计算溶液所需的质量、体积或浓度。
EnzymoPure™,无动物源,无载体,质谱级 (MS),重组 级 ,适用于对基线干扰要求严格的色谱和分析工作流程。
-20°C储存,避免反复冻融。超低温运输 。请查阅批次 COA 获取详细规格。
SDS、COA、产品数据表及规格说明书均可下载。可通过批号查询获取批次 COA。
在色谱分析、有机合成和交叉偶联反应领域已被 441 篇同行评审文献引用。
胰蛋白酶特异性切割赖氨酸(K)及精氨酸(R)C 末端的肽键。由于产生的肽片段大小合适,容易正离子化,因此,胰酶是蛋白质质谱表征,蛋白质组学研究中最常用的工具蛋白酶;胰酶也广泛用于多肽药物生产。阿拉丁质谱级胰蛋白酶是由毕赤酵母重组表达,并采用高效层析色谱法纯化获得,同时对胰蛋白酶进行甲基化修饰,避免了胰酶自水解消化,去除了因自切而产生的假糜蛋白酶的活性。
产品组分表
| R1374101 | Component | 100μg | Storage |
| R1374101A | Trypsin | 100μg | -20℃. Avoid freeze/thaw cycle. |
| R1374101B | 1mM HCl | 300μl | -20℃. Avoid freeze/thaw cycle. |
产品主要信息
| 产品形态 | 蛋白冻干粉 |
| 蛋白分子量 | 23 kDa |
| 储存 | 粉末样品储存于-20℃ |
| 溶解液 | 1mM HCl 或 50mM 醋酸 |
| 酶切缓冲液 | 50mM 碳酸氢铵或者 pH=8.5 的 50mM 的 Tris-HCl 溶液 |
| 活性 | ≥13000U/mg protein |
| 酶活单位定义 | 胰蛋白酶与底物 BAEE 反应,每分钟在波长 253nm 每 0.001吸收值的差值 |
| pH值 | 适用范围 pH8-9 范围,<PH3 会导致不可逆失活 |
| 稳定性 | 部分试剂耐受最大浓度:1%的 SDC、0.1 %SDS、2M 尿素、20%乙腈 |
| 酶切位点 | 特异性水解蛋白质 K, R 氨基酸的 C 末端肽键 |
提示: 长期保存建议酶溶解之后分装-20℃冰箱冻存,避免反复冻融;短期保存:4℃下可保存 7 天无明显活性损失。
使用方法:
1. 使用 1mM HCl 溶液溶解胰酶冻干粉。例:向100μg 胰酶中加入 100μl 1mM HCl 溶解,配制成 1μg/μl 的胰酶溶液,分装成 10 管,每管分装 10μl 保存。
2. 胰酶的工作溶液是 50mM 碳酸氢铵,胰酶的使用比例为胰酶:目的蛋白=1:50,即 1μg 的胰酶可以酶切 50ug的蛋白溶液样品。
3. 37℃酶切过夜(16h)后,加入甲酸至 0.1%FA,终止酶切,进行后续质谱分析。
注意事项:本产品仅供研究使用,不可用于临床目的。
Trypsin specifically cleaves peptide bonds at the C - terminus of lysine (K) and arginine (R). Due to the appropriate size of the generated peptide fragments, which are easy to be positively ionized, trypsin is the most commonly used tool protease in protein mass spectrometry characterization and proteomics research; it is also widely used in the production of peptide drugs. Aladdin's mass spectrometry - grade trypsin is recombinantly expressed in Pichia pastoris and purified by high - performance chromatographic methods. Meanwhile, trypsin is modified by methylation to avoid self - hydrolysis and digestion of trypsin, and to remove the activity of pseudochymotrypsin generated by self - cleavage.
Product Component Table
| R1374101 | Component | 100μg | Storage |
| R1374101A | Trypsin | 100μg | -20℃. Avoid freeze/thaw cycle. |
| R1374101B | 1mM HCl | 300μl | -20℃. Avoid freeze/thaw cycle. |
Main Product Information
| Product Information | Details |
|---|---|
| Product Form | Protein Lyophilized Powder |
| Protein Molecular Weight | 23 kDa |
| Storage | Store the powder sample at -20°C |
| Dissolution Solution | 1 mM HCl or 50 mM Acetic Acid |
| Enzymatic Digestion Buffer | 50 mM Ammonium Bicarbonate or 50 mM Tris-HCl Solution with pH = 8.5 |
| Shelf Life | At -20°C, 2 years |
| Activity | ≥13000 U/mg protein |
| Definition of Enzyme Activity Unit | The difference in absorbance value per 0.001 at a wavelength of 253 nm per minute when trypsin reacts with substrate BAEE |
| pH Value | Applicable range: pH 8 - 9; pH < 3 will cause irreversible inactivation |
| Stability | Maximum concentrations tolerated by some reagents: 1% SDC, 0.1% SDS, 2 M Urea, 20% Acetonitrile |
| Enzymatic Digestion Site | Specifically hydrolyzes the peptide bond at the C - terminus of K and R amino acids in proteins |
Tips: For long - term storage, it is recommended to aliquot the dissolved enzyme and store it in a -20℃ refrigerator to avoid repeated freezing and thawing; for short - term storage: it can be stored at 4℃ for 7 days without significant loss of activity.
Usage Method:
1. Dissolve the trypsin lyophilized powder with 1mM HCl solution. For example: add 100μl of 1mM HCl to 100μg of trypsin to dissolve, prepare a 1μg/μl trypsin solution, aliquot into 10 tubes, and store 10μl in each tube.
2. The working solution of trypsin is 50mM ammonium bicarbonate, and the usage ratio of trypsin to the target protein is 1:50, that is, 1μg of trypsin can digest 50μg of protein solution sample.
3. After enzymatic cleavage at 37℃ overnight (16h), add formic acid to a concentration of 0.1% FA to terminate the enzymatic cleavage, and then perform subsequent mass spectrometry analysis.
Note: This product is for research use only and not for clinical purposes.
通过匹配包装上的批号来查找并下载产品的 COA,每批产品都进行了严格的验证,您可放心使用!
| 批号(Lot Number) | 证书类型 | 货号 |
|---|---|---|
| 分析证书 | R1374101 | |
| 分析证书 | R1374101 | |
| 分析证书 | R1374101 | |
| 分析证书 | R1374101 |
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