上海金畔生物科技有限公司代理New England Biolabs(NEB)酶试剂全线产品,欢迎访问官网了解更多产品信息和订购。
产品信息
PURExpress 文献引用
重点
- 洁净的体系 – 排除了样本降解
- 使用方便 – 约两小时即可完成蛋白表达
- 分析简单 – 合成的蛋白经考马斯亮蓝染色在凝胶直观可见
- 产品类别:
- PURExpress,
- Cell-Free Protein Expression Products,
- Protein Expression Products
- 应用:
- PURExpress,
- Cell-Free Protein Expression,
- Protein Expression
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试剂盒组成
本产品提供以下试剂或组分:
NEB # 名称 组分货号 储存温度 数量 浓度 -
E3313S -80 Solution A (E3313) B0231AVIAL -80 1 x 0.1 ml 2.5 X Factor Mix (30 μl) P0762AVIAL -80 1 x 0.03 ml Not Applicable E. coli Ribosome P0763AVIAL -80 1 x 0.01 ml 13.3 µM PURExpress Control DHFR Plasmid N0424AVIAL -20 1 x 0.01 ml 125 ng/µl
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特性和用法
需要但不提供的材料
一般条件:37℃温育
标记:35S-甲硫氨酸(建议 > 1000 Ci/mmol,体外翻译级)
TCA 沉淀:TCA 溶液(25%、10%)、1 M NaOH、酪胺酸、乙醇、玻璃纤维过滤器、真空过滤歧管
SDS-PAGE:凝胶和电泳缓冲液、凝胶装置、电源、凝胶干燥器蛋白免疫印迹法:转移装置、膜、抗体和检测试剂
纯化:Ni-NTA 琼脂糖、Amicon Ultra- 0.5 ml、Ultracel- 100K 膜离心过滤器
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优势和特性
应用特性
- 快速合成用于蛋白质特性研究的分析量级别的样本
- 确认开放阅读框
- 检测突变对 ORF 的影响
- 合成具有活性和功能域的截短蛋白
- 掺入修饰的、非天然的或标记的氨基酸
- 绘制抗原表位图谱
- 毒性蛋白表达
- 核糖体展示
- 翻译和/或蛋白折叠研究
- 体外区域化
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相关产品
相关产品
- PURExpress® Δ (aa, tRNA) 试剂盒
- PURExpress® Δ RF123 试剂盒
- PURExpress® 体外蛋白合成试剂盒
- E. coli 核糖体
- PURExpress® 二硫键增强剂
- 小鼠 RNase 抑制剂
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注意事项
- 提供 125 ng/µl 的对照(DHFR)模板。使用 2 µl 模板进行阳性对照反应。在标准的 25 μl 反应体系中核糖体的量为 60 pmoles。提供的对照核糖体足够两次反应的用量。注意事项:可以使用较小剂量的核糖体,但蛋白产量可能会降低。如需更详细的产品使用信息,请参阅产品说明书。
- PURExpress 对照模板序列文件:Fasta、GenBank
- 贮存条件:试剂盒所有组份必须贮存于 -80℃。
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参考文献
- Gupta, P., K. Kannan, et al. (2013). Regulation of Gene Expression by Macrolide-Induced Ribosomal Frameshifting. Mol Cell. 52(5), 629-42. PubMedID: 24239289
- Tsai, A., J. Chen, et al. (2013). Observing Prokaryotic Translation Elongation in Real-Time using Single-Molecule Fluorescence. Biophysical Journal. 104(2, Supplement 1), 257a.
- Vazquez-Laslop, N., H. Ramu, et al. (2010). The key function of a conserved and modified rRNA residue in the ribosomal response to the nascent peptide. EMBO J. 29(18), 3108-3117. PubMedID: 20676057
- Vázquez-Laslop, N., H. Ramu, et al. (2011). Nascent peptide-mediated ribosome stalling promoted by antibiotics. Ribosomes. 377-392.
- Gupta, P., S. Sothiselvam, et al. (2013). Deregulation of translation due to post-transcriptional modification of rRNA explains why erm genes are inducible. Nat Commun . 4, 1984. PubMedID: 23749080
- Harvey, C. J., J. D. Puglisi, et al. (2012). Precursor directed biosynthesis of an orthogonally functional erythromycin analogue: selectivity in the ribosome macrolide binding pocket. J Am Chem Soc. 134(29), 12259-65. PubMedID: 22741553
- Kaiser, C. M., D. H. Goldman, et al. (2011). The ribosome modulates nascent protein folding. Science. 334(6063), 1723-7. PubMedID: 22194581
- Kannan, K., N. Vázquez-Laslop, et al. (2012). Selective Protein Synthesis by Ribosomes with a Drug-Obstructed Exit Tunnel. Cell. 151(3), 508-520. PubMedID: 23101624
- Kopaskie, K. S., K. G. Ligtenberg, et al. (2013). Translational regulation of Yersinia enterocolitica mRNA encoding a type III secretion substrate. Journal of Biological Chemistry. 288(49), 35478-88. PubMedID: 24158443
- Martínez, A. K., E. Gordon, et al. (2013). Interactions of the TnaC nascent peptide with rRNA in the exit tunnel enable the ribosome to respond to free tryptophan. Nucleic Acids Research. 42(2), 1245-56. PubMedID: 24137004
- Orelle, C., S. Carlson, et al. (2013). Tools for Characterizing Bacterial Protein Synthesis Inhibitors. Antimicrob Agents Chemother. 57(12), 5994-6004. PubMedID: 24041905
- Shi, W., X. Zhang, et al. (2011). Pyrazinamide inhibits trans-translation in Mycobacterium tuberculosis. Science. 333(6049), 1630-1632. PubMedID: 21835980
操作说明、说明书 & 用法
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操作说明
- Protein Synthesis Reaction using PURExpress (E3313)
- Analysis of Synthesized Protein using PURExpress (E3313)
- Determination of Protein Synthesis Yield with PURExpress (E3313, E6800, E6840, E6850)
- Purification of Synthesized Protein using Reverse His-tag Purification
- Measurement of 35S-Methionine Incorporation by TCA Precipitation and Yield Determination using PURExpress
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说明书
产品说明书包含产品使用的详细信息、产品配方和质控分析。- manualE6800_E3313_E6840_E6850
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应用实例
- Scaling down to scale up Miniaturizing cell free protein synthesis reactions with the Echo 525 Acoustic Liquid Handler
工具 & 资源
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选择指南
- Protein Expression and Purification Selection Chart
FAQs & 问题解决指南
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FAQs
- Where can I find many more detailed FAQs for PURExpress?
- How is the Δ Ribosome Kit E3313S different from the PURExpress E6800S kit?
- When using PURExpress, I was able to synthesize the target protein, but full-length product is not major species?
- When using PURExpress, I was unable to synthesize the control protein?
- When using PURExpress, I was able to synthesize the control protein, but the target sample is not present or present in low yield?
- Where can find all IMPACT FAQs?
- Are there PURExpress citations?
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实验技巧
- 在冰上融化试剂和建立反应体系
使用前,请将溶液 A 和 B 充分混合。不要涡旋溶液 B 或核糖体,将其轻轻混合。
溶液 A 可能呈浑浊白色。以均匀悬浮状态加入到反应中。
在冰上按下列加样顺序建立反应体系:溶液 A、溶液 B、RNAse 抑制剂、水、模板 DNA 或 RNA
建立反应体系后,要确保所有试剂都充分混合,可以轻柔地上下吸打混匀并进行短暂瞬时离心,37℃条件下温育 2 到 4 小时。 - 在冰上融化试剂和建立反应体系