| 5 | 1/1 | 返回列表 |
| 查看: 1312 | 回復(fù): 4 | ||||
| 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 | ||||
fyyzr木蟲 (小有名氣)
|
[求助]
求助:纖維素合成酶 酶活性測定方法,謝謝!
|
|||
| 求助,急需纖維素合成酶酶活性的測定方法,謝謝!第一次發(fā)帖,不對的地方見諒!謝謝! |
木蟲 (小有名氣)
專家顧問 (職業(yè)作家)
![]() |
專家經(jīng)驗(yàn): +426 |
|
纖維素合成酶活性測定比較困難,常見的方法如下 Cellulose synthase activity in membrane preparations of A. xylinum was determined according to the procedure of Lin and Brown (13). For enzyme assays, approximately 150 mg of membrane protein was incubated at 308C for 30 min in a reaction mixture with a final concentration of 20 mM UDP-[14C]glucose and 20 mM cyclic diguanylic acid (c-di-GMP) (gift from J. H. van Boom, Department of Organic Chemistry, Leiden, The Netherlands), and the radioactivity present in the alkali-insoluble product obtained after boiling was used to determine the cellulose synthase activity. Protein concentrations were determined by Peterson’s modification of the micro-Lowry method (19) with a protein assay kit (Sigma). 方法參考自 Identification of a second cellulose synthase gene (acsAII) in Acetobacter xylinum J. Bacteriol. 1995, 177(18):5276. 涉及到的其他文獻(xiàn)包括 13 Lin, F. C., and R. M. Brown, Jr. 1989. Purification of cellulose synthase from Acetobacter xylinum, p. 473–492. In C. Schuerch (ed.), Cellulose and wood— chemistry and technology. John Wiley and Sons, New York. 19 Peterson, G. L. 1977. A simplification of the protein assay method of Lowry et al. which is more generally applicable. Anal. Biochem. 83:346–356. |

專家顧問 (職業(yè)作家)
![]() |
專家經(jīng)驗(yàn): +426 |

| 最具人氣熱帖推薦 [查看全部] | 作者 | 回/看 | 最后發(fā)表 | |
|---|---|---|---|---|
|
[考研] 265求調(diào)劑 +8 | 小木蟲085600 2026-03-27 | 8/400 |
|
|---|---|---|---|---|
|
[考研] 295求調(diào)劑 +4 | 1428151015 2026-03-27 | 5/250 |
|
|
[考研] 07化學(xué)280分求調(diào)劑 +10 | 722865 2026-03-23 | 10/500 |
|
|
[考研] 307求調(diào)劑 +8 | 超級伊昂大王 2026-03-24 | 9/450 |
|
|
[考研] 274求調(diào)劑 +17 | 顧九笙要謙虛 2026-03-24 | 23/1150 |
|
|
[考研] 一志愿北化085600材料專碩275|有文章專利|求調(diào)劑 +3 | Micky11223 2026-03-25 | 3/150 |
|
|
[考研] 314求調(diào)劑 +3 | 溪云珂 2026-03-26 | 3/150 |
|
|
[考研] 081200-11408-276學(xué)碩求調(diào)劑 +4 | 崔wj 2026-03-26 | 4/200 |
|
|
[考研] 一志愿鄭州大學(xué),080500學(xué)碩,總分317分求調(diào)劑 +4 | 舉個栗子oi 2026-03-24 | 5/250 |
|
|
[考研] 333求調(diào)劑 +7 | 87639 2026-03-21 | 12/600 |
|
|
[考研] 求調(diào)劑 +5 | 蘆lty 2026-03-25 | 6/300 |
|
|
[考研] 中國科學(xué)院深圳先進(jìn)技術(shù)研究院-光纖傳感課題組招生-中國科學(xué)院大學(xué)、深圳理工大學(xué)聯(lián)培 +5 | YangTyu1 2026-03-26 | 5/250 |
|
|
[考研] 機(jī)械學(xué)碩310分,數(shù)一英一,一志愿211本科雙非找調(diào)劑信息 +3 | @357 2026-03-25 | 3/150 |
|
|
[考研] 一志愿北京化工大學(xué)材料與化工(085600)296求調(diào)劑 +9 | 稻妻小編 2026-03-26 | 9/450 |
|
|
[考研] 07化學(xué)303求調(diào)劑 +5 | 睿08 2026-03-25 | 5/250 |
|
|
[考研] 332求調(diào)劑 +6 | 032500 2026-03-25 | 6/300 |
|
|
[考研] 材料與化工304求B區(qū)調(diào)劑 +3 | 邱gl 2026-03-25 | 3/150 |
|
|
[考研] 340求調(diào)劑 +5 | 話梅糖111 2026-03-24 | 5/250 |
|
|
[考研] 材料專碩331求調(diào)劑 +4 | 鮮當(dāng)牛 2026-03-24 | 4/200 |
|
|
[考研] 一志愿國科過程所081700,274求調(diào)劑 +3 | 三水研0水立方 2026-03-23 | 3/150 |
|