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大量
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| Catalog# | Size, concentration | Supplied with: | Certificate of Analysis | MSDS |
| 5X Reaction Buffer | ||||
| EN0321 | 10,000 u (100 u/µl) | 2 x 1.00 ml | EN0321 |
- Applications
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- 除去DNA片段中的单链突出末端(2)。
- S1转录图谱绘制(3, 4)。
- 发夹环结构切割。
- 在Exonuclease III协同作用下,制备定向缺失DNA片段(5)。
该酶还具有3’-磷酸单酯酶活性。 该酶是一种糖蛋白,糖类比例为18%。
酶活性分析混合物:30 mM sodium acetate (pH 4.5), 50 mM NaCl, 0.1 mM ZnCl2 , 5% (v/v) 甘油, 800 �μg/ml热变性的牛胸腺DNA。
20 mM Tris-HCl (pH 7.5), 50 mM NaCl, 0.1 mM ZnCl2 和50% (v/v)甘油。
- 抑制剂:金属螯合剂、PPi , Pi 、5’-核糖核苷酸和脱氧核糖核苷酸。
- 失活:加入EDTA,70°C加热10分钟。
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文献和实验S1 Nuclease Protection Mapping
The use of S1 nuclease to map the start site of a transcription unit is a well-established technique. Based on the method of Berk and Sharp (1 ), it has undergone many refinements over the years. S1 nuclease mapping requires a relatively
4. Vortex vigorously. 5. Incubate at 100 deg C for 3 minutes. 6. Transfer immediately to 58 deg C and incubate overnight. S1 digestion buffer (final concentration): 300 mM NaCl 30 mM sodium acetate, pH 5.5 2 mM zinc sulfate 1000 units/ml S1 nuclease
S1 Nuclease Analysis of Alternatively Spliced mRNA
-PCR and nuclease protection assays are the most frequently performed methods in the laboratory. Here, we describe the analysis of alternatively spliced RNA by using 5′ -end labelled DNA oligonucleotide probes and S1 nuclease. The method is sensitive, allowing
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