| 5 | 1/1 | 返回列表 |
| 查看: 3085 | 回復(fù): 12 | ||||
| 當(dāng)前只顯示滿足指定條件的回帖,點(diǎn)擊這里查看本話題的所有回帖 | ||||
[交流]
SDS-PAGE樣品濃縮的方法
|
||||
SDS-PAGE樣品需要濃縮大家用的是什么試劑(例如:TCA)?具體步驟?![]() [ Last edited by chunqizzm on 2012-3-25 at 23:36 ] |
蛋白質(zhì)實(shí)驗(yàn)技術(shù) |
» 搶金幣啦!回帖就可以得到:
+1/979
+1/489
+1/274
+1/179
+2/130
+1/60
+1/54
+1/39
+1/38
+1/37
+1/36
+1/17
+1/9
+1/9
+1/7
+2/6
+1/5
+1/4
+1/3
+1/2
金蟲 (小有名氣)
|
這是我一直用的TCA方法 Normal TCA To eliminate TCA soluble interferences and protein concentration 1) To a sample of protein solution add Trichloroacetic acid (TCA) 100% to get 13% final concentration. Mix and keep 5min –20C and then 15min 4C; or longer time at 4C without the –20C step for lower protein concentration. Suggestion: leave ON if the protein concentration is very low. 1) (preparation of 100% TCA: 454ml H2O/kg TCA. Maintain in dark bottle at 4C.Be careful, use gloves!!!). 2) Spin 15min 4C in microfuge at maximum speed (15000g). Carefully discharge supernatant and retain the pellet: dry tube by inversion on tissue paper (pellet may be difficult to see). 3) For PAGE-SDS, resuspend samples in a minimal volume of sample buffer. (The presence of some TCA can give a yellow color as a consequence of the acidification of the sample buffer ; titrate with 1N NaOH or 1M TrisHCl pH8.5 to obtain the normal blue sample buffer color.) |
| 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)劑求助 +4 | 想換手機(jī)不想解?/a> 2026-04-02 | 4/200 |
|
|---|---|---|---|---|
|
[考研] 346求調(diào)劑 +5 | 鄭誠(chéng)樂 2026-04-02 | 5/250 |
|
|
[考研] 一志愿山東大學(xué),085600,344 +3 | 魏子per 2026-04-02 | 4/200 |
|
|
[考研] 求調(diào)劑推薦 +3 | 南山南@ 2026-04-01 | 3/150 |
|
|
[考研] 348求調(diào)劑 +6 | 小懶蟲不懶了 2026-03-27 | 7/350 |
|
|
[考研] 【求調(diào)劑】新能源材料本科,一志愿211,初試321 +6 | 求調(diào)劑學(xué)校, 2026-04-02 | 6/300 |
|
|
[考研] 英一數(shù)一408,總分284,二戰(zhàn)真誠(chéng)求調(diào)劑 +12 | 12.27 2026-03-30 | 14/700 |
|
|
[考研] 0856,269分求調(diào)劑 +8 | 有學(xué)上就行求求?/a> 2026-03-30 | 11/550 |
|
|
[考研] 307分求調(diào)劑 +14 | (o~o) 2026-03-31 | 15/750 |
|
|
[考研] 建環(huán),能源,土木老師路過看一看。。 +4 | 嘿嘿uu 2026-04-01 | 4/200 |
|
|
[考研] 材料科學(xué)與工程339求調(diào)劑 +11 | hyz0119 2026-03-31 | 12/600 |
|
|
[考研] 283求調(diào)劑 +9 | A child 2026-03-28 | 9/450 |
|
|
[考研] 326求調(diào)劑 +4 | 崽崽仔 2026-03-31 | 4/200 |
|
|
[考研] 一志愿北京科技大學(xué)085601材料工程英一數(shù)二初試總分335求調(diào)劑 +5 | 雙馬尾痞老板2 2026-03-31 | 5/250 |
|
|
[考研] 考研調(diào)劑 +9 | 小蠟新筆 2026-03-29 | 10/500 |
|
|
[考研] 254材料與化工求調(diào)劑 +3 | 翰冬林楠 2026-03-30 | 4/200 |
|
|
[考研] 08工科求調(diào)劑286 +5 | tgs_001 2026-03-28 | 5/250 |
|
|
[考研] 085601一志愿西北工業(yè)大學(xué)初試346 +4 | 085601初試346 2026-03-30 | 4/200 |
|
|
[考研] 085602化工求調(diào)劑(331分) +8 | 111@127 2026-03-30 | 8/400 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +6 | 崔wj 2026-03-26 | 6/300 |
|