK1A蛋白之交互作用 30 圖六、觀察YFP-RACK1A和YFP-RACK1A-S286A在阿拉伯芥原生質體中細胞內的位置 31 圖七、以西方墨點法分析阿拉伯芥RACK1A大量表現株中的RACK1A蛋白的表現量 32 圖八、利用GST-RACK1A重組蛋白進行免疫沉澱 (immunoprecipitation) 分析 33 圖九、以anti-RACK1 antibody進行免疫沉澱 (immunoprecipitation) 分析 34 | |
| dc.language.iso | zh-TW | |
| dc.subject | WD40 | zh_TW |
| dc.subject | Receptor for Activated C-Kinase 1 | zh_TW |
| dc.subject | 鷹架蛋白 | zh_TW |
| dc.subject | 蛋白質交互作用 | zh_TW |
| dc.subject | rack1a 突變株 | zh_TW |
| dc.subject | 14-3-3 | zh_TW |
| dc.subject | 免疫沉澱 | zh_TW |
| dc.subject | WD40 repeat | en |
| dc.subject | 14-3-3 | en |
| dc.subject | rack1a mutant | en |
| dc.subject | Receptor for Activated C-Kinase 1 | en |
| dc.subject | scaffold protein | en |
| dc.subject | protein-protein interactions | en |
| dc.subject | immunoprecipitation | en |
| dc.title | 阿拉伯芥RACK1A是否會與14-3-3蛋白有分子上的交互作用? | zh_TW |
| dc.title | Dose RACK1A have protein-protein interaction with 14-3-3 protein in Arabidopsis thaliana? | en |
| dc.type | Thesis | |
| dc.date.schoolyear | 99-2 | |
| dc.description.degree | 碩士 | |
| dc.contributor.oralexamcommittee | 林讚標,謝旭亮,謝明勳 | |
| dc.subject.keyword | Receptor for Activated C-Kinase 1,鷹架蛋白,WD40,蛋白質交互作用,rack1a 突變株,14-3-3,免疫沉澱, | zh_TW |
| dc.subject.keyword | Receptor for Activated C-Kinase 1,scaffold protein,WD40 repeat,protein-protein interactions,rack1a mutant,14-3-3,immunoprecipitation, | en |
| dc.relation.page | 42 | |
| dc.rights.note | 有償授權 | |
| dc.date.accepted | 2011-08-01 | |
| dc.contributor.author-college | 生命科學院 | zh_TW |
| dc.contributor.author-dept | 植物科學研究所 | zh_TW |
| 顯示於系所單位: | 植物科學研究所 | |
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