| 查看: 3930 | 回復(fù): 11 | |||
[求助]
關(guān)于在表達(dá)蛋白和GFP蛋白之間的linker
|
| 各位好,我最近在做膜蛋白的表達(dá),在構(gòu)建載體的時(shí)候我在膜蛋白的C端還加了GFP指示蛋白,但是在誘導(dǎo)表達(dá)后,根本看不到菌發(fā)出綠色熒光,而我只表達(dá)GFP時(shí)卻能看到菌是綠色的,我在構(gòu)建載體的時(shí)把膜蛋白和GFP直接連在一起了,中間沒有加linker regions,我想問一下各位,我的菌株看不出綠色的原因是不是我沒有加一個(gè)linker的原因呢,如果有做過這方面的大俠是不是可以知道一下我呢,多謝各位! |
博士學(xué)習(xí) |
金蟲 (職業(yè)作家)
|
protein of interest surely weakens fluorescence of GFP with linker or without linker. i have ever made experiment about expression of fusion protein including GFP, the fusion protein including GFP can emit green fluorescence although its green fluorescence is weaker than that of control. but the fusion protein in my experiment is located at the cytoplasm, and your protein occured in the membrane, I don`t know whether location of protein including GFP effects fluorescence emission or not. |

金蟲 (職業(yè)作家)

榮譽(yù)版主 (知名作家)
|
You can't see the fluorescence if the GFP is not excitated. But, if your fusion protein is well expressed, you can see that the bacteria expressing the fusion protein is green, without excitation of GFP. If you purify the fusion protein, the solution containing the protein is also green, very lovely ![]() I've seen those with my own eyes. So, trust me ![]() [ Last edited by 西瓜 on 2011-6-6 at 22:48 ] |
榮譽(yù)版主 (知名作家)
銀蟲 (正式寫手)
木蟲 (正式寫手)
| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 調(diào)劑推薦 +7 | 清酒714 2026-03-26 | 8/400 |
|
|---|---|---|---|---|
|
[考研] 375求調(diào)劑 +7 | 雨夏整夜 2026-03-29 | 7/350 |
|
|
[考研] 284求調(diào)劑 +9 | 小熊~~ 2026-03-31 | 9/450 |
|
|
[考研] 311求調(diào)劑 +7 | 李芷新1 2026-03-31 | 7/350 |
|
|
[考研] 086000調(diào)劑 +5 | 7901117076 2026-03-26 | 5/250 |
|
|
[考研] 085601英二數(shù)二求調(diào)劑 總分325 +4 | 余航航 2026-03-31 | 4/200 |
|
|
[考研] 322求調(diào)劑:一志愿湖南大學(xué) 材料與化工(085600),已過六級。 +10 | XX小鄧 2026-03-29 | 10/500 |
|
|
[考研] 化學(xué)工程085602 305分求調(diào)劑 +28 | RichLi_ 2026-03-25 | 36/1800 |
|
|
[考研] 一志愿中海洋材料357 +4 | 麥恩莉. 2026-03-30 | 4/200 |
|
|
[考研] 本科211安全工程,初試290分,求調(diào)劑 +3 | 2719846834 2026-03-28 | 3/150 |
|
|
[考研] 調(diào)劑310 +13 | 溫柔的晚安 2026-03-25 | 14/700 |
|
|
[考研] 266分,求材料相關(guān)專業(yè)調(diào)劑 +10 | 哇呼哼呼哼 2026-03-30 | 12/600 |
|
|
[考研] 292求調(diào)劑 +13 | 是妍子也是研子 2026-03-30 | 13/650 |
|
|
[考研] 一志愿北京理工大學(xué)本科211材料工程294求調(diào)劑 +8 | mikasa的圍巾 2026-03-28 | 8/400 |
|
|
[考研] 343求調(diào)劑 +6 | 愛羈絆 2026-03-29 | 6/300 |
|
|
[考研]
|
18419759900 2026-03-25 | 8/400 |
|
|
[考研] 314求調(diào)劑 +3 | 溪云珂 2026-03-26 | 3/150 |
|
|
[考研] 324求調(diào)劑 +5 | hanamiko 2026-03-26 | 5/250 |
|
|
[考研] 化學(xué)調(diào)劑一志愿上海交通大學(xué)336分-本科上海211 +4 | 小魚愛有機(jī) 2026-03-25 | 4/200 |
|
|
[考研] 303求調(diào)劑 +6 | 藍(lán)山月 2026-03-25 | 6/300 |
|