DBCO-PEG4-Biotin
(Synonyms: 生物素-PEG4-DBCO) 目录号 : GC61573
DBCO-PEG4-Biotin是一种含生物素基团和4个PEG的azadibenzocyclooctyne-biotin衍生物。DBCO-PEG4-Biotin是一种用途广泛的生物素酰化试剂，能通过无铜催化烷基叠氮化反应(SPAAC)将生物素的一部分引入叠氮标记的生物分子中。
Cas No.:1255942-07-4
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
- View current batch:
- Purity: >95.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
DBCO-PEG4-Biotin is an azadibenzocyclooctyne-biotin derivative containing a biotin group and 4 PEGs. DBCO-PEG4-Biotin is a versatile biotinylation reagent used for the introduction of a biotin moiety to azide-labeled biomolecules via copper-free strain-promoted alkyne-azide click chemistry (SPAAC) reaction[1].
The alkyne group can react with azide moiety in copper-free Click Chemistry reaction to form a stable triazole linkage.
[1]. Hammink R, et al. Affinity-Based Purification of Polyisocyanopeptide Bioconjugates. Bioconjug Chem. 2017 Oct 18;28(10):2560-2568.
| Cas No. | 1255942-07-4 | SDF | |
| 别名 | 生物素-PEG4-DBCO | ||
| Canonical SMILES | O=C(NCCOCCOCCOCCOCCC(NCCC(N1C2=CC=CC=C2C#CC3=CC=CC=C3C1)=O)=O)CCCC[C@@H]4SC[C@]([C@]4([H])N5)([H])NC5=O | ||
| 分子式 | C39H51N5O8S | 分子量 | 749.92 |
| 溶解度 | 储存条件 | Store at -20°C | |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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| Shipping Condition | 评估样品解决方案：配备蓝冰进行发货。所有其他可用尺寸：配备RT，或根据请求配备蓝冰。 | ||
| 制备储备液 | |||
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1 mg | 5 mg | 10 mg |
| 1 mM | 1.3335 mL | 6.6674 mL | 13.3348 mL |
| 5 mM | 0.2667 mL | 1.3335 mL | 2.667 mL |
| 10 mM | 0.1333 mL | 0.6667 mL | 1.3335 mL |
| 第一步：请输入基本实验信息（考虑到实验过程中的损耗，建议多配一只动物的药量） | ||||||||||
| 给药剂量 | mg/kg |  |
动物平均体重 | g | |
每只动物给药体积 | ul | |
动物数量 | 只 |
| 第二步：请输入动物体内配方组成（配方适用于不溶于水的药物；不同批次药物配方比例不同，请联系GLPBIO为您提供正确的澄清溶液配方） | ||||||||||
| % DMSO % % Tween 80 % saline | ||||||||||
| 计算重置 | ||||||||||
计算结果:
工作液浓度： mg/ml；
DMSO母液配制方法： mg 药物溶于 μL DMSO溶液（母液浓度 mg/mL，
体内配方配制方法：取 μL DMSO母液，加入 μL PEG300，混匀澄清后加入μL Tween 80，混匀澄清后加入 μL saline，混匀澄清。
1. 首先保证母液是澄清的；
2.
一定要按照顺序依次将溶剂加入，进行下一步操作之前必须保证上一步操作得到的是澄清的溶液，可采用涡旋、超声或水浴加热等物理方法助溶。
3. 以上所有助溶剂都可在 GlpBio 网站选购。
Highly Selective Electrochemical Detection of 5-Formyluracil Relying on (2-Benzimidazolyl) Acetonitrile Labeling
Anal Chem 2021 Dec 14;93(49):16439-16446.PMID:34813282DOI:10.1021/acs.analchem.1c03389.
The identification of formylpyrimidines in DNA is crucial for a better understanding of epigenetics. Although many techniques have been explored to detect their content, more accurate methods of formylpyrimidine determination are still required due to the relatively lower sensitivity or lack of selectivity in current methods. Herein, an electrochemical method based on the covalent bonding of the azido derivative of (2-benzimidazolyl) acetonitrile (azi-BIAN) and the aldehyde group of 5-formyluracil (5fU) was proposed for the selective detection of 5fU in the presence of 5-formylcytosine (5fC) and apyrimidinic (AP) sites. Target DNA containing 5fU was first treated with azi-BIAN and then incubated with DBCO-PEG4-Biotin to introduce a biotin group by copper-free click chemistry. Next, the sulfhydryl group was attached to the 5' end of above DNA through T4 polynucleotide kinase-catalyzed reaction. Subsequently, the labeled DNA was assembled onto the AuNPs-modified glassy carbon electrode (AuNPs/GCE) through Au-S bonds, and the streptavidin-horseradish peroxidase conjugate (SA-HRP) was further immobilized onto the surface of the above electrode by specific recognition between biotin and streptavidin. Finally, HRP catalyzed hydroquinone oxidation to benzoquinone to enhance the current signal, which was related to the amount of 5fU in nucleic acids. This method demonstrated a good linear relationship with 5fU concentrations ranging from 0.1 to 10 nM. Moreover, the level of 5fU in γ-irradiated nucleic acids was also successfully detected, indicating that the combination of molecule-depended chemical recognition and electrochemical sensing is a promising method for the selective and sensitive detection of 5fU.